Members of the family Rhaphidophoridae that belong to the genus Ceuthophilus Scudder, 1862
Description: Medium in size; body thick, always dorsally arched; head oval, lacking anterior projection of vertex, bent downward and backward between forelegs; antennae long, slender, cylindrical, tapered; hind femur thick, usually spined beneath in males, feebly armed in females; all tarsi with four segments; fore tibia with spines only at apex; ovipositor nearly straight, stout at base, tapering to middle, dorsal valves upturned apically, ventral valves with five or six teeth near apex, apical tooth usually hook-like.
- Key to Subfamilies of North American Rhaphidophoridae: Subfamily Rhaphidophorinae (Thomas) W.R. Kirby Raphidophorini [sic] C. Thomas, 1872; Rhaphidophorae Brunner von Wattenwyl, 1888; Rhaphidophorini Scudder, 1897; Rhaphidophorninae W.F. Kirby, 1906.
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