Saturday, May 29, 2010
Archibasis incisura is a blue "large" (hw 22-24 mm) damselfly species. There are three blue Archibasis species in Peninsular Malaysia - A. melanocyana, A. incisura and A. rebeccae. In order to differentiate them confidently, one has to inspect their tail (anal appendages) closely. Archibasis incisura has a notch on its superior anal appendages.
a male Archibasis incisura lateral view of the anal appendages of a male Archibasis incisura