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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Grasshoppers, Crickets, Katydids (Orthoptera) » Long-horned Orthoptera (Ensifera) » Katydids, Camel Crickets, and relatives (Tettigoniidea) » Hump-winged Crickets (Prophalangopsidae) » Cyphoderris » Great Grig (Cyphoderris monstrosa)

Species Cyphoderris monstrosa - Great Grig

Classification · Other Common Names · Explanation of Names · Numbers · Size · Identification · Range · Habitat · Season · Food · Life Cycle · Remarks · See Also · Internet References
Fat GrassHopper?? - Cyphoderris monstrosa - female Male Cyphoderris Monstrosa - Cyphoderris monstrosa - male Male Cyphoderris Monstrosa - Cyphoderris monstrosa - male Parasitized by a horsehair worm/Nematomorpha - Cyphoderris monstrosa hump-winged cricket - Cyphoderris monstrosa - female Cyphoderris monstrosa - female Cyphoderris monstrosa - male Cyphoderris monstrosa - male
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Orthoptera (Grasshoppers, Crickets, Katydids)
Suborder Ensifera (Long-horned Orthoptera)
Infraorder Tettigoniidea (Katydids, Camel Crickets, and relatives)
Family Prophalangopsidae (Hump-winged Crickets)
Genus Cyphoderris
Species monstrosa (Great Grig)
Other Common Names
Monster Haglid
Explanation of Names
MONSTROSA: like a monster; very large and abnormally shaped or hideous (this species is the largest of the 3 in North America)
Numbers
one of three species in this genus in North America; uncommon in appropriate habitat
Size
body length 20-30 mm
Identification
male dark gray dorsally, pale whitish ventrally, with short wings humped up and wrinkled like a loosely-folded blanked heaped on the insect's back; male subgenital plate with a ventrally-directed process shaped like the nail-pulling claw of a hammer
female either lacks wings or has them reduced to small stubs
Range
southern British Columbia and Alberta, south to northern California and southern Idaho (see distribution map)
Habitat
coniferous forests containing Lodgepole Pine, Englemann Spruce, and Mountain Hemlock; adults hide beneath leaf litter during the day, and become active at night, climbing tree trunks and continuing high into the branches to feed, sing (males), and mate
Season
adults from June to August
Food
staminate flowers of coniferous trees, and flower parts & pollen of broadleaved shrubs; sometimes eats fruit and small insects
Life Cycle
overwinters as a late-instar nymph or young adult in burrow in ground; one generation per year
Remarks
males stridulate to attract females or to announce territory; males also have fierce fights over territory and/or females
See Also
compare C. buckelli (whose male lacks a ventrally-directed process on the subgenital plate), and C. strepitans (which doesn't occur in Canada)
Internet References
Singing Insects of North America
Contributed by Robin McLeod on 29 November, 2005 - 3:39am
Additional contributions by metrioptera
Last updated 19 February, 2014 - 6:52am

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