Last Updated on Wednesday, 07 September, 2022 07:09:01 AM


Damselflies of Borneo  >  Family Coenagrionidae 細蟌科  >  Onychargia atrocyana (Selys, 1865) 藍彩琵蟌


Onychargia atrocyana (Selys, 1865) 藍彩琵蟌
Onychargia atrocyana
藍彩琵蟌
This is the only species in Borneo in the Genus Onychargia
 

Found in Asia: Bangladesh, China, Hong Kong, Indonesia, India, Sri Lanka, Myanmar, Malaysia, Philippines, Peninsular Malaysia, Thailand, Viet Nam
 


An immature male Onychargia atrocyana
An immature male Onychargia atrocyana



An immature male Onychargia atrocyana perching on a sun lighted tip of a leave just couple of feet above a grassy drain.

This species is rarely seen in Sabah.
 



Secondary genitalia of above matured male Onychargia atrocyana (Selys, 1865). Onychargia atrocyana is one of the most hairy damselfly in Sabah. Here you can see long hairs on segment 2. Usually damselflies have only short fur on abdomens.



Onychargia atrocyana is hairy not only on upper and lower thorax, long soft hairs also cover the face and head. Most other damselflies have only short fur.



The Matured male Onychargia atrocyana  is pure black with metallic deep blue on the upper part of thorax. Abdomen fine and thin but the throex is robust build.
 

More about male Onychargia atrocyana



Wings of a  female Onychargia atrocyana


Ovipositor of a female Onychargia atrocyana
Ovipositor of a female Onychargia atrocyana

♀30mm
1- A paired Valves with stylus
2- A cutting Basal blade
A pair of Cerci (Anal appendage)
2017-05-30 SG TAWAU
Ref: Page 81 of A GUIDE TO THE DRAGONFLIES OF BORNEO by A.G. Orr
 


Onychargia atrocyana 藍彩琵蟌 Juvenile Male and Matured Female looks alike


Here are index to damselflies sorted according to colour for our quick identification:

1- GREEN damselflies of Sabah, Borneo
2- BLUE damselflies
3- RED damselflies
4- ORANGE damselflies


Out of the global 10 families of damselflies, the following 6 families  are found in Borneo Island :

01- Family Calopterygidae 色蟌科
02- Family Chlorocyphidae 鼻蟌科
03- Family Coenagrionidae 細蟌科
04- Family Euphaeidae 溪蟌科
05- Family Lestidae 絲蟌科
06- Family Protoneuridae 原蟌科

RELATED  TOPICS



HEAD of Damselflies

Damselfly head include :
1- compound eyes,
2- ocelli,
3- antennae,
4- mouth structures


Common dragonflies in Borneo Island
Dragonflies of Borneo

"With 275 named species so far recorded in Borneo, the island has one of the richest and most exciting dragonfly faunas in the world. More than 40% of species occur nowhere else, making it the most distinctive sub-region of Sundaland." A Guide to the Dragonflies of Borneo by Albert G. Orr
 


GO FURTHER


FLORA
Ficus subgelderi 淡金榕
Fig trees of Sabah

Borneo has 150 species of wild fig trees. Most of them are found in forests of Sabah.


FISHERIES
Tiger Prawn Farms in Tawau
Tiger Prawn Farms in Tawau

Prawn farming is a main commercial activities in Tawau. Spawners from Tawau are graded the best in Malaysia. For decades, Tawau has been exporting high-grade tiger prawns to several countries such as Korea, Japan, Taiwan, China, Vietnam, Singapore, Egypt and Australia.


GUIDE TO COMMON SPIDERS IN BORNEO ISLAND
A Guide to Common Spiders in BORNEO ISLAND





Web Analytics
Damselflies of Borneo