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Scientific Name: Argia sp Rambur, 1842
English Name: Dancers
Insects : Argia sp

Photo: GBIF

Classification:
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Odonata
Family: Coenagrionidae
Description:
The labrum, ante- and postclypeus, ante- and postfrons, base of mandibles, and genae exhibit a blue color. The base of the postfrons features a black inverted T connecting to black on the epicranium, which is interrupted by large blue postocular spots broadly merging with the compound eyes. The blue occipital bar is interrupted, forming three spots – two lateral and a small crossbar medially. Additionally, there is a small triangular blue spot anterolateral to the lateral ocellus and a small longitudinal blue spot between lateral ocelli. The antennae are black, and the rear of the head is pale, except for a brown wash on each side of the occipital foramen. Prothorax is mostly black, with specific areas highlighted in blue: the anterior lobe, dorsolateral spot on the middle lobe, and a narrow elongate diagonal spot on the lateral portion of the propleuron with the posterior margin rimmed in black. The pale areas of the pterothorax are vivid blue, featuring a black middorsal stripe slightly narrowed at the basal 0.20, approximately as wide as the blue antehumeral stripe. The abdomen is predominantly blue, with distinct patterns on each segment. In the female, similar features are observed, but the pale colors are light olive tan. The head, prothorax, and pterothorax resemble those of the male, with pale color on abdominal segments S1–2 being more extensive. The legs are largely tan with streaks of brown, and the abdominal segments display varying patterns of pale and dark coloration. The ovipositor, sternite 8, and ovipositor are pale, rimmed with black dorsally and ventrally. The mesostigmal lobe forms a low, evenly raised structure continuous with the distal margin of the plate. In an anterior view, the lobe appears as an elongate raised structure, and there is an elongate raised tubercle posterior to the plate at the junction with the mesepimeron when viewed posteriorly. Additionally, an elongate depressed area parallels the medial portion of the mesostigmal lobe on the anterior part of the mesepisternum when viewed dorsally.
Habitat & Distribution in Bangladesh:
Rocky to muddy rivers and streams and open areas near trickles and ponds, in primary forest to disturbed habitats.
Environment:
Terrestrial, Freshwater
Comments:
They are semi aquatic. Larvae are hatched in water. But they fly away when they got matured.
DNA Barcodes from Bangladesh
GenBank Accession Number:
Other DNA Barcodes & Nucleutide Sequences
Global IUCN conservation status:
Other Information