[Entomology • 2026] Calicnemia arunachala, Ca. naga, Ca. mimumkoa, Coeliccia magna, ... • Six New Species of Calicnemia Strand, 1926 and One New Species of Coeliccia Kirby, 1890 (Odonata: Zygoptera: Platycnemididae) from northeastern India

 Calicnemia arunachala  &  C. mimumkoa 

Sawant, Joshi & Kunte, 

in Sawant, Joshi, Pawar, Khan, Nawge et Kunte, 2026. 

DOI: doi.org/10.11646/zootaxa.5760.4.1 

Researchgate.net/publication/401210423  

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Abstract

We erect six new species of the genus Calicnemia Strand, 1926, namely, Ca. ardena sp. nov., Ca. arunachala sp. nov., Ca. flavovittata sp. nov., Ca. mimumkoa sp. nov., Ca. naga sp. nov. and Ca. rubromacula sp. nov.; and one new species of Coeliccia Kirby, 1890, Co. magna sp. nov., from northeastern India. The new Calicnemia spp. are distinguished based on the structure of the genital ligula, colouration patterns of the thorax and abdomen, and the shape of caudal appendages. Based on the morphology of the genital ligula, we propose a third species group within Calicnemia, in addition to the two previously recognised species groups. This new species group accommodates Ca. ardena sp. nov. and Ca. rubromacula sp. nov., which possess short, bifurcated genital filaments that do not align with the diagnostic characteristics of the existing species groups. Additionally, Ca. erythromelas (Selys, 1891) previously reported from India is shown to be misidentified, and the Indian material is identified as Ca. naga sp. nov. Updated identification keys for all known Calicnemia males are provided, along with detailed illustrations of diagnostic features. Coeliccia magna sp. nov., erected from Arunachal Pradesh, is distinguished from congeners by its larger body size, complete blue antehumeral stripes, and distinct male and female morphological features. We further provide lateral thoracic illustrations of Coeliccia spp.

Odonata, Arunachal Pradesh, identification key, new species descriptions, Siang, taxonomy

 Calicnemia ardena sp. nov., Ca. arunachala sp. nov., 

Ca. flavovittata sp. nov., Ca. mimumkoa sp. nov., 

Ca. naga sp. nov., Ca. rubromacula sp. nov. 

Coeliccia magna sp. nov. 

Dattaprasad SAWANT, SHANTANU JOSHI, UJWALA PAWAR, FAHIM KHAN, VIRAJ NAWGE and KRUSHNAMEGH KUNTE. 2026. Six New Species of Calicnemia Strand, 1926 and One New Species of Coeliccia Kirby, 1890 (Odonata: Zygoptera: Platycnemididae) from northeastern India.  Zootaxa. 5760(4); 401-449. DOI: doi.org/10.11646/zootaxa.5760.4.1 [2026-02-25]

 Researchgate.net/publication/401210423_Six_new_species_of_Calicnemia_et_Coeliccia_from_northeastern_India

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[Entomology • 2025] Coeliccia sirindhornae • A New Damselfly (Odonata: Platycnemididae) from Northwest Thailand

Coeliccia sirindhornae

Makbun, Phan, Ignatius & Keetapithchayakul, 2025

 Tropical Natural History. Suppl. 8 

แมลงปอเข็มท้องยาวเทพรัตน์  ||  DOI: doi.org/10.58837/tnh.25.8.266860 

photographed by Noppadon Makbun

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Abstract

A new species of the genus Coeliccia Kirby, 1890, C. sirindhornae sp. nov., is described based on specimens of both sexes collected from Kanchanaburi Province, Thailand. This species can be differentiated from its congeners by its unique combination of morphological characters, including the shape of antehumeral stripe, the structure and pattern of prothorax, and the shape of anal appendages in both sexes, and the markings on the terminal abdominal segments in female.

Keywords: Damselfly, new species, Zygoptera, Kanchanaburi, Coeliccia

Coeliccia sirindhornae sp. nov. A. Holotype ♂. B. Paratype ♀.

