Dragonflies and damselflies (Odonata) are a group of aesthetic aquatic insects. Over 420 species of Odonata have been recorded for Malaysia (Peninsular Malaysia, Sabah and Sarawak). They are waiting for me to explore.
The blue markings of the male individuals of Pseudagrion australasiae and Pseudagrion microcephalumare quite similar to each other. However, Pseudagrion australasiae is slightly larger than Pseudagrion microcephalum. Apart from that, their anal appendages are different as shown in the diagram below:
Anal appendages (left lateral view). Top is Pseudagrion australasiae and bottom is Pseudagrion microcephalum.
Young male Crocothemis servilia is yellow in colour. On the other hand, the matured male is red in colour. Click here to see the matured male of Crocothemis servilia.