Nebraska Dragonflies and Damselflies

Division of Entomology

Western Forktail

Ischnura perparva

Selys, 1876

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The Western Forktail male is greenish with black markings on the thorax and abdomen. The tip of the abdomen is blue. Females may be orange or brown and become olive green when mature.

This is a western species reaching east to central Nebraska. Thiscommon species is essentially identical to Eastern Forktail and the wholeNebraska range (western half of the state) is in the range ofEastern Forktail. The species are regularly found together even in pondswhere there are only a few individuals of each, but there is no evidence ofhybridization. Perhaps because of the difficulty of separating itfrom Eastern Forktail, there is only one county record east of the corerange.

Western Forktail

Size: 22-30 mm (0.9-1.2 in)

Habitat: slow streams and slightly alkaline ponds

Great Plains Range: KS, NE, SD, ND, NM, CO, WY, MT

Flight season: late May to early September

Western Forktail map

Green indicates accepted county record (specimen or photograph).
Yellow indicates sight record only.


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