Aciagrion pallidum

Scientific name: Aciagrion pallidum Selys, 1891

Family: Coenagrionidae

Thai name: แมลงปอเข็มเรียวสามสี

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What I use to tell it's the begining of the winter season is Aciagrion pallidum. Personally, I always found this species in early winter until the end of the season. There are 6 species of Aciagrion recorded in Thailand and recently, I found another one species which is very similar to A. pallidum in upland area. I still don't know its identity. This genus is really in need to revision.

male

Male is blue body with red stripes. S8-10 and caudal appendages have two colors: red and white as you see in photos. Female is similar to the male but paler. S8-10 and caudal appendages are also paler.

female

This species is widespread species and common in dry season. You can see this damselfly between October-April.