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Subfamily Tettigoniinae - Shield-backed Katydids

Roesel’s Katydid - Metrioptera roeselii - female Anabrus 6.15.09 02a - Anabrus longipes - male unknown shield-backed katydid - Idiostatus - female Haldeman shieldback - Pediodectes haldemani - male Protean Shieldback Katydid Nymph - Atlanticus testaceus - male Upshur County Nymph - Atlanticus Katydid - Pediodectes nigromarginatus - female Long-horned Grasshopper - Metrioptera roeselii - female
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 Tettigoniidae (Katydids)
Subfamily Tettigoniinae (Shield-backed Katydids)
Other Common Names
Predaceous Katydids
Numbers
Singing Insects of North America lists approximately 25 genera. (1)
Capinera (2) lists 122 North American species in this subfamily.
Size
18-50 (a few, 85) mm
Identification
Usually have short wings, brown or black coloration. Pronotum usually shield-like, extends back over wings. Resemble robust crickets. True "shieldbacks", e.g., Atlanticus, have reduced wings, especially in females, and are flightless.
Range
Most genera (21 or so) in western North America. Four genera in east, Atlanticus is widespread.
Habitat
Varied: open country, croplands, a few in forests
Season
Summer, early fall
Food
Some species are active predators of other insects. Many also eat plant material and scavenge dead insects.
Remarks
Formerly called subfamily Decticinae. May bite if handled. In Europe, called "Wart Biters". Some species are pests of crops, such as the "Mormon Cricket", Anabrus simplex.
Print References
Capinera, pp. 184-191, plates 41-42 (2)
Arnett, pp. 163-164, figs. 11.19--Anabrus, 11.2--Atlanticus, 11.21--Peranabrus, 11.22--Hubbellia. (3)
Helfer, pp. 281-303, figs. 437-481 illustrates several genera. (4)
Internet References
SINA (1):
Works Cited
1.Singing Insects of North America
2.Field Guide To Grasshoppers, Katydids, And Crickets Of The United States
John L. Capinera, Ralph D. Scott, Thomas J. Walker. 2004. Cornell University Press.
3.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
4.How to Know the Grasshoppers, Cockroaches, and Their Allies
Jacques R. Helfer. 1962. Wm. C. Brown Company.