Dromogomphus
Selys, 1854
Spinylegs, Spiny-legged Clubtails
Species Guides
3- Dromogomphus armatus(Southeastern Spinyleg)
- Dromogomphus spinosus(black-shouldered spinyleg)
- Dromogomphus spoliatus(Flag-tailed Spinyleg)
Dromogomphus is a of in the Gomphidae, commonly known as spinylegs. The refers to the prominent spines on their legs, which function in prey capture. The genus includes three North American : southeastern spinyleg, black-shouldered spinyleg, and flag-tailed spinyleg. These dragonflies are medium to large-sized clubtails with distinctive morphological features.
Pronunciation
How to pronounce Dromogomphus: //ˌdroʊ.moʊˈɡɒm.fəs//
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Identification
Dromogomphus are recognized by the combination of spiny hind legs and clubbed typical of Gomphidae. The spines on the legs are notably developed and visible to the naked . Specific species identification requires examination of abdominal patterning, thoracic markings, and in males, the shape of the terminal appendages. The flag-tailed spinyleg (D. spoliatus) has a distinctive yellow-ringed eighth abdominal segment.
Images
Habitat
Associated with rivers and streams, particularly flowing water with rocky or sandy substrates. Larvae develop in these aquatic environments.
Distribution
North America. Records include the eastern and central United States, with specific distribution varying by . The extends from the southeastern United States northward to regions including Vermont.
Similar Taxa
- GomphusBoth are in Gomphidae with clubbed ; Gomphus generally lack the prominent leg spines characteristic of Dromogomphus
- HageniusAnother Gomphidae with spiny legs; Hagenius brevistylus (dragonhunter) is larger and has a different overall body proportions and coloration
More Details
Etymology
The name Dromogomphus combines Greek 'dromos' (running, course) with 'gomphos' (club, bolt), referring to the clubbed typical of the . The 'spinyleg' directly references the diagnostic leg spines.