SUBFAMILY III. LOCUSTIN.E. 345 



space wider than the costa, female; antennae slender, with joints 

 somewhat flattened, about as long as, female, or slightly longer 

 than, male, the head and prouotum together; frontal costa narrow, 

 deeply sulcate, its margins usually parallel; disk of pronotnm rug- 

 ulose-pnnctate throughout, distinctly widening from apex to base 

 and strongly tectiform, female, widening only on the metazona, 

 male; median carina low, cut only by the principal sulcus; lateral 

 carinae wanting; prozoua more than twice as long as rnetazona, 

 its front margin usually feebly rounded ; metazona with hind mar- 

 gin sub-truncate or broadly, feebly eniarginate; lateral lobes sub- 

 vertical, nearly twice as long as deep, narrowing downward, front 

 margin strongly oblique, lower one sinuous, its hind angle broad- 

 ly rounded ; tegmina linear, about as long as pronotum or absent ; 

 prosternal spine slender, cylindrical, its apex blunt ; inner margin 

 of mesosternal lobes broadly convex, their interspace nearly 

 linear, male, or less than half their width, female; hind femora 

 slender, reaching base of ovipositor, female, slightly surpassing 

 abdomen, male; abdomen compressed and strongly carinate, fe- 

 male, subcylindrical, usually nearly horizontal and with apex but 

 little enlarged, male; supra-anal plate of male rather short, trian- 

 gular or suboval, its margins reflexed and with a short basal me- 

 dian groove; subgenital plate very short, its apical margin low, 

 not tuberculate. 



A genus confined to the South Atlantic States, where it is 

 represented by two species and one geographic race. 



KEY TO SPECIES OF APTENOPEDES. 



a. Tegmina present as elongate linear pads; margins of frontal costa 

 converging above the antennae and uniting at the lower margin of 

 the convex fastigium. 



b. Cerci of male substyliform, nearly straight, tapering rapidly from 

 base to middle (Fig. 118, e) ; shorter than supra-anal plate, the 

 latter elongate-triangular, its sides subparallel and apex acute. 



153. SPHENARIOIDES. 



lib. Cerci of male with apical half falcