Tuesday, March 31, 2020

[Entomology • 2020] Contributions to the Taxonomy and Biogeography of Nemeritis Holmgren (Hymenoptera: Ichneumonidae: Campopleginae)

Nemeritis ananenkoi  Vas, 2020

Four new species of Nemeritis Holmgren are described, N. ananenkoi sp. nov. from the Balkan Peninsula, N. baranovi sp. nov. from Mongolia, N. bespalovi sp. nov. from Turkey, and N. legasovi sp. nov. from Mongolia. Additionally, the first reports of N. aequalis Horstmann from Republic of North Macedonia, N. caudata (Szépligeti) from Greece, N. lativentris Thomson from Hungary, N. macrocentra (Gravenhorst) from Mongolia and Serbia, N. minor (Szépligeti) from Republic of North Macedonia, N. pygmaea Horstmann from Hungary, N. scaposa Horstmann from Mongolia, N. silvicola Horstmann, N. specularis Horstmann and N. stenura Thomson from Hungary are given. Among them two species, N. macrocentra (Gravenhorst) and N. scaposa Horstmann, are new for the Eastern Palaearctic region.

Keywords: Hymenoptera, new species, new records, Palaearctic, Chernobyl

Zoltán Vas. 2020. Contributions to the Taxonomy and Biogeography of Nemeritis Holmgren (Hymenoptera: Ichneumonidae: Campopleginae). Zootaxa. 4758(3); 486–500. DOI:  10.11646/zootaxa.4758.3.4

Monday, March 30, 2020

[Entomology • 2020] Incurvaria pirinella • A New Species of the vetulella species-group (Lepidoptera, Incurvariidae) from Bulgaria, with release of DNA Barcodes for European Species of Incurvaria

[3-5] Incurvaria pirinella Junnilainen, Kaitila & Mutanen, 2020
[14] Incurvaria circulella (Zetterstedt, 1839)

in Junnilainen, Buchner, Kaitila & Mutanen, 2020. 

Incurvaria pirinella Junnilainen, Kaitila & Mutanen, sp. nov. is described from Bulgaria based on specimens collected by netting and artificial light from several low-elevation localities in Bulgaria. The species is morphologically and genetically most similar to I. triglavensis Hauder, 1912. Differences between these two species are present in external appearance and genitalia of both sexes. Additionally, I. pirinella shows a distance of 4.74% to its nearest neighbour I. triglavensis in the standard DNA barcoding marker (COI-5P). We provide preliminary observations of phylogenetic affinities of European Incurvaria and briefly discuss habitat preferences of some species. All species have distinct barcodes with minimum K2P divergences between species averaging 7.05% (range 1.2–12.8%). A world checklist of Incurvaria Haworth, 1828 is provided and DNA barcodes for all European species are here released. Finally, we document morphological variation in male genitalia within I. triglavensis Hauder, 1912.

Figures 3–5. Incurvaria pirinella habitus of adult. 3. Male (Holotype). 4. male (Paratype). Ilindenci road. Coll. Kaitila 5. Female (Paratype). Slavianka. Coll. Kaitila.
Figure 14. Incurvaria circulella male, Finland KiL. Muonio 7540:8362, 4.vii.2014, Marko, Anttoni & Nestori Mutanen leg., coll. Marko & Tomi Mutanen. 

Incurvaria pirinella Junnilainen, Kaitila & Mutanen, sp. nov.

Etymology: The name of the new species is derived from the Pirin mountain range, where the new species is widely distributed.

Considering similar forewing ground colour and markings, Incurvaria pirinella (Figs 3–5) is externally closest to I. circulella (Fig. 14), but is easy to separate from it by the dark grey-brown fringe and distinct white spot in the forewing fringe present in I. circulella. Incurvaria pirinella is also widely allopatric as I. circulella occurs only in northern latitudes in Europe, e.g. the northern part of Sweden and Finland.

Although I. triglavensis is rather variable externally, it is always easy to separate from I. pirinella based on its relatively narrow forewing shape, paler ground colour and differences in forewing markings (Figs 6–11); see details in Suppl. material 2.

