Dromogomphus spinosus
Black-shouldered spinyleg (Dromogomphus spinosus) is a species of dragonflies in the family Gomphidae.
| Black-shouldered spinyleg | |
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| Rideau River, Ontario | |
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| Species: | D. spinosus |
| Binomial name | |
| Dromogomphus spinosus Selys, 1854 | |
Like other spinylegs, D. spinosus have long spines on their legs that help in the capture of prey.[1] True to their name their shoulders are black. The dorsal thorax has a light green I-shaped mark with pale ovals on either side. Their flight time is between late May and early September from southern Manitoba to the east coast of the US as far south as Florida.[1][2] Terminal segments form a club with yellow lateral markings.[2] Adults average 2.5 in (64 mm).[1]
References
- Mead, Kurt. (2009) Dragonflies of the North Woods. Duluth, MN:Kollath+Stensaas.
- Dunkle, Sidney W. (2000) Dragonflies through Binoculars. New York:Oxford University Press. p 95-6.
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