Coeliccia sirindhornae sp. nov. 

แมลงปอเข็มท้องยาวเทพรัตน์   

Coeliccia sirindhornae sp. nov., in typical location.
A. Male. B. Female.
Kanchanaburi, Sangkhla Buri, Prangphle, 2–iv–2017

 photographed by Noppadon Makbun

Noppadon Makbun, Quoc Toan Phan, Kaewpawika Jitthamma Ignatius and Tosaphol Saetung Keetapithchayakul. 2025. Coeliccia sirindhornae sp. nov., A New Damselfly (Odonata: Platycnemididae) from Northwest Thailand.  Tropical Natural History. Suppl. 8;  415-425. DOI: doi.org/10.58837/tnh.25.8.266860 

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[Entomology • 2025] Onychargia hungeri • Notes on the Genus Onychargia Selys, 1865 (Odonata: Zygoptera: Platycnemididae) with Description A New Species from southern Vietnam

 

 Onychargia hungeri 

Tran, Huong & Phan, 2025

 

DOI: doi.org/10.11646/zootaxa.5729.4.2 

  facebook.com: Minh Khang TRAN 

Abstract

This study updates the distribution and provides notes on the habitat of three species of the genus Onychargia Selys, 1865 in Vietnam, including the description of a new species, Onychargia hungeri sp. nov. (holotype ♂, 10.52238° N, 107.47591° E, altitude 41 m, Binh Chau-Phuoc Buu Nature Reserve, Ho Chi Minh City, southern Vietnam), which is described based on male and female specimens. The new species can be easily distinguished from two other congeners by having smaller body size, U-shaped pruinosity on male’s synthorax and differences in the male’s appendages structures.

Odonata, new species, damselfly, swamps, coastal forests, Vietnam

Onychargia hungeri sp. nov.

Minh Khang TRAN, Le Thi Thu HUONG and Quoc Toan PHAN. 2025. Notes on the Genus Onychargia Selys, 1865 (Odonata: Zygoptera: Platycnemididae) with Description of O. hungeri sp. nov. from southern Vietnam.  Zootaxa. 5729(4); 519-534. DOI: doi.org/10.11646/zootaxa.5729.4.2 [2025-12-17]

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[Entomology • 2024] Prodasineura sangkhla • A New Damselfly (Odonata: Platycnemididae) from western Thailand

 

Prodasineura sangkhla

Keetapithchayakul, Makbun, Ignatius & Phan, 2024

 

แมลงปอเข็มท้องเข็มสังขละ  ||  DOI: doi.org/10.11646/zootaxa.5551.1.5

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Abstract

Prodasineura sangkhla sp. nov. is described from the Takhian Thong waterfall near the Thai-Myanmar border, Kanchanaburi Province, Thailand. It differs from all other species of Prodasineura Cowley, 1934 by the combination of the characters including white pruinescence on prothorax, synthorax and some parts of legs, blue markings on S10 and anal appendages, shape of anal appendages in males, and shape of occipital band and posterior process of posterior lobe in females.

Odonata, dragonfly, Zygoptera, new species, morphology

Prodasineura sangkhla sp. nov.

Tosaphol Saetung Keetapithchayakul, Noppadon Makbun, Kaewpawika Jitthamma Ignatius, Quoc Toan Phan. 2024. Prodasineura sangkhla sp. nov., A New Damselfly from western Thailand (Odonata: Platycnemididae). Zootaxa. 5551(1); 131-140. DOI: doi.org/10.11646/zootaxa.5551.1.5

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[News] แมลงปอเข็มท้องเข็มสังขละ (Prodasineura sangkhla) แมลงปอชนิดใหม่ชนิดแรกและชนิดส่งท้ายปี 2024

แมลงปอเข็มท้องเข็มสังขละได้รับการบรรยายเป็นชนิดใหม่สด ๆ ร้อน ๆ วันนี้ในวารสาร Zootaxa ครับ

คณะผู้บรรยายค้นพบแมลงปอเข็มชนิดนี้พร้อม ๆ กับแมลงปอเข็มท้องเข็มชนิดอื่น ๆ อีก 3 ชนิดคือ แมลงปอเข็มท้องเข็มดำ (Prodasineura autumnalis) แมลงปอเข็มท้องเข็มเอราวัณ (P. laidlawii) และแมลงปอเข็มท้องเข็มเสี้ยวส้ม ฟอร์มตะวันตก (P. sp. [nec. verticalis]) แต่ด้วยลักษณะอันโดดเด่นของตัวผู้ ทำให้เราแยกแมลงปอเข็มท้องเข็มสังขละได้ไม่ยาก กล่าวคือ อกและโคนท้องที่มีสีขาว และปลายท้องและรยางค์ปลายท้องที่มีสีฟ้า แต่สำหรับตัวเมีย หากมองด้วยตาเปล่า อาจจะแยกได้ยาก เพราะมีลายสีเหลืองสลับดำเหมือนกันหมด ต้องมานั่งจ้องลักษณะอกปล้องแรก (หรือที่เรียกกันง่าย ๆ ว่า คอ) และจำนวนหนามที่อยู่ด้านล่างของปลายรยางค์ปลายท้อง ถึงจะสามารถจำแนกได้อย่างถูกต้องแม่นยำครับ

แมลงปอเข็มชนิดนี้พบเกาะตามปลายใบไม้และกิ่งไม้เหนือลำธารที่อำเภอสังขละบุรี จังหวัดกาญจนบุรี และคาดการณ์ว่าน่าจะเจอทางฝั่งประเทศเมียนมาด้วยเช่นกัน เพราะจุดที่เจอมันอยู่ใกล้ชายแดนครับ

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A new species of genus Prodasineura, P. sangkhla, was described from Sangkhla Buri, Kanchanaburi Province. The description was published in Zootaxa today.

This new species co-occurs with other three members of the genus, that is P. autumnalis, P. laidlawii and P. sp. [nec. verticalis]. With white pruinosed thorax and blue abdomenal tip, males of P. sangkhla is easily differentiated from those species. Unlike the males, the general appearance of the females are similar to the congeners found in the area but you need to look at shape of prothorax and number of ventral spine on cerci for making an accurate ID.

Prodasineura sangkhla was spotted perching on leaf or twig along the stream in Sangkhla, Kanchanaburi Province and expected to be found in nearby area in Myanmar.

[Entomology • 2024] Melanoneura agasthyamalaica • A New Species of Melanoneura (Odonata: Zygoptera: Platycnemididae) from the Western Ghats, India

 

Melanoneura agasthyamalaica Chandran, Chandran, Jose & Koparde, 

in V. Chandran, R. Chandran, Jose, Payra et Koparde, 2024.

Agasthyamalai bambootail  ||  www.biotaxa.org/ijo/article/view/86296

 Researchgate.net/publication/384741197

 

Abstract

Melanoneura Fraser, 1922 is a genus of damselflies which was, to date, regarded as monotypic. It is represented by the nominate species, Melanoneura bilineata Fraser, 1922 which is endemic to the Western Ghats in India. We describe the population of Melanoneura in the Agasthyamalai landscape of the Western Ghats as a species new to science based on differences in the structure of male cerci, mesostigmal plates, genital ligulae, and the structure and marking of the prothorax. Subtle differences in body markings are also documented. Further, we demonstrate a significant genetic distance (7.2–7.4%) between the new species and M. bilineata, based on mitochondrial Cytochrome Oxidase I analysis. Our study combines morphological and genetic evidence to describe a new species belonging to the genus Melanoneura, cancelling its monotypic nature.

 

Keywords: Zygoptera, bambootail, biodiversity, damselfly, dragonfly, endemic, monotypic, new species, taxonomy

Order Odonata Fabricius, 1793

Suborder Zygoptera Selys, 1854

Superfamily Coenagrionoidea Kirby, 1890

Family Platycnemididae Jacobson and Bianchi, 1905

Genus Melanoneura Fraser, 1922

Type species: Melanoneura bilineata Fraser, 1922

Melanoneura agasthyamalaica sp. n. ♂ in habitat.

