[Entomology • 2024] Melanabropsis formosensis & M. guizhouensis • Macropterous Species of Genus Melanabropsis Wang & Liu, 2020 (Orthoptera: Anostostomatidae: Anabropsini) from Taiwan and Guizhou

Melanabropsis formosensis   

 Chen, 2024 

    

DOI: doi.org/10.11646/zootaxa.5538.5.5

 

Abstract

The genus Melanabropsis currently consists of four micropterous species and one macropterous species from continental Asia and west Pacific islands. Yin (2024) predicted several potential habitats suitable for Melanabropsis species including Taiwan and Guizhou. In this study two additional new species from Taiwan and Guizhou are described, confirming the distribution prediction proposed by Yin. The distribution pattern of seven Melanabropsis species is discussed.

Orthoptera, Taiwan, Melanabropsis, taxonomy, new species, tegmina, distribution

Melanabropsis formosensis & 

Melanabropsis guizhouensis

Po-Wei CHEN. 2024. Macropterous Species of Genus Melanabropsis Wang & Liu, 2020 (Orthoptera: Anostostomatidae: Anabropsini) from the localities predicted in a previous study.  Zootaxa. 5538(5); 457-464. DOI: doi.org/10.11646/zootaxa.5538.5.5 [2024-11-19]

 facebook.com/100011515621580/posts/2136055463454954

facebook.com/MGOrthoptera/posts/1142514841212225

[Mollusca • 2026] Fansipanica milae, Vinatachea porcellana, ... • New taxa of Camaenidae (Gastropoda: Stylommatophora) from northern Vietnam

Fansipanica milae Páll-Gergely & Dedov,

   

in Páll-Gergely, Gojšina et Dedov, 2026.

DOI: doi.org/10.3897/zookeys.1280.185160

 

Abstract

The following new taxa are described from northern Vietnam: Fansipanica milae Páll-Gergely & Dedov, gen et sp. nov., Ducanhia Páll-Gergely, gen. nov. (type species: Helix balansai Morlet, 1886), Vinatachea porcellana Páll-Gergely, sp. nov. The reproductive anatomy of all three species is described. Helix (Chloritis) gereti Bavay & Dautzenberg, 1900 is moved to Fansipanica gen nov., and Camaena delsaerdti Thach & F. Huber, 2018 is moved to Vinatachea.

Key words: Anatomy, Fansipan Mountains, new species, systematics, taxonomy

Fansipanica milae gen. et sp. nov. 
A–C. Living specimen, D. Habitat. 

 

Fansipanica milae Páll-Gergely & Dedov, gen et sp. nov., 

Ducanhia Páll-Gergely, gen. nov. 

(type species: Helix balansai Morlet, 1886), 

Vinatachea porcellana Páll-Gergely, sp. nov. 

Barna Páll-Gergely, Vukašin Gojšina and Ivailo Dedov. 2026. New taxa of Camaenidae from northern Vietnam (Gastropoda, Stylommatophora). ZooKeys. 1280: 365-392. DOI: doi.org/10.3897/zookeys.1280.185160 [28 May 2026]

[Mollusca • 2022] Dendronotus shpataki • A New Species of the Genus Dendronotus (Gastropoda: Nudibranchia) from the Sea of Japan: a contribution of citizen science to marine zoology

  

Dendronotus shpataki sp. nov. in natural environment.

Ekimova, Mikhlina, Antokhina & Schepetov, 2022

 

DOI: 10.31610/zsr/2022.31.1.3 

  Researchgate.net/publication/358210579

Photos by Andrey Shpatak.

Abstract

 The nudibranch genus Dendronotus Alder et Hancock, 1845 is a common component of boreal and arctic ecosystems, which has recently received a considerable attention due to its high cryptic diversity. Here we describe a new species Dendronotus shpataki sp. nov. from the northwestern Sea of Japan, using the material and observations provided by Andrey Shpatak, a local citizen, diver and underwater photographer. We studied morphological features of the new species, including external morphology, coloration, jaw and radular morphology, and configuration of the reproductive system, as well as its ecological traits including possible diet preferences. We obtained DNA sequences and reconstructed the phylogeny by Bayesian Inference and Maximum Likelihood approaches using four molecular markers (mitochondrial COI and 16S rRNA, and nuclear histone H3 and 28S rRNA), and tested the boundaries between the species by calculating the uncorrected p-distances and automatic species delimitation methods ABGD and GMYC. Our results show that D. shpataki sp. nov. differs both morphologically and genetically from all other Dendronotus species. The new species possibly represents a unique example of local endemism, being found in a single locality, while other local Dendronotus species demonstrate wide distribution in the North-West Pacific. We also report on a considerable wearing of the radular teeth during feeding, which is a remarkable case for the Dendronotus.

Key words: North-West Pacific, biodiversity, morphology, radula, molecular markers, phylogeny, Nudibranchia, Dendronotidae, Dendronotus, new species

Dendronotus shpataki sp. nov., general appearance of living specimens.
 Holotype: dorsal view (A), lateral view (B) and ventral view (C).
Paratypes, dorsal view: adult specimens MIMB42309 (D), MIMB42308 (E), MIMB42305 (F)
and juvenile MIMB42306 (G). 

Scale bar: 5 mm.

