Rhinocypha perforata

Scientific name: Rhinocypha perforata (Percheron, 1835)

Family: Chlorocyphidae

Thai name: แมลงปอเข็มน้ำตกสั้นลายจุด, แมลงปอเข็มหางโป่งจุดฟ้า

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adult male

This time of the year, Rhinocypha perforata is on wing. Strangely enough, there is no any R. perforata in my study area, but about 30-50 kilometers far from there (both in the right and left), it's abundant.  In these two areas, there are also R. fenestrella and R. biforata living together.

young male

Young male is black and greenish yellow. Side of synthorax is mostly greenish yellow and has a unique markings. S2-9 has a waterdrop markings.  Wings are ochre. The greenish yellow area and markings will turn to bright blue as it matures. An apical half of wings are darken. Sythorax markings of female are similar to the male. Wings are clear and white stigmas. Abdomen has yellow human-leg markings on each abdominal segment.

female

You can see the damselfly in lowland (< 500 meter a.s.l.) all the year but between February-November in the North.