33. Pseudagrion rubriceps (Selys, 1876)

Pseudagrion rubriceps (Selys, 1876)

Number: 33

Family: Coenagrionidae 

Genus: Pseudagrion   

Species: Pseudagrion rubriceps (Selys, 1876)
Common name: Saffron-faced blue dart

Habitat: Lakes, ponds, streams

Distribution: All over the country

Abundance: Common 

Flight season: January- December

This blue damselflies are exquisite, marvelous and spectacular flying creature. Quite abundant in Bangladesh.

They are often sighted at the edge of the ponds, paddy fields and lakes. 

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. 

31. Orthetrum sabina (Drury, 1770)

Orthetrum sabina (Drury, 1773)

Number: 31

Family: Libellulidae

Genus: Orthetrum 

Species: Orthetrum sabina (Drury, 1770)

Common name: Green Marsh Hawk 

Habitat: Lakes, ponds, forest patches

Distribution: All over the country

Abundance: Common 

Flight season: All year round

Orthetrum sabina is the most abundant and most common dragonflies of Bangladesh. Found in diverse habitat, all over the country and all year round. 

                                                                   Male

The spectacular dragonflies are green, white and black in color. The eyes are green, thorax are green and yellow, wings are transparent, pterostigma and legs are black, segments 7-10 are completely black, anal appendages are white.

Orthretrum sabina are very aggressive and I have sighted the species feeding on butterflies, dragonflies and damselflies.    

30. Rhyothemis variegata (Linnaeus, 1763)

Rhyothemis variegata (Linnaeus, 1763)

Number: 30

Family: Libellulidae

Genus: Rhyothemis  

Species: Rhyothemis variegata (Linnaeus, 1763)

Common name: Common picture wing

Habitat: Lakes and ponds

Distribution: All over the country

Abundance: Common 

Flight season: February - December

Rhyothemis variegata is one of the common and most abundant dragonflies of Bangladesh. The species is found all over the country and almost all year round. 

                                                                 Male

Rhyothemis variegata is the only Rhyothemis species found in Bangladesh. The species can be distinguish easily from the other species by its coloration pattern of the wings. The male has golden wings with black colored patches in the fore and hind wing, wing tips are black, abdomen , thorax and legs are black.   

Female

The females are similar to males, however the coloration in the wing excelled the coloration of the wing of male. Wing tips are transperant and anal appendages are typical Libellulidae female like; this two criterion distinguish female from male. 

   

29. Ceriagrion coromandelianum (Fabricius, 1798)

Ceriagrion coromandelianum (Fabricius, 1798)

Number: 27

Family: Coenagrionidae 

Genus: Ceriagrion   

Species: Ceriagrion coromandelianum (Fabricius, 1798)

Common name: Coromandel Marsh dart

Habitat: Lakes, ponds, rivers

Distribution: All over the country

Abundance: Common 

Flight season: January- December

Ceriagrion coromandelianum is the most common and abundant damselflies of Bangladesh

                                                               Male

The males' are yellow,  eyes and thorax are green. Observed commonly near the pond and can be identified easily by their yellow color.

Female

The females are less yellow than male, thorax and eyes are green. Anal appendages are female like and easiest way to distinguish.

I have observed  the matting of this species several times in different period of the year.

This species is very aggressive, often seen feeding on smaller damselflies. 

  

28. Trithemis pallidinervis (Kirby, 1889)

Trithemis pallidinervis (Kirby, 1889)

Number: 28

Family: Libellulidae

Genus: Trithemis  

Species: Trithemis pallidinervis (Kirby, 1889)

Common name: Long Legged Marsh glider

Habitat: Lakes, ponds and riverside

Distribution: Dhaka, Sylhet, Chittagong 

Abundance: Common 

Flight season: March - August

                                             

Male

As the common name suggests, long -legged marsh glider, has long legs, black in color. The head is pinkish.   

The thorax is chocolate color, wings are transparent, pterostigma black, amber wing in the base of wings. 

Abdominal segments are black with white dorsal bands, S 8-10 are completely black, base of the anal appendages are white while tips are black. 

Female

The females are very similar to male. Head is more greenish than male, also the thorax is more yellowish.

Anal appendages are good way to you distinguish female from male. Anal appendages are white.   

  

27. Diplacodes trivialis (Rambur, 1842)

Diplacodes trivialis (Rambur, 1842)

Number: 27

Family: Libellulidae

Genus: Diplacodes  

Species: Diplacodes trivialis (Rambur, 1842)

Common name: Ground skimmer

Habitat: Lakes and ponds

Distribution: Dhaka, Sylhet, Chittagong 

Abundance: Common 

Flight season: March - November

Diplacodes trivialis is one of the most common dragonflies of Bangladesh. Unlike many other species they spend most of their time outside of the water bodies. They like to rest and fly near to the ground.

                                                                  Male

The males are bluish black. The thorax is blue as well as the abdominal segments 1-8. Segments 9-10 are black, wings transparent, legs black and anal appendages are white 

Female

The females has greenish thorax and abdomnal segments 1-3. Abdominal segments 4-8 has white lateral band, segments 9-10 are black, wings transparent, legs black anal appendages are black.