Incurvaria pirinella is easy to separate externally from Scandinavian I. vetulella (Figs 12–13) by a white narrow dorsal spot situated 2/5 from base and extending more than halfway across the forewing in I. pirinella. North European I. vetulella also typically have a distinctly broader dorsal spot, sparser forewing scaling and usually a pale medial area in the fringe, which is always absent in I. pirinella.

Distribution: Known from four different localities in the south-west corner of Bulgaria around the Struma river valley and its adjacent regions, which all belong to the Blagoevgrad district and the Pirin mountain range. The elevational range is wide: 200–1200 m, at least.

 Jari Junnilainen, Peter Buchner, Jari-Pekka Kaitila and Marko Mutanen. 2020. Incurvaria pirinella sp. nov., A New Species of the vetulella species-group (Lepidoptera, Incurvariidae) from Bulgaria, with release of DNA Barcodes for European Species of IncurvariaNota Lepidopterologica. 42(1): 81-100. DOI: 10.3897/nl.42.13026


[Arachnida • 2020] A Survey of Phrurolithidae (Araneae) in southern Caucasus, Iran and Central Asia

Bosselaerius hyrcanicus, B. tajikistanicus, 
Phrurolithus luppovae Spassky, 1941,  P. pullatus Kulczyński, 1897 Phrurolithus azarkinae  
Zamani & Marusik, 2020

The spider family Phrurolithidae is revised in Azerbaijan, Iran and Tajikistan. The new genus Bosselaerius gen. n. is described to encompass three species: B. hyrcanicus sp. n. (type species, ♂ ♀, Azerbaijan, Iran), B. tajikistanicus sp. n. (♀, Tajikistan) and B. daoxianensis (Yin, Peng, Gong & Kim, 1997) comb. n. (♂, China). Furthermore, a new species of Phrurolithus C.L. Koch, 1839, namely P. azarkinae sp. n. (♂ ♀, Azerbaijan, Iran) is described, a redescription is provided for the poorly-known P. luppovae Spassky, 1941 (♂, Tajikistan), with its female being described for the first time, and P. pullatus Kulczyński, 1897 is recorded in Iran for the first time, representing the easternmost recorded locality for this species. Finally, 27 species of Chinese Phrurolithidae currently classified in Phrurolithus are transferred to Otacilia Thorell, 1897 on the basis of somatic characters and the morphology of the copulatory organs. Distributions of all treated species are mapped.

Keywords: Araneae, Aranei, spider, new genus, new species, new combination, Otacilia

Alireza Zamani and Yuri M. Marusik. 2020. A Survey of Phrurolithidae (Arachnida: Araneae) in southern Caucasus, Iran and Central Asia. Zootaxa. 4758(2); 311–329. DOI: 10.11646/zootaxa.4758.2.6 

[Herpetology • 2020] Uropeltis rajendrani • A New Species of Shieldtail Snake (Squamata: Uropeltidae) from Kolli Hill complex, southern Eastern Ghats, peninsular India

Uropeltis rajendrani  
Ganesh & Achyuthan, 2020

Rajendran’s Shieldtail Snake || DOI: 10.11609/jott.5680.12.4.15436-15442 

 We describe a new species of shieldtail (uropeltid) snake, Uropeltis rajendrani sp. nov., from the Kolli Hill complex of the southern Eastern Ghats in Tamil Nadu, India.  The new species belongs to the U. ceylanica group and is differentiated from related species in having 16–17:16–17:15–16 dorsal scale rows; 145–158 ventral scales; 8–11 pairs of subcaudals; dorsum uniform brown, anteriorly powdered with yellow mottling; venter brown, scales outlined with yellow.  This endemic species with a restricted range is known only from atop Kolli Hill complex, inhabiting higher elevation (> 900m) evergreen forests, where it is the only known member of this genus.

Keywords: Allopatric species, endemism, isolated massif, Uropeltis rajendrani sp. nov., Western Ghats.

 Live uncollected topotypes (adult and juvenile) – the Kolli Hill complex, southern Eastern Ghats, Tamil Nadu. 
photos: S.R. Ganesh.

Uropeltis rajendrani sp. nov.

Uropeltis cf. ceylanica (nec Cuvier, 1829) – Ganesh & Arumugam 2016

Etymology: Named in honour of Dr. Maria Viswasam Rajendran (2 Nov 1916–6 Aug 1993), ‘MVR’ for short, for his exhaustive studies on shieldtail snakes in Tamil Nadu, next only to Richard Henry Beddome and Frank Wall. Not only was he a professor of zoology at the St. Joseph’s College Palayamkottai (Tirunelveli, Tamil Nadu) but also the director of the Madras (now Chennai) Snake Park (Chennai, Tamil Nadu) during the early 1980s.

Common name: Rajendran’s Shieldtail Snake.

Type locality: Bodhamalai Hills near Salem and Namakkal District border, overlooking Panamarathupatti Town (...; 1,070m), Tamil Nadu State, peninsular India. 

Diagnosis: A species of Uropeltis from the Kolli Hill complex, characterized by having the following combination of characters: (1) caudal shield truncate, with a distinct thickened circumscribed concave disc; (2) part of rostral visible from above not distinctly longer than its distance from frontal; (3) rostral scale partially separating nasal scales; (4) snout obtusely rounded; (5) eye diameter 3/4th that of ocular shield; (6) dorsal scale rows 16–17:16–17:15–16; (7) ventral scales 145–158; (8) subcaudal scales 8–11 pairs; (9) dorsum deep brown, unpatterned, anteriorly with a few yellow speckles; (10) venter yellow, each scale edged with brown.  


S.R. Ganesh and N.S. Achyuthan. 2020. A New Species of Shieldtail Snake (Reptilia: Squamata: Uropeltidae) from Kolli Hill complex, southern Eastern Ghats, peninsular India. Journal of Threatened Taxa. 12(4); 15436–15442. DOI: 10.11609/jott.5680.12.4.15436-15442 

Sunday, March 29, 2020

[Entomology • 2020] Victrix svetlanae • A New Species of Bryophilinae (Lepidoptera, Noctuidae) from Far East of Russia

Victrix svetlanae 
Koshkin & Pekarsky, 2020

Victrix svetlanae sp. n. is described from Russian Far East, Khabarovsk Krai. The new species belongs to the subgenus Poliobrya Hampson, 1908. New species is most similar to V. umovii (Eversmann, 1846) and V. patula (Püngeler, 1907) but differs in both external and genital characteristics. This is the first record of the genus Victrix in the Far East.

Keywords: Lepidoptera, Noctuidae, Bryophilinae, Victrix, Poliobrya, new species, Russian Far East

Victrix svetlanae, adults.
Russia, Khabarovsk Krai, Verkhnebureinsky district, Bureinsky Nature Reserve.

3, holotype ♂, 6.VII.2016 (Coll. ZISP); 4, paratype ♂, 7.VII.2018 (Coll. EK);
5, paratype ♂, 11.VII.2018 (Coll. EK); 6, paratype ♂, 7.VII.2018 (Coll. OP);
7 & 8, paratypes ♀, 12.VII.2018 (Colls EK, OP). 

Victrix svetlanae Koshkin & Pekarsky sp. n.

Distribution. Bureinsky Nature Reserve (Russia, Khabarovsk Krai).

Etymology. The new species is dedicated to the memory of Svetlana Vladimirovna Koshkina (1963–2014), mother of the first author.

Evgenii S. Koshkin and Oleg Pekarsky. 2020. Victrix svetlanae sp. n., A New Species of Bryophilinae (Lepidoptera, Noctuidae) from Far East of Russia. Zootaxa. 4750(4); 585–590. DOI: 10.11646/zootaxa.4750.4.9  

[Herpetology • 2020] Systematics of the Boana semilineata Species Group (Anura: Hylidae), with A Description of Two New Species, Boana nigra & B. ventrimaculata, from Amazonian Ecuador

Boana nigra
Caminer & Ron, 2020

The combination of genetic and phenotypic characters for species delimitation has allowed the discovery of many undescribed species of Neotropical amphibians. In this study, we used DNA sequences (genes 12S, 16S, ND1 and COI) and morphologic, bioacoustic and environmental characters of the Boana semilineata group to evaluate their phylogenetic relationships and assess their species limits. In addition, we included DNA sequences of several species of Boana to explore cryptic diversity in other groups. We found three Confirmed Candidate Species (CCS) within the B. semilineata group. Holotype examination of Hyla appendiculata shows that it is a valid species that corresponds to one of the CCS, which is here transferred to Boana. We describe the two remaining CCS. Our phylogeny highlights a number of secondary but meaningful observations that deserve further investigation: (1) populations of B. pellucens from northern Ecuador are more closely related to B. rufitela from Panama than to other Ecuadorian populations of B. pellucens; (2) we report, for the first time, the phylogenetic relationships of B. rubracyla showing that it is closely related to B. rufitela and B. pellucens; and (3) B. cinerascens and B. punctata form two species complexes consisting of several unnamed highly divergent lineages. Each of these lineages likely represents an undescribed species.

Keywords: Amazon, amphibian, candidate species, cryptic diversity, phylogeny, taxonomy

Systematic accounts 

Boana appendiculata (Boulenger, 1882) comb. nov. 

Hyla appendiculata Boulenger, 1882.

 Proposed standard English name: Canelos treefrog. 
Proposed standard Spanish name: rana arbórea de Canelos

Distribution: Boana appendiculata occurs in the Amazon basin of Ecuador, Brazil and Colombia (Fig. 6). Localities with known elevation range from 14 to 1050 m above sea level. 

Boana nigra, QCAZ 61883 (SVL = 25.04 mm)

Boana nigra sp. nov. 

 Proposed standard English name: black-flanked treefrog. 
Proposed standard Spanish name: rana arbórea de flancos negros.

Etymology: The specific epithet nigra is a Latin adjective in the nominative case meaning black, and refers to the black coloration on the flanks of these frogs.

Distribution: Boana nigra occurs on the eastern Andean slopes of Ecuador. Localities with known elevation range from 910 to 1847 m a.s.l.

Boana ventrimaculata sp. nov.

Proposed standard English name: Yasuní treefrog. 
Proposed standard Spanish name: rana arbórea del Yasuní. 

Etymology: The specific name is derived from the Latin words ventriculus = belly, and macula = spot or stain, in reference to the brown blotches on the chest and belly of these frogs.

Distribution: Boana ventrimaculata inhabits the Amazon basin of Ecuador and Brazil (Fig. 6). Localities with known elevation range vary between 64 and 1035 m of elevation. 

Marcel A. Caminer and Santiago R. Ron. 2020. Systematics of the Boana semilineata Species Group (Anura: Hylidae), with A Description of Two New Species from Amazonian Ecuador. Zoological Journal of the Linnean Society. zlaa002. DOI: 10.1093/zoolinnean/zlaa002

[Mammalogy • 2020] Lasiurus arequipae • A New Species of Lasiurus (Chiroptera: Vespertilionidae) from southwestern Peru

Lasiurus arequipae 
Málaga, Díaz, Arias & Medina, 2020

Arequipa Cinnamon Red Bat | revista.ib.unam.mx
Murciélago acanelado de Arequipa || facebook.com/BrianMalagaTellez 

A new species within the genus Lasiurus is proposed from 3 specimens collected in the coastal desert and western slopes of southwestern Peru. Based on molecular and morphological evidence, the new species is related to Lasiurus reddish species (i.e., L. atratus, L. castaneus, L. blossevillii, and L. varius). Cytochrome b genetic divergence between the new species and the other species of the genus was high (> 9.4%). This new species, endemic to Peru, increases the known diversity of Lasiurus to 20 species. 

Keywords: Arequipa cinnamon red bat; Coastal desert; Phylogeny; Genetic divergence; Cytochrome b

Figure 1. Individual of Lasiurus arequipae sp. nov. (MUSE 21891) collected in Huatiapa, Castilla, Arequipa.


Order Chiroptera Blumenbach, 1779 
Family Vespertilionidae Gray, 1821 

Genus Lasiurus Gray, 1831 

Lasiurus arequipae sp. nov. Málaga, Díaz, Arias & Medina 
Murciélago acanelado de Arequipa
Arequipa Cinnamon Red Bat

Figure 2. Left: dorsal view of the body and wing membrane of Lasiurus arequipae sp. nov. (MUSA 21891) showing coloration patterns.
Right: dorsal, ventral, and lateral views of the skull and lateral views of mandible of the holotype (MUSA 21058). Scale bar = 5 mm).

Figure 3. Map of South America showing the distribution of reddish species of the genus Lasiurus:
Lasiurus arequipae sp. nov. (black triangles), L. atratus (green lines), L. blossevillii (blue symbols) and L. varius (red lines). Gray area corresponds to elevations above 2,000 m.

Figure 4. Habitat of Lasiurus arequipae sp. nov. (MUSE 21058 and MUSA 21891).

Etymology: the specific epithet "arequipae" is given in honor of the White City of Arequipa, located in the southwest of Peru, whose historical center was recognized as World Heritage by the United Nations Educational, Scientific and Cultural Organization (UNESCO) in November 2000. It should be noted that in the department of Arequipa find the deepest canyons in the world, canyons Cotahuasi and Colca, which define the ranges of distribution of various species of flora and fauna in the western slope of the Andes (Pearson, 1982).


Resumen: Se propone una nueva especie dentro del género Lasiurus a partir de 3 ejemplares recolectados en el desierto costero y vertiente occidental del sur de Perú. Basados en evidencia molecular y morfológica, Lasiurus sp. nov. está relacionada con especies rojizas del género Lasiurus (i.e., L. atratus, L. castenaeus, L. blossevillii y L. varius). La divergencia genética del gen citocromo b entre la nueva especie y las otras especies del género fueron altas (> 9.4%). Esta nueva especie, endémica de Perú, incrementa la diversidad conocida del género Lasiurus a 20 especies. 

Palabras clave: Murciélago acanelado de Arequipa; Desierto costero; Filogenia; Divergencia genética; Citocromo b 

Brian A. Málaga, Darwin R. Díaz, Sandra Arias and César E. Medina. 2020. Una especie nueva de Lasiurus (Chiroptera: Vespertilionidae) del suroeste de Perú [A new species of Lasiurus (Chiroptera: Vespertilionidae) from southwestern Peru]. Revista Mexicana de Biodiversidad. 91: e913096.  revista.ib.unam.mx/index.php/bio/article/view/3096/

[Entomology • 2020] Didymocorypha libaii New Record of Didymocorypha Wood-Mason (Mantodea, Eremiaphilidae) from China, with Description of A New High-altitude Wingless Mantis Species in Asia

Didymocorypha libaii
Wu & Liu, 2020

The genus Didymocorypha Wood-Mason, 1877 (Eremiaphilidae, Iridinae) has only been recorded in South Asia, including a sole species D. lanceolata (Fabricius). Here, we firstly extend its distribution to China, with description of one new species D. libaii sp. nov. Didymocorypha libaii sp. nov. lives in an area about 3000 meters above sea level on the southern slope of the Himalayas (Tibet in China), one of the highest-altitude inhabited areas of mantis in the Northern Hemisphere. It is also the first recorded Oriental mantis species in which both sexes are wingless. Life history of the new species, necessary illustrations and ecological images are provided. The distribution of the new Didymocorypha species is discussed and mapped.

Keywords: apterous mantis species, life history, new species, Oriental Region, taxonomy

Figure 1. Didymocorypha spp. body in dorsal view and ootheca.
A, C Male B female D oothecae.
A D. lanceolata (Fabricius) B–D Didymocorypha libaii sp. nov. (holotype and paratype).

Figure 2. Didymocorypha libaii sp. nov. adult female in its natural habitat.

Figure 3. Adult and nymph of Didymocorypha libaii sp. nov. in natural habitat.
A Adult male B nymphs C feeding adult female D copulating adults E ecological habitat.

