| Blue riverdamsel | |
|---|---|
 | |
| Male | |
 | |
| Female | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Odonata |
| Suborder: | Zygoptera |
| Family: | Coenagrionidae |
| Genus: | Pseudagrion |
| Species: | P. microcephalum |
| Binomial name | |
| Pseudagrion microcephalum | |
 | |
The blue riverdamsel, Pseudagrion microcephalum [3] [1] is a common species of damselfly in the family Coenagrionidae. [4] [5] It is also known as the blue sprite [6] and blue grass dart. [7]
This species can be found in the Australian states of New South Wales, Northern Territory, Queensland, Victoria and Western Australia. It can also be found in Africa: southern Nigeria and Asia: Bangladesh, China, Guangxi, Hong Kong, Hainan, Indonesia, India, Japan, Sri Lanka, Myanmar, Malaysia, Philippines, Peninsular Malaysia, Singapore, Thailand, Taiwan, and Viet Nam. [1] [8] [9]
It is a medium-sized damselfly with pale blue eyes, dark on top. They grow to 38mm in length. Its thorax is azure blue with black, broad dorsal stripes and narrow humeral stripes. Abdominal segments 1 and 2 are blue with black marks on the dorsum. Mark on segment 2 looks like a chalice or thistle-head. Segments 3 to 7 are black on dorsum and blue on the sides. Segments 8 and 9 are blue; 8 with a thick and 9 with a thin black apical annules. Segment 10 is black on dorsum and blue on the sides. Superior anal appendages are of the same length of segment 10; black and divided at the apices. [10]
Eyes and thorax of the female is bluish green, suffused with orange, marked as in the male; but black is replaced by orange. Color of the abdomen is similar to the male; but paler. Segments 8 and 9 are also black with fine apical blue rings. Segment 10 is pale blue. [10]
Pseudagrion microcephalum looks similar to the common bluetail and the eastern billabongfly. The female is blue-grey to grey-green in colour. [4]
This species can easily be found near running water or still water. They usually rest on the plants either in the middle of ponds or at the water edges. It breeds in ponds, lakes and streams. It is entirely a species of the plains, being replaced by Pseudagrion malabaricum in the neighboring hills of Western Ghats of India and Sri Lanka, and by Pseudagrion australasiae to the north-east of India and Burma. [10] [11] [12] [6] [7]
Ischnura senegalensis, also known variously as common bluetail, marsh bluetail, ubiquitous bluetail, African bluetail, and Senegal golden dartlet, is a widespread damselfly of the family Coenagrionidae. It is native from Africa, through the Middle East, to southern and eastern Asia.
Acisoma panorpoides, the Asian pintail, trumpet tail, or grizzled pintail, is a species of dragonfly in the family Libellulidae.
Lestes praemorsus is a damselfly species in the family Lestidae. It is commonly known as the scalloped spreadwing or sapphire-eyed spreadwing. It is very widely distributed from India to China and south to New Guinea.
Diplacodes trivialis is a species of dragonfly in the family Libellulidae known as the chalky percher or ground skimmer. It is found in Seychelles, Oman, United Arab Emirates, China, Japan, India and southwards to New Guinea and Australia.
Lestes viridulus, the emerald-striped spreadwing, is a damselfly species in the family Lestidae, the spreadwings. It is native to Bangladesh, India, and Thailand.
Copera marginipes, commonly known as the yellow bush dart, is a species of damselfly in the family Platycnemididae. It is native to Asia, where it is widespread and common.
Agriocnemis pygmaea is a species of damselfly in the family Coenagrionidae. It is also known as wandering midget, pygmy dartlet or wandering wisp. It is well distributed across Asia and parts of Australia.
Archibasis oscillans, long-banded bluetail, is a species of damselfly in family Coenagrionidae. It is found from India, Thailand, Laos, and Indonesia.
Pseudagrion malabaricum, Malabar sprite, jungle grass dart, is a species of damselfly in the family Coenagrionidae. It is found in India, Sri Lanka, and Myanmar.
Pseudagrion rubriceps, saffron-faced blue dart, is a species of damselfly in the family Coenagrionidae. It is found in many tropical Asian countries.
Bradinopyga geminata is a species of dragonfly in the family Libellulidae known commonly as the granite ghost. It is native to India, Sri Lanka and Thailand, where it is a common and widespread species.
Urothemis signata, the greater crimson glider, is a species of dragonfly in the family Libellulidae. It is widespread in many Asian countries. A number of subspecies are recognized for this species.
Pseudagrion decorum, elegant sprite or three striped blue dart, is a species of damselfly in the family Coenagrionidae. It is found in many tropical Asian countries.
Paracercion calamorum, the dusky lilly-squatter, is a species of damselfly in the family Coenagrionidae. It has a range that extends from southern far-eastern Russia to Japan, and to India and Indonesia. The nominate subspecies P. c. calamorum is known from central and eastern China, Korea and Japan. The subspecies P. c. dyeri occurs in southern China, Hong Kong, Taiwan, Indonesia, India, Nepal, and Thailand.
Pseudagrion indicum, yellow-striped blue dart or yellow-striped dart, is a species of damselfly in the family Coenagrionidae. It is found only in Western Ghats of India.
Euphaea dispar, Nilgiri torrent dart, is a species of damselfly in the family Euphaeidae.
Caconeura gomphoides is a damselfly species in the family Platycnemididae. It is endemic to high altitude peat bogs and grassy uplands in Nilgiris.
Disparoneura quadrimaculata, black-winged bambootail is a damselfly species in the family Platycnemididae. It is a widely distributed species in India.
Protosticta hearseyi, the little reedtail, is a damselfly species in the family Platystictidae. It is endemic to Western Ghats in India.
Pseudagrion australasiae is a species of damselfly in the family Coenagrionidae. It is found in India, China, Indonesia, Malaysia, Myanmar, Singapore and Thailand.
Data related to Pseudagrion microcephalum at Wikispecies
Media related to Pseudagrion microcephalum at Wikimedia Commons
