Rhinocypha biforata

Scientific name: Rhinocypha biforata Selys, 1859

Family: Chlorocyphidae

Thai name: แมลงปอเข็มน้ำตกสั้นวงม่วง, แมลงปอเข็มน้ำตกปลายลาย

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adult male

Small and stout damselflies found in the stream is genus Rhinocypha (World list of Odonata (Feb. 2009) include Heliocypha and Aristocypha in this genus). I personally call it "Big Nose". Six species are recorded in Thailand. R. biforata is the commonest species found around the stream.

young male

Male is black body with blue markings. Apical third of hindwing is black with iridescent spot. Female has synthoracic markings similar to the male and is duller in coloration.

female

This species found throughout the country and all year.