Hump-winged grig

Hump-winged grigs are insects belonging to the genus Cyphoderris, in the family Prophalangopsidae, and superfamily Grylloidea (crickets). In modern times they are known only in northwestern North America and central Asia, but the fossil record indicates a wider distribution in the past.^[1]

Hump-winged grig
Female Cyphoderris buckelli
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Orthoptera
Suborder:	Ensifera
Family:	Prophalangopsidae
Genus:	Cyphoderris Uhler, 1864
Species
see text

There are three species in North America:^[1]

• Cyphoderris buckelli - Buckell's grig
• Cyphoderris monstrosa - Great grig
• Cyphoderris strepitans - Sagebrush grig

Hump-winged grigs are known for their unique mating habits.^[2] Males call at night by sitting on a tree trunk with their head down and emitting a short, high-pitched trill.^[1] When a female mounts the male, the male uses two hooks on its back to hold onto the underside of the female's abdomen while transferring spermatophore.^[2] During copulation, the female eats the male's hind wings and drinks the male's hemolymph for energy,^[3] causing permanent but nonfatal damage to the male.^[2] Hungry females are more likely to mate, will mount males sooner, and are less selective when choosing mating partners.^[2][3] "Virgin" males, with no hind wing damage, are generally more successful at mating than non-virgin males.^[2]