32. Orthetrum triangulare (Selys, 1878)

Orthetrum triangulare (Selys, 1878)

Number: 32

Family: Libellulidae

Genus: Orthetrum 

Species: Orthetrum triangulare (Selys, 1878)

Common name: N/A 

Habitat: Streams, forest patches

Distribution: Sylhet

Abundance: Rare

Flight season: March-April

Orthetrum triangulare is one of the six Orthetrum species found in Bangladesh.

                                                            Male

The male is black and white species. The thorax is black, abdominal segments 1-7 are bluish, segments 8-10 are black.

Female

The female are yellow in color, broad black antehumeral stripe present and abdominal 8-10 are black  which are the signature of the species.

I have sighted the species from the forest patches of the north eastern forest of Bangladesh.