Numbers
Nearctica.com lists 21 genera with 149 species in North America.
Genus
Ammobaenetes Hubbell 1936
Genus
Ceuthophilus Scudder 1862
Genus Daihinia Haldeman 1850
Genus
Daihinibaenetes Tinkham 1962
Genus Daihiniella Hubbell 1936
Genus Daihiniodes Hebard 1929
Genus Euhadenoecus Hubbell 1978
Genus Farallonophilus Rentz 1972
Genus
Gammarotettix Brunner 1888
Genus
Hadenoecus Scudder 1862
Genus Hemiudeopsylla Saussure 1897
Genus Macrobaenetes Tinkham 1962
Genus Phrixocnemis Scudder 1894
Genus Rhachocnemis Caudell 1916
Genus Salishella Hebard 1939
Genus Styracosceles Hubbell 1936
Genus
Tropidischia Scudder 1869
Genus Typhloceuthophilus Hubbell 1940
Genus
Udeopsylla Scudder 1862
Genus Utabaenetes Tinkahm 1970
BugGuide includes another genus not in Nearctica.com's list.
Genus
Diestrammena Brunner von Wattenwyl 1888
Identification
Hump-backed large crickets with long antennae and very long legs. Wingless (and thus unable to chirp) up to about 25mm (1 inch) long. Able to jump several feet, which can be startling. Light tan to dark brown in color.
Habitat
Cool damp places - caves, rotten logs, under leaves or rocks. Will not reproduce indoors unless they find continuous dark, moist conditions.
Food
Feed on leaf debris. In houses may chew on paper products, occasionally fabric.
Remarks
If these occur in a house the best treatment is to remove them and their breeding habitat - cool moist dark places such as piles of logs or boards in basements. A clean dry home will not be a welcoming place for these guys. Although they are scary-looking they are basically harmless to humans, except perhaps for minor damage to stored items, and are easily discouraged by eliminating the dark damp habitat they prefer.
Taxonomy of genus Diestrammena is discussed under this image of D. asynamora:
Internet References
Clemson University Click on the image to get to a very informative fact sheet.
Appears to be a dead link - Sept. 2009 