Dendronotus shpataki sp. nov. in natural environment.
 Paratype MIMB42302 (A–C); the first documented finding of the new species in May 2015,
 the specimen was not collected (D); paratypes MIMB42303 (E, F).

Photos by Andrey Shpatak.

Dendronotus shpataki sp. nov.

I.A. Ekimova, A.L. Mikhlina, T.I. Antokhina and D.M. Schepetov. 2022. A Description of Dendronotus shpataki sp. nov. (Gastropoda: Nudibranchia) from the Sea of Japan: a contribution of citizen science to marine zoology. Zoosystematica Rossica. 31(1); 3–19. DOI: 10.31610/zsr/2022.31.1.3 

  Researchgate.net/publication/358210579_A_description_of_Dendronotus_shpataki_from_the_Sea_of_Japan

[Paleontology • 2026] Cicero spectabilis • Aptian archaeoniscid isopod from the Araripe Basin supports Tethyan-linked dispersal into Gondwanan lacustrine systems

Cicero spectabilis 

Lima, Anker, Heads, Pinheiro & Santana, 2026 

DOI: doi.org/10.1038/s41598-026-59890-0

Life reconstruction of Cicero spectabilis n. gen. n. sp. in the Aptian lacustrine environment of the Crato Formation, Araripe Basin, Brazil, showing several individuals scavenging on a dead fish (Dastilbe) on the lake floor, surrounded by aquatic vegetation (Notocyamus hydrophobus), fishes and arthropods.  

 Illustration by Maurílio Oliveira (paleoartist, MN/UFRJ).

Abstract

A new genus and species of fossil isopod, Cicero spectabilis n. gen. n. sp. is described from the Early Cretaceous (Aptian) Nova Olinda Member of the Crato Formation, Araripe Sedimentary Basin, Ceará, northeastern Brazil. The holotype, preserved in laminated limestones, represents the first confirmed record of the family Archaeoniscidae within this stratigraphic unit and extends the previously known paleogeographic distribution of archaeoniscid-like isopods into Gondwana lacustrine settings. The new genus is distinguished from other taxa currently referred to Archaeoniscidae—Archaeoniscus, Ferreniscus and Codoisopus, by its broad, ovate body, distinctive antennular subdivision, and a fan-like caudal structure formed by birramous uropods with well-differentiated exopod and endopod, combined with a rounded subrectangular pleotelson bearing a row of posterior setae. The exceptional preservation of C. spectabilis n. gen. n. sp. enables a detailed assessment of functionally relevant characters and supports interpretation of a benthic lifestyle on soft, low-energy substrates. A conservative concept of the family and a combination of body, pleon-pleotelson and antennular features justifies the placement of Cicero n. gen. within this extinct sphaeromatidean lineage. Within this framework, the occurrence C. spectabilis n. gen. n. sp. in a stratified lacustrine system of the Araripe Basin, together with other Mesozoic archaeoniscid-like records, suggest that some lineages currently assigned to Archaeoniscidae were able to colonize a range of non-marine environments during the Early Cretaceous, while also underscoring the need for a comprehensive phylogenetic reassessment of the group.

Keywords: Malacostraca, Sphaeromatidea, Fossil isopod, Crustacean, Santana group, Archaeoniscidae, Crato formation

Holotype of Cicero spectabilis n. gen. n. sp. from the Aptian Nova Olinda Member of the Crato Formation, Araripe Basin, Brazil (MPSC 9701). A, Ventral view of the specimen preserved in laminated limestone. B, Interpretative line drawing highlighting cephalic appendages, pereopods, pleon, pleotelson, and uropods. Scale bars: 2 mm.

Cicero spectabilis n. gen. n. sp.

Life reconstruction of Cicero spectabilis n. gen. n. sp. in the Aptian lacustrine environment of the Crato Formation, Araripe Basin, Brazil, showing several individuals scavenging on a dead fish (Dastilbe) on the lake floor, surrounded by aquatic vegetation (Notocyamus hydrophobus), fishes and arthropods. Coloration and most dorsal features are conjectural and based on extant sphaeromatidean isopods. Illustration by Maurílio Oliveira (paleoartist, MN/UFRJ).

Daniel Lima, Arthur Anker, Sam W. Heads, Allysson P. Pinheiro and William Santana. 2026. Aptian archaeoniscid isopod from the Araripe Basin supports Tethyan-linked dispersal into Gondwanan lacustrine systems. Scientific Reports. 16: 23631. DOI: doi.org/10.1038/s41598-026-59890-0 [19 July 2026]

 

[PaleoEntomology • 2026] Icaroramus perisi • A Firefly Relative that Smelled and Glowed: Evidence for Complex Signalling Systems in Cretaceous lampyroids

Icaroramus perisi Li, Kundrata & Cai 

in Li, Kundrata, Huang, Myint et Cai, 2026. 

DOI: doi.org/10.1098/rspb.2026.0295 

Artwork by Ding-Hua Yang

Abstract

The evolution of insect sensory and signalling systems has played a key role in arthropod diversification, yet direct fossil evidence illuminating their early history remains rare. Lampyroids, including fireflies and their relatives, are notable for their elaborately modified antennae and bioluminescence. These characteristics make them an exceptional model for understanding the coevolution of sensory and signalling modalities. Here we describe Icaroramus perisi gen. et sp. nov. from mid-Cretaceous Kachin amber, a lampyroid beetle tentatively placed within Cretophengodidae. Icaroramus is exceptional in possessing both extraordinarily elaborate antennae and a well-developed photic organ. Its 12-segmented quadriheteroramose antennae represent an antennal architecture unknown among extant and fossil beetles. Functionally, these antennae likely combined an expanded olfactory surface area with differentiated sensory fields, enhancing the detection of pheromonal cues. Mate location was therefore probably mediated primarily by pheromones, whereas bioluminescence may have retained its plesiomorphic role in aposematic defence. This discovery expands the known morphological and ecological diversity of Cretaceous lampyroids and provides new insight into the origins of complex signalling strategies in fireflies and their relatives.

Keywords: Cretophengodidae, Kachin amber, heteroramose antenna, mating strategy, bioluminescence  

  

Icaroramus perisi, holotype, NIGP209038.
(A, B) Habitus, dorsal and ventral views, under reflected illumination. (C) Schematic reconstruction of antenna (proportions approximate).

Scale bars: 2 mm in (A,B).

Systematic palaeontology

Order Coleoptera Linnaeus, 1758

Superfamily Elateroidea Leach, 1815

Family (?) Cretophengodidae Li et al., 2021

Genus Icaroramus Li, Kundrata & Cai gen. nov.

 

Diagnosis. Antennae 12-segmented; antennomeres 4–11 quadriheteroramose, each with two morphologically different pairs of rami (figures 1C, 2A–C) (antennomeres 4–11 biramose in Cretophengodes Li et al.). Pronotum with posterior angles acute and shortly produced posteriorly (figure 1A) (posterior pronotal angles obtuse in Cretophengodes). Prosternum in front of coxae longer than longitudinal diameter of procoxal cavity; prosternal process extending well beyond procoxae and fitting into mesoventral cavity (figure 2D). Mesoventral cavity well developed (figure 2E). Abdomen with six ventrites; ventrite 6 with entire surface luminous (figure 1B) (possible luminous organ present on medial portions of abdominal ventrites 1–3 in Cretophengodes).

Etymology. The generic name is formed from Icarus, the mythological figure who flew too close to the Sun and fell into the sea, and ramus, referring to the multiple long rami on each antennomere. It metaphorically evokes an evolutionary ‘overreach’, a unique antennal elaboration that was lost and not inherited by extant lineages. The name is masculine in gender.

Icaroramus perisi Li, Kundrata, Cai sp. nov.  

Etymology. The species is named after the palaeoentomologist Dr David Peris.

 

Artistic reconstruction of Icaroramus perisi glowing in mid-Cretaceous forest.

 

Yan-Da Li; Robin Kundrata; Diying Huang; Tin Aung Myint; Chenyang Cai. 2026. A Firefly Relative that Smelled and Glowed: Evidence for Complex Signalling Systems in Cretaceous lampyroids. Proc. R. Soc. B (2026) 293 (2075): 20260295. DOI: doi.org/10.1098/rspb.2026.0295 [29 Jul 2026]

Cretaceous Beetle Fossil Reveals Early Evolution of Firefly Sensory and Signaling Systems

https://english.cas.cn/newsroom/research-news/202607/t20260729_1179346.shtml

 

[Entomology • 2026] Attenboroughnculus tau • A New Genus of Pedunculinae (Hymenoptera: Ichneumonidae) from Chile and A Key to the World Genera

Attenboroughnculus tau De Ketelaere and Broad,

in De Ketelaere, Pullar et Broad, 2026.  

 DOI: doi.org/10.1080/00222933.2026.2663058 

ABSTRACT

A new genus of Pedunculinae (Hymenoptera: Ichneumonidae) is described: Attenboroughnculus De Ketelaere and Broad, gen. n. a monotypic genus for Attenboroughnculus tau De Ketelaere and Broad, sp. n. collected in central Chile. This is the fourth genus and fourth described species of Pedunculinae and the second from the Neotropics. Each of the four known genera is defined by putative apomorphies, included in an identification key, and photos of each are provided.

KEYWORDS: Austral, Darwin wasps, Gondwanan, new species, South America, taxonomy, Sir David Attenborough

Attenboroughnculus De Ketelaere and Broad, gen. n.

  

Etymology: 

This unique genus from Chile has been named after Sir David Attenborough ahead of his 100th birthday, celebrating the broadcaster and biologist’s highly distinctive contribution to our understanding of the natural world. David Attenborough has featured Chile’s diverse, extreme landscapes in several documentaries, emphasising the unique environmental challenges and ecological resilience of species within the country.

Sir David has also filmed several scenes with parasitoid wasps, famously termed the ‘bodysnatcher wasp’ by the broadcaster in the Trials of Life, first broadcast in 1990. He has used his work to reveal the intimate, unseen or overlooked within nature. This resonates in the discovery of this species in an unsorted drawer within the collections of the Natural History Museum, London.

In 2023 Sir David revealed a new bronze quote outside the Natural History Museum, London, reading: The future of the natural world, on which we all depend, is in our hands. We are using this opportunity to echo this message through the naming of this new genus of tiny wasp.

We hope to inspire global scientists to take another look in their collections to see if there is something small that could contribute to our collective understanding and therefore the future of our natural world. The name is a concatenation of ‘Attenborough’ and ‘Pedunculus’.

Attenboroughnculus tau De Ketelaere and Broad, sp. n.

Etymology: Named after the large, capital ‘T’ marking on the second metasomal tergite, with ‘tau’ being the Greek for ‘T’. A noun in apposition.

Augustijn De Ketelaere, Jennifer Pullar and Gavin R. Broad. 2026. The Description of A New Genus of Pedunculinae (Hymenoptera: Ichneumonidae) from Chile and A Key to the World Genera. Journal of Natural History. 60(21-24); 1167-1180. DOI: doi.org/10.1080/00222933.2026.2663058 [07 May 2026]

[Arachnida • 2026] Tigidia singhal • A New Species of the Trapdoor Spider Genus Tigidia Simon, 1892 (Araneae: Barychelidae) from the Deccan Plateau, India

Tigidia singhal

 Tripathi, Bolde & Vanak, 2026

 

 DOI: doi.org/10.13156/arac.2026.20.5.15 

 Researchgate.net/publication/408253064

 

Abstract

A new species of trapdoor spider, Tigidia singhal sp. nov., is described from the semi-arid grasslands of the Deccan Plateau in Maharashtra, India. Detailed morphological descriptions, measurements, and illustrations of the holotype female are provided. This discovery marks the first record of the genus Tigidia from a semi-arid, open natural ecosystem, significantly expanding its known biogeographic range beyond the evergreen and deciduous forest habitats of peninsular India. Additionally, we document natural history observations, including burrow architecture and microhabitat preferences. This find highlights the underexplored diversity of Indian mygalomorph spiders and underscores the critical need for biodiversity surveys in open natural ecosystems.

KEYWORDS: burrowing behaviour, Mygalomorphae, range extension, semi-arid ecosystem, systematics

Tigidia singhal sp. nov., field photographs.
A collection locality; B holotype female; C excavated burrow showing silk lining; D schematic representation of burrow architecture.

Tigidia singhal sp. nov., holotype female.
A habitus, dorsal view; B eye group, dorsal view; C fovea, dorsal view; D cephalothorax, ventral view; E spinnerets, ventral view; F chelicera, prolateral view; G close-up of cheliceral furrow showing basomesal teeth; H leg I, prolateral view; I left leg III showing preening comb on metatarsus, ventral view; J same, leg IV. Scale bars = 5 mm (A), 1 mm (B–C, E–F, I–J), 2 mm (D, H), 0.2 mm (G).

Barychelidae Simon, 1889a

Tigidia Simon, 1892

Type species: Tigidia mauriciana Simon, 1892.

Diagnosis: For description and diagnosis of the genus see Mirza (2023).

Distribution: India, Madagascar, and Mauritius Islands (Mirza 2023; World Spider Catalog 2026).

Tigidia singhal sp. nov.  

Diagnosis: Females of Tigidia singhal sp. nov. are similar to T. fasciata Mirza, 2023, T. jalgaonensis Mirza, 2023, and T. tangerina Mirza, 2023 in possessing elongate, widely separated spermathecae. However, they can be differentiated by a unique combination of characters: in T. singhal the spermathecal stalks arise from the middle of the spermathecae (v. arising from the apex in T. jalgaonensis, at bottom in T. tangerina, and ...

Etymology: The species is named in honor of Sandeep Singhal for his contributions to grassland conservation in India, including this work; the species was collected from semi-arid grassland habitats, highlighting the ecological importance of these ecosystems.

Rishikesh Tripathi, Prasad Bolde, Abi Tamim Vanak. 2026. A New Species of the Trapdoor Spider Genus Tigidia Simon, 1892 (Araneae: Barychelidae) from the Deccan Plateau, India. Arachnology. 20(5); 749-752. DOI: doi.org/10.13156/arac.2026.20.5.15 [8 July 2026]

 Researchgate.net/publication/408253064_A_new_species_of_Tigidia_from_the_Deccan_Plateau_India

[Crustacea • 2026] Pachycheles ravichandrani • A New Species of Porcelain Crab (Decapoda: Porcellanidae) from Lakshadweep, India

 

Pachycheles ravichandrani 

Sureandiran, Radhakrishnan, S. Kumar & T. T. A. Kumar, 2026

DOI: doi.org/10.11646/zootaxa.5849.2.6 

 Researchgate.net/publication/409222030 

Abstract

A new species of porcelain crab, Pachycheles ravichandrani sp. nov. is described from specimens collected at Agatti Island, Lakshadweep, India. Pachycheles ravichandrani sp. nov. shares similar morphology with P. garciaensis (Ward 1942) and P. setiferous Yang, 1996 in the following characters: carapace with trilobed front, cheliped without setae, 5-plated telson and presence of a pair of pleopods in males. The new species, however, is differentiated by the presence of setae along lateral ridges and posterior margin of carapace, minor cheliped with distinct gap between fingers and cutting edge of minor cheliped truncate. To validate the taxonomic status of the new species, molecular analysis, using COI and 16S rRNA genes were carried out. Phylogenetic reconstruction consistently showed P. ravichandrani sp. nov. as a distinct, well-supported lineage separate from all congeners. Genetic divergence within the genus Pachycheles ranged from 12.6–21.7% (COI) and 4.0–13.7% (16S rRNA).

Crustacea, Crab, Integrative taxonomy, Indian Ocean, Lakshadweep reefs

Pachycheles ravichandrani sp. nov. in live condition, collected from Agatti Island, Lakshadweep. Specimen not preserved. Scale bar: 1 mm.

Pachycheles ravichandrani sp. nov., holotype male, PORPRAV/NBFGR, CW 3.69 mm.

 A, carapace, dorsal view; B, frontal lobe, frontal view; C, antennular peduncle, dorsal view; D, antennule basal segment, dorsal view; E, maxilliped 3, ventral view; F, thoracic sternite, ventral view; G, pleopod, dorsal view. 

Scale bars: A, B, F = 1 mm; C–E, G = 0.5 mm.

 A, major cheliped, dorsal view; B, fingers of major cheliped, closer view; C, minor cheliped, dorsal view (paratype male, PORPRAV/NBFGR.1); D, fingers of minor cheliped, closer view (paratype male); E, P2, lateral view; F, P3, lateral view; G, P4, lateral view; H, P5, lateral view. 

Scale bars: A–D = 1 mm; E–H = 0.5 mm.

Pachycheles ravichandrani sp. nov. 

BALAMURUGAN SUREANDIRAN, DIVYA PREMA RADHAKRISHNAN, SENDHIL KUMAR and THIPRAMALAI THANGAPPAN AJITH KUMAR. 2026. Pachycheles ravichandrani, A New Species of Porcelain Crab from Lakshadweep, India (Crustacea: Decapoda: Porcellanidae).  Zootaxa. 5849(2); 227-238. DOI: doi.org/10.11646/zootaxa.5849.2.6 [2026-07-13]

 Researchgate.net/publication/409222030_Pachycheles_ravichandrani_a_new_species_of_porcelain_crab_from_Lakshadweep_India

[Entomology • 2026] Caloptilia augeas & C. ceryneia • Two New Species of Caloptilia (Lepidoptera: Gracillariidae) from New Caledonia inducing galls on Glochidion billardierei (Phyllanthaceae) and Redescription of C. xanthopharella (Meyrick, 1880)

[4-6] Caloptilia augeas
[11-13] Caloptilia ceryneia 

Guiguet, Lopez-Vaamonde, van Nieukerken & Ohshima, 

in Guiguet, van Nieukerken, Giron, Gravendeel, Lopez-Vaamonde et Ohshima, 2026. 

 DOI: doi.org/10.3897/zookeys.1268.173885 

Abstract

New Caledonia is a biodiversity hotspot with high levels of micro-endemism, yet its gracillariid fauna remains poorly documented. Here, two new species of Caloptilia Hübner, 1825 (Gracillariidae) are described from Glochidion J.R.Forst. & G.Forst. (Phyllanthaceae) host plants in Parc des Grandes Fougères, New Caledonia: Caloptilia augeas Guiguet, Lopez-Vaamonde, van Nieukerken & Ohshima, sp. nov., and Caloptilia ceryneia Guiguet, Lopez-Vaamonde, van Nieukerken & Ohshima, sp. nov. Both species induce leaf galls on Glochidion billardierei Baill., co-occurring on the same host species, sometimes even on the same leaf. They exhibit distinct wing patterns, but very similar male and female genitalia, and DNA barcoding supports their status as separate species. These findings provide evidence for potential within-host sympatric speciation, as documented in other gall-inducing insects. The larval biology of C. augeas and C. ceryneia reveals a unique frass disposal behaviour, whereby waste is excreted through a hole and the aperture is subsequently sealed—an adaptation not previously reported in gall-inducing Lepidoptera. Our findings double the known number of gall-inducing species in Gracillariidae, highlighting that this life history strategy may be more common than currently appreciated. We also provide new information on distribution and host plants of Caloptilia xanthopharella (Meyrick, 1880), a leaf roller found on the same host plant, G. billardierei. These findings mark the first records of the subfamily Gracillariinae in New Caledonia. This study underscores the underexplored diversity of New Caledonian gracillariids and emphasises the conservation value of Parc des Grandes Fougères. Further surveys in the Indo-Pacific region may reveal additional yet undescribed Caloptilia species associated with Phyllanthaceae and help clarify the evolutionary mechanisms underpinning their diversification.

Key words: Australia, DNA barcoding, endemism, frass disposal, host plant use, sympatry, taxonomy

Habitus of adult Caloptilia augeas sp. nov. 

4. Resting posture; 5. Paratype, male RMNH.INS.25563; 6. Holotype, male, RMNH.INS.25562.
 

Habitus of adult Caloptilia ceryneia sp. nov.
11. Resting posture, holotype male, RMNH.INS.25650; 12. Paratype, female, RMNH.INS.25565; 13. Paratype, male, RMNH.INS.25564.
Scale bars: 2 mm.

Caloptilia augeas Guiguet, Lopez-Vaamonde, van Nieukerken & Ohshima, sp. nov., 

Etymology. The specific name augeas refers to the fifth Labour of Hercules in the Greek mythology. The larval behaviour of frass cleaning in the gall reminds this Labour that consisted in cleaning the stables of king Augeas (Αὐγέας). This name comes from the word “αὐγή” that designates “sun shine” and “reflection of a shiny object” in Classic Greek (Bailly 1899), referring to the bright colour of the adult wings. The epithet is to be regarded as a noun in apposition.

Caloptilia ceryneia Guiguet, Lopez-Vaamonde, van Nieukerken & Ohshima, sp. nov.

Etymology. The specific name ceryneia refers to the ancient Greek city of Ceryneia or Keryneia (Κερύνεια), the location of the Ceryneian Hind from Greek mythology, which features in the third Labour of Hercules. The moth’s striking yellow and red wing pattern evokes the golden antlers and bronze hooves of the mythical deer. Its cryptic gall-inducing behaviour also recalls the elusive nature of the Ceryneian hind, which was known for its ability to remain hidden. The epithet is to be treated as a noun in apposition.

 Antoine Guiguet, Erik J. van Nieukerken, David Giron, Barbara Gravendeel, Carlos Lopez-Vaamonde, Issei Ohshima. 2026. Two New Species of Caloptilia (Lepidoptera, Gracillariidae) from New Caledonia inducing galls on Glochidion billardierei (Phyllanthaceae) and Redescription of C. xanthopharella (Meyrick, 1880). ZooKeys. 1268: 113-137. DOI: doi.org/10.3897/zookeys.1268.173885 [04 Feb 2026]

[Arachnida • 2026] Kwonkan elatus & K. yorkrakine • Wishbone Spiders of the Genus Kwonkan Main, 1983 (Araneae: Mygalomorphae: Anamidae) in south-western Australia: Redescription of legacy species, Two New Species, and an assessment of agricultural zone diversity

Live spiders and burrows of Kwonkan.
A Juvenile K. eboracum. B Female K. wonganensis C Juvenile K. sp. ‘MYG978’ 
 Burrow entrance morphology of D K. eboracum (open); E K. wonganensis (closed); F K. sp. ‘MYG978’(open) 
G, H Burrow entrance morphology of K. turriger, showing both free-standing (G) and foliage-supported (H) burrow entrances. I Burrow entrance morphology (open) of an undescribed Kwonkan species from near Leinster, W.A. 

in Wilson, Urso, Rix, et Harvey, 2026. 

  DOI: doi.org/10.3897/asp.84.e189518 

 Photos: A, C, F, I by J. Wilson; B, E by E. Volschenk; D by V. Cruz Bedón; G, H by M. Harvey.

Abstract

The collar-door wishbone spiders of the genus Kwonkan Main, 1983 are an Australian-endemic lineage of mygalomorph spiders that often construct elaborate burrow entrances, including collars and turrets, and remain poorly documented across their range, despite museum collections indicating high local endemism and substantial undescribed diversity. Much of the existing taxonomy, including nine of the 14 currently described species, was based on limited material and lacked modern morphological or molecular approaches to species delimitation, hindering efforts to document the remaining diversity and address conservation concerns. Here, we redescribe all nine legacy species and review Kwonkan diversity within the south-western Western Australian (SWWA) agricultural region, a highly fragmented and mostly cleared landscape harbouring extensive undescribed diversity and the threatened species K. eboracum Main, 1983. In the process, we clarify species identities, present the first molecular data for several species including K. eboracum, and describe two new species (K. elatus sp. nov. and K. yorkrakine sp. nov.) that were previously attributed to legacy species. In our review of the SWWA agricultural region fauna we identify 29 putative undescribed species and a pattern of extensive sympatry, fine-scale species turnover, and extremely restricted ranges. These findings highlight the need for continued revisionary work and potential conservation listing of additional described species such as K. wonganensis (Main, 1977).

Keywords: short-range endemism, conservation systematics, mygalomorph spiders, south-western Australian biodiversity hotspot, Wheatbelt

Live spiders and burrows of Kwonkan.
A Juvenile K. eboracum from near Kellerberrin, Western Australia (W.A.). B Female K. wonganensis from near Wongan Hills, W.A. C Juvenile K. sp. ‘MYG978’ from the Avon Wheatbelt, W.A.
D Burrow entrance morphology (open) of K. eboracum from near Kellerberrin, W.A. E Burrow entrance morphology (closed) of K. wonganensis from near Wongan Hills, W.A. F Burrow entrance morphology (open) of K. sp. ‘MYG978’ from the Avon Wheatbelt, W.A.
G, H Burrow entrance morphology of K. turriger, showing both free-standing (G) and foliage-supported (H) burrow entrances. I Burrow entrance morphology (open) of an undescribed Kwonkan species from near Leinster, W.A. 

 Photos: A, C, F, I by J. Wilson; B, E by E. Volschenk; D by V. Cruz Bedón; G, H by M. Harvey.

 Jeremy D. Wilson, Arianna Urso, Michael G. Rix, Erich S. Volschenk, Valentina Cruz Bedón and Mark S. Harvey. 2026. Wishbone Spiders of the Genus Kwonkan Main, 1983 (Araneae: Mygalomorphae: Anamidae) in south-western Australia: Redescription of legacy species, Two New Species, and an assessment of agricultural zone diversity. Arthropod Systematics & Phylogeny. 84: 510-547.  DOI: doi.org/10.3897/asp.84.e189518 [08-07-2026]

[Mollusca • 2026] Cyllena hermes • From the Dark to the Light: A New Genus and Species of stygobiont hydrobiid (Caenogastropoda: Truncatelloidea: Hydrobiidae) from southern Greece

Cyllena hermes  Radea & Protopapas,

in Radea, Protopapas, Parmakelis et Koskeridou, 2026. 

DOI: doi.org/10.3897/subtbiol.57.189090

Abstract

A new stygobiont hydrobiid genus and species is described from the Stymphalia karst basin (Peloponnese, Greece). Cyllena hermes gen. et sp. nov. is distinguished from other valvatiform or valvatiform–planorboid stygobiont hydrobiids by a unique combination of shell and anatomical characters, supporting the establishment of a new monotypic genus. It is currently known from a single karstic spring connected to the subterranean hydrological network of the Stymphalia polje, indicating a highly localized distribution. Following a precautionary approach, and in accordance with IUCN criteria, the species is here considered to qualify as Vulnerable (VU D2). The discovery of the new genus contributes to the documentation of subterranean aquatic gastropod diversity in Greece and emphasizes the need for further targeted exploration of karst ecosystems in the region.

Keywords: Endemism, Hydrobiidae, IUCN, Peloponnese, karst aquifer

Cyllena hermes gen. et sp. nov.
Shell views of collected specimens. A, G, J, M, P dorsal views B, H, K, N, Q ventral views C–E, I, L, O, R lateral views F operculum A–E holotype.

 Scale bar: 1 mm.

Cyllena hermes gen. et sp. nov.
Views from a single immature specimen. A dorsal view B ventral view C, D lateral view E–G scanning electron micrographs of shell and protoconch respectively.

Scale bars: 1 mm (A–E); 100 μm (F); 50 μm (G).

Systematic description

Class Gastropoda Cuvier, 1795

Subclass Caenogastropoda Cox in Moore, 1960

Order Littorinimorpha Golikov & Starobogatov, 1975

Superfamily Truncatelloidea J.E. Gray, 1840

Family Hydrobiidae W. Stimpson, 1865

Cyllena Radea & Protopapas, 2026, gen. nov. 

Type species. Cyllena hermes sp. nov. by original designation.

Diagnosis. Shell minute, valvatiform to planorboid; umbilicus wide, with earlier whorls visible; soft body unpigmented; eyes absent; bursa copulatrix pyriform; a single seminal receptacle [proximal, rs2 (Radoman 1973)] large and irregular in shape; penis large, dorso-ventrally flattened, distally blunt with papilla and proximally folded, bearing a single, elongate, blunt, medial lobe.

Etymology. The generic name derives from the Greek mythology: Cyllena (Κυλλήνη in Greek) was a nymph of Mt Kyllini, Korinthia, Peloponnese, and the nurturer of the god Hermes. Gender feminine.

Cyllena hermes Radea & Protopapas, 2026, sp. nov.

Etymology. The specific name, used in apposition, is derived from Greek mythology. Hermes (Ἑρμῆς in Greek) was one of the twelve Olympian gods, the messenger of the other Olympian deities, and was born in a cave on Mt Kyllini.

Live specimens of Cyllena hermes gen. et sp. nov.
A–F live mature specimen, shown from the moment of emergence from the shell to active locomotion while foraging 
G–I another mature specimen; White arrows indicate the direction of movement J immature specimen floating at the water surface while feeding
K caddisfly case (Insecta, Trichoptera) constructed from gastropod shells, including shells of Cyllena hermes gen. et sp. nov. Scale bars: 1 mm.

Canella Radea, Dimitrios Protopapas, Aristeidis Parmakelis and Efterpi Koskeridou. 2026. From the Dark to the Light: A New Genus and Species of stygobiont hydrobiid (Caenogastropoda, Truncatelloidea) from southern Greece. Subterranean Biology. 57: 1-21. DOI: doi.org/10.3897/subtbiol.57.189090  [18 Jun 2026]

 

 

[Arachnida • 2026] Latrodectus lucacha • A New Andean Species of Widow Spider (Araneae: Theridiidae: Latrodectus)

Latrodectus lucacha  

 Miller, Kratzer & Griswold, 2026

DOI:  doi.org/10.3897/zookeys.1281.185973 

 

Abstract

We describe a new species of widow spider (Araneae, Theridiidae, Latrodectus) from the Andean region. DNA barcode sequences are provided. The species is documented from museum specimens across Peru and identified from photographs on iNaturalist, extending its inferred distribution into Ecuador, Bolivia, and Chile. We integrate specimen and citizen-science occurrences to generate a species distribution model using WorldClim bioclimatic variables, predicting highest suitability along temperate to high-elevation Andean regions. We discuss the utility and limitations of citizen-science imagery for delimiting and mapping species and summarize available information on clinical aspects of envenomation in Peru associated with the local “lucacha” widow spider.

Key words: Andes, citizen-science, DNA barcode, iNaturalist, Latrodectus lucacha, new species, Peru, species distribution model, taxonomy

Observations of Latrodectus lucacha Miller, Kratzer & Griswold, sp. nov., from iNaturalist.
A. Female, male and egg case, from Arica, Arica y Parinacota, Chile; iNaturalist.org (by ferru, CC-BY-NC); B. Female with two egg cases, note parasitoid wasps on egg case, from Nabón, Azuay, Ecuador; iNaturalist.org (by kabirbosques, CC-BY);
C. Female feeding on a beetle, from Lima, Peru; iNaturalist.org (by ruthgo, CC0); D. Female feeding on a damselfly, from Lima, Peru; iNaturalist.org (by Mathieu_fr, CC-BY-NC).

Latrodectus lucacha Miller, Kratzer & Griswold, sp. nov.
A–C. From Pantanos de Villa Om, Lima, Peru (MUSM-ENT 051958), microphotographs of adult male; D. From Pachacayo, Junin, Peru (MUSM-ENT 0519569), schematic illustration of female reproductive structures; A, D. Dorsal; B. Lateral; C. Ventral.

Abbreviations: CD copulatory duct, FD Fertilization duct, SP Spermathecae. 

Scale bars: 1.0 mm (A–C), 0.5 mm (D).

Latrodectus lucacha Miller, Kratzer & Griswold, sp. nov.

Diagnosis. Female with three loop copulatory ducts (Figs 2D, 3D–F), distinguishing it from L. geometricus C. L. Koch, 1841 and L. quartus Abalos, 1980 (Abalos 1980: figs 39, 66), which have more loops (ca 4), and from L. antheratus (Badcock, 1932) and L. variegatus Nicolet, 1849 (Abalos 1980: figs 49, 58), which have fewer (2). With dorsal longitudinal opisthosomal stripe variable in both width and length (Figs 4, 5), resembling several South American species, but not exhibiting oblique vertical stripes on the posterior quarter ...

Etymology. Lucacha is a common name for widow spiders in Peru (Pickard-Cambridge 1902; Maguiña Vargas et al. 2017).

Jeremy Miller, Chris Alice Kratzer and Charles Griswold. 2026. Description of A New Andean Species of Widow Spider (Araneae, Theridiidae, Latrodectus). ZooKeys. 1281: 49-67. DOI:  doi.org/10.3897/zookeys.1281.185973 

[Entomology • 2026] Cryptocephalomorpha thom • A New Species of the myrmecophilous Genus Cryptocephalomorpha Ritsema, 1875 (Coleoptera: Carabidae: Pseudomorphini), from the Indochinese Peninsula

Cryptocephalomorpha thom Choi, Nomura & Park,

in Choi, Nomura, Kwon, Choi et Park, 2026.

DOI: doi.org/10.3897/dez.73.192635

 

Abstract

Based on specimens collected in southern Cambodia and western Thailand, Cryptocephalomorpha thom sp. nov., a new species of the genus Cryptocephalomorpha Ritsema, 1875 (Coleoptera, Carabidae, Pseudomorphini), is described. This study provides the first confirmed Cambodian record of the tribe and documents the occurrence of the new species in Cambodia and Thailand. A key to the Oriental genera of Pseudomorphini and an updated key to the Oriental species of the genus are provided, together with a description and illustrations of the new species.

Key Words: Cambodia, Carabidae, Cryptocephalomorpha, new species, Pseudomorphini, Thailand

Cryptocephalomorpha thom sp. nov.
Habitus of the holotype and paratype: A–C. Holotype, male; D–F. Paratype, female; A, D. Dorsal aspect; B, E. Ventral aspect; C, F. Left lateral aspect.
Elytral marginal setigerous punctures: A–B. Holotype, male; C–D. Paratype, female; A, C. Humeral series of elytral marginal setigerous punctures; B, D. Elytral subapex, without a subapical setigerous puncture.

Genus Cryptocephalomorpha Ritsema, 1875: XCII.

Type species. Cryptocephalomorpha gaverei Ritsema, 1875.

Cryptocephalomorpha thom Choi, Nomura & Park, sp. nov.

Differential diagnosis.

Large species for the genus, body length more than 6 mm from head to visible abdominal segment. Mandible normal, without lateral excision and spine. Ground color almost uniformly dark brown, with small, narrow reddish patch on each of elytral subapex. Pronotal lateral margin distinctly explanate laterally; lateral margin visible from above. Elytral longer; length/width ratio of 1.22–1.25, lateral margin incurved below; lateral margin not distinctly visible from above, narrowed toward the apex, without a lateral seta of apical series and with a small elytral light patch on each side. Male abdominal sternite VI with dense pubescent pad at middle. Female abdominal sternite VI with four setae.

This is a large species within the genus Cryptocephalomorpha, readily recognized by its distinctive form of the elytral lateral margin and coloration. Among known congeners, it is most ...

Etymology: The new species is named after the Khmer word thom, meaning “large” or “big” (Khmer: ធំ). The epithet is treated as a noun in apposition and refers to the comparatively large size of the species within the genus.

Jong Bong Choi, Shuhei Nomura, Taeyeong Kwon, Eunyoung Choi and Jong Kyun Park. 2026. A New Species of the myrmecophilous Genus Cryptocephalomorpha Ritsema, 1875, from the Indochinese Peninsula (Coleoptera, Carabidae, Pseudomorphini). Deutsche Entomologische Zeitschrift. 73(2): 323-331. DOI: doi.org/10.3897/dez.73.192635 [10 Jul 2026]