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Species Metrioptera roeselii - Roesel’s Katydid

Grasshopper - Metrioptera roeselii Roesel's Katydid (nymph) - Metrioptera roeselii - female Roesel's Katydid - Metrioptera roeselii - female Grasshopper - Metrioptera roeselii Woodland katydid - Metrioptera roeselii - female Roesel's? - Metrioptera roeselii Metrioptera roeselii nymph? - Metrioptera roeselii - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Orthoptera (Grasshoppers, Crickets, Katydids)
Suborder Ensifera (Long-horned Orthoptera)
Family Tettigoniidae (Katydids)
Subfamily Tettigoniinae (Shield-backed Katydids)
Genus Metrioptera
Species roeselii (Roesel’s Katydid)
Range
Northeastern United States, adjacent Canada. Also northern Illinois. Introduced from Old World.
Habitat
Found in grassy fields
Remarks
An introduced species from Europe first found in Montreal in 1953 (1).

Both long and short-winged forms exist. The long-winged forms can fly some distance and are more commonly collected here than in Europe.
Print References
"Field Guide To Grasshoppers, Katydids, And Crickets Of The United States" (1) p. 189
Internet References
Singing Insects of North America: genus account--explains introduction, species account.
Works Cited
1.Field Guide To Grasshoppers, Katydids, And Crickets Of The United States
By John L. Capinera, Ralph D. Scott, Thomas J. Walker