Melanoneura agasthyamalaica Chandran, Chandran, Jose & Koparde sp. n.

Diagnosis: Male Melanoneura agasthyamalaica sp. n. can be distinguished from its only congener, M. bilineata, by the following features: posterior lobe of prothorax with a more rounded posterior margin (posterior lobe of prothorax with a relatively straight posterior margin in M. bilineata). Mesostigmal plates flat (mesostigmal plates curled at the tips in M. bilineata) (Figures 3 & 4). Pt in FW squarish, covering just over one cell (Pt in all wings rectangular, covering two cells in M. bilineata) (Figure 5). Cerci more elongated, as long as paraprocts, with a more pointed spine (cerci shorter, falling just short of paraprocts, with a more rounded spine in M. bilineata) (Figures 6 & 7). The outer processes of the distal segments of genital ligula are spatulate in both taxa. The inner processes are shallowly divided in the new taxon and deeply divided in M. bilineata (Figures 8 & 9). The following differences in body markings are also seen, but these could be ....

Etymology: The species epithet agasthyamalaica is derived from the Agasthyamalai Biosphere Reserve of the Western Ghats, the landscape from where this species is first described.

Habitat of Melanoneura agasthyamalaica sp. n.

  

A. Vivek Chandran, Reji Chandran, Subin Jose, Arajush Payra and Pankaj Koparde. 2024. Melanoneura agasthyamalaica sp. n. (Odonata, Platycnemididae) from the Western Ghats, India. International Journal of Odonatology. 27; 213-226. www.biotaxa.org/ijo/article/view/86296

DOI: doi.org/10.48156/1388.2024.1917298 

  Researchgate.net/publication/384741197_Melanoneura_agasthyamalaica_sp_n_from_the_Western_Ghats_India

[Entomology • 2020] Coeliccia natgeo • A New Species of Coeliccia (Odonata: Zygoptera: Platycnemididae) from Central Vietnam with Keys to the Males and Females of the hayashii-group

 

Coeliccia natgeo

Phan, Ngo, Toan & Tuan, 2020

DOI: 10.11646/zootaxa.4896.1.4 

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Abstract

Coeliccia natgeo sp. nov. is described from central Vietnam (holotype ♂, 18._ N, 105._ E, Khe Nhop, Vu Quang National Park, Ha Tinh Province, deposited in the Zoological Collection of Duy Tan University, Da Nang City, Vietnam). The new species differs from other members of the hayashii-group by males lacking antehumeral stripes, spots and pruinosity on the synthorax and female having the central part of the posterior pronotal lobe reduced to a small projection. Keys to the males and females of the hayashii-group are provided.

Keywords: Odonata, Platycnemididae, Coeliccia hayashii-group, Coeliccia natgeo, new species, Vu Quang National Park, Pu Mat National Park, Vietnam

 Coeliccia natgeo Phan, Ngo, Toan & Tuan, 2020

 Quoc Toan Phan, Quoc Phu Ngo, Thai Canh Toan and Vo Anh Tuan. 2020. Description of Coeliccia natgeo sp. nov. from Central Vietnam with Keys to the Males and Females of the hayashii-group (Odonata: Zygoptera: Platycnemididae). Zootaxa. 4896(1); 96–104. DOI: 10.11646/zootaxa.4896.1.4

Công bố một loài chuồn chuồn kim mới, Coeliccia natgeo Phan, Ngo, Toan & Tuan, 2020 từ Vườn quốc gia Vũ Quang và Pù Mát, miền Trung Việt Nam. Loài côn trùng mới này có đặc điểm con đực có phấn trắng ở ngực trước (prothorax) và không có sọc hay vạch vàng ở ngực giữa (synthorax), và cấu trúc tấm sau của ngực trước con cái tiêu giảm thành một mấu lồi rất nhỏ. 

...

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