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Species of damselfly From Wikipedia, the free encyclopedia
Dysphaea ethela,[3][1] the black torrent dart,[4][5] is a species of damselfly in the family Euphaeidae. The insect is named after Frederic Charles Fraser's wife, Ethel Grace Fraser (née Varrall) (1881-1960), a constant companion of his collecting trips in India.[2][6]
Dysphaea ethela | |
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Male | |
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Female | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Odonata |
Suborder: | Zygoptera |
Family: | Euphaeidae |
Genus: | Dysphaea |
Species: | D. ethela |
Binomial name | |
Dysphaea ethela Fraser, 1924[2] | |
It is found in Karnataka and Kerala and Tamil Nadu in Western Ghats.[1] This species is also known from the Eastern Ghats and central India.[7][4][8]
It is a medium sized damselfly with black head and brown-capped pale grey eyes. Its thorax is black, marked with narrow antehumeral and humeral greenish-yellow stripes. There are another yellow stripes on the base of lateral sides. These marks will get obscured by pruinescence in old males. Wings are transparent; but evenly infused with brown. Abdomen is black, marked with yellow apical annules up to segment 8. There are yellow lateral stripes up to segment 6. Anal appendages are black.[9]
Female is short and robust; the yellow marks are more broad and vivid. The yellow lateral stripes continued to segment 7. Segment 8 has a narrow and 9 has a broad yellow apical annule, covering dorsal half.[9]
It breeds in streams and rivers. Commonly seen perched on reeds or bushes on the river's bank or settled on rocks far inside the stream.[9][2][7][4][5]
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