Didymocorypha libaii Wu & Liu, sp. nov.

Diagnosis: The new species is distinguished from D. lanceolata by small body size, small and indistinct male ocelli, wingless male adults, comparatively large-sized genitalia, ventral phallomere without secondary distal process (sdp), additional obtuse tubercle on paa and different structure of afa (Fig. 6).

Distribution: China (Tibet: Gyirong County).

Etymology: The new species was named after Bai Li, who is a poet in the Tang dynasty of China and one of the most famous poets in Chinese history.

Chao Wu and Chun-Xiang Liu. 2020. New Record of Didymocorypha Wood-Mason (Mantodea, Eremiaphilidae) from China, with Description of A New High-altitude Wingless Mantis Species in Asia.  ZooKeys. 922: 51-64. DOI: 10.3897/zookeys.922.47987


[Arachnida • 2020] Seven New Species of Australian Peacock Spiders (Araneae: Salticidae: Euophryini: Maratus Karsch, 1878)

Maratus azureus 
Schubert, 2020

Seven new species of the Australian peacock spider genus Maratus Karsch, 1878 are described from Victoria, South Australia, and Western Australia: Maratus azureus sp. nov., Maratus constellatus sp. nov., Maratus inaquosus sp. nov., Maratus laurenae sp. nov., Maratus noggerup sp. nov., Maratus suae sp. nov., and Maratus volpei sp. nov.

Keywords: Araneae, salticid, euophryine, jumping spider, taxonomy, systematics, courtship, display, Bush Blitz, Maratus azureus, Maratus constellatus, Maratus inaquosus, Maratus laurenae, Maratus noggerup, Maratus suae, Maratus volpei

Maratus inaquosus 

Maratus volpei  

Joseph Schubert. 2020. Seven New Species of Australian Peacock Spiders (Araneae: Salticidae: Euophryini: Maratus Karsch, 1878). Zootaxa. 4758(1); 1–44. DOI: 10.11646/zootaxa.4758.1.1

Seven new species of colorful Peacock Spider join the dance party 

[Mammalogy • 2020] Philippine Bats of the Genus Kerivoula (Chiroptera: Vespertilionidae): Overview and Assessment of Variation in K. pellucida and K. whiteheadi

Kerivoula pellucida  Waterhouse 1854

Kerivoula whiteheadi Thomas, 1894

in Sedlock, Heaney, Balete & Ruedi, 2020. 

Bats of the genus Kerivoula (Mammalia, Chiroptera) are widespread in the Philippines with four reported species, but have been poorly known due to a paucity of specimens. We provide the first molecular phylogeny for Philippine Kerivoula, which supports the existence of four distinct clades that we treat as species (K. hardwickii, K. papillosa, K. pellucida, and K. whiteheadi); these four overlap broadly geographically. Each of these may be recognized on the basis of cytochrome b sequences and external and craniodental morphology. Detailed examination of K. pellucida shows little geographic differentiation within the Philippines, but they differ subtly from those on the Sunda Shelf. We consider K. whiteheadi to be composed of four recognizable clades, each restricted to a geographic region within the Philippines. We consider K. bicolor, from peninsular Thailand, and K. pusilla, from Borneo, to be distinct from K. whiteheadi. Our data indicate the presence of two species within the Philippines currently lumped as K. hardwickii; further study of these is needed. A calibrated phylogeny suggests that Kerivoula began arriving in the Philippines about 10 MYA, with each of the four current lineages arriving independently.

 Keywords: Mammalia, biogeography, cytochrome b, echolocation, ecology, morphology, phylogeny, Southeast Asia

FIGURE 5. Photograph composite of Kerivoula pellucida showing the nearly translucent wing membranes (A), pelage color, and ears with tapered tragus (B), membrane attachment on foot and membrane with male gland (C).
 A: Bohol I. (no voucher); B–C: FMNH 205817, Cebu I. 

FIGURE 12. Photo composite of Kerivoula whiteheadi venter with membrane attachment to foot and bicolor pelage (A), dorsum with fur-lined legs and feet (B), head with pointed tragus and high forehead (C).
 A and C: FMNH 205818, Cebu I.; B: FMNH 191330, Luzon I. 

Kerivoula pellucida Waterhouse 1854

Distribution. Borneo, Java, the Malay Peninsula, the Philippines (Cebu, Jolo, Mindanao, Mindoro, and Palawan), and Siberut (Fig. 2; see also Corbet & Hill 1992: 154).

Kerivoula whiteheadi Thomas, 1894

Distribution. Endemic to the Philippines (Bohol, Camguin Norte, Cebu, Lubang, Luzon, Mindanao, Mindoro, Palawan, Sicogon, Siquijor and Tumaguin; Fig. 2). The type locality “Molino” probably refers to a currently nonexistent village on the east bank of the Ilagan River downstream from the city of San Mariano (M. van Weerd, pers. com., 6 May 2019).

Jodi L. Sedlock, Lawrence R. Heaney, Danilo S. Balete and Manuel Ruedi. 2020. Philippine Bats of the Genus Kerivoula (Chiroptera: Vespertilionidae): Overview and Assessment of Variation in K. pellucida and K. whiteheadiZootaxa. 4755(3); 454–490. DOI: 10.11646/zootaxa.4755.3.2

[Botany • 2020] Dischidia phuphanensis (Apocynaceae: Asclepiadoideae) • A New Species of Dischidia from North-eastern Thailand

Dischidia phuphanensis Chatan & Promprom

in Promprom & Chatan, 2020. 


Dischidia phuphanensis Chatan & Promprom, a new species from north-eastern Thailand, is described and illustrated. The new species is similar to D. tonkinensis Costantin, but is distinguished by the shape of its leaves, the apices of the staminal corona lobes, the colour of the corolla and the absence of a corolline corona. The distinguishing characters of similar species are discussed. A key for the identification of those species in Thailand without pitcher-like leaves is provided.

Keywords: Marsdenieae, plant diversity, taxonomy

Figure 2. Dischidia phuphanensis Chatan & Promprom
A Branch with leaves and inflorescences B bud C flower D dissected flower with half of corolla removed E calyx from abaxial side F gynostegium (side view), with coronal lobes removed G gynostegium (from above) H pollinarium I pistil J pistil (style-head removed) K follicle L seed 
A–J drawn by Wannachai Chatan from W. Chatan 2489, and K, L from W. Chatan 2904.

Figure 1. Dischidia phuphanensis Chatan & Promprom
A Plant climbing on rock B plant climbing on branches of shrub 2–3 m tall C branches and leaves D inflorescence E follicle (nearly mature) F dehiscent follicle. 
Photographed by Wannachai Chatan from W. Chatan 2489 (A–D) and W. Chatan 2904 (E, F). 

Dischidia phuphanensis Chatan & Promprom, sp. nov.

Diagnosis: Dischidia phuphanensis is most similar to D. tonkinensis, but the new species differs from the latter in its elliptic or narrowly elliptic or slightly oblanceolate leaves (leaves in D. tonkinensis are ovate to ovate elliptic, rarely obovate), apex of corona lobes obtuse (with tips pointing downward in D. tonkinensis), yellow base of the corolla tube and light yellow or white apices of the lobes (white or orange-yellow corolla tube and lobes in D. tonkinensis) and the absence of a corolline corona (corolline corona present in D. tonkinensis). (Figures 1, 2)

Distribution: The new species is endemic to Thailand and is known only from the type locality, Phu Pha Yol National Park, Sakon Nakhon Province, north-eastern Thailand (Figure 3).

Ecology: This new species grows in both slightly open and in shaded areas in mixed deciduous forest at an elevation of 300–400 m.

Etymology: The specific epithet of Dischidia phuphanensis refers to its type locality, the Phuphan mountain range.

Vernacular name: Thao Rag Noi - เถารักน้อย

 Wilawan Promprom and Wannachai Chatan. 2020. A New Species of Dischidia (Apocynaceae, Asclepiadoideae) from North-eastern Thailand.  PhytoKeys. 144: 23-30. DOI: 10.3897/phytokeys.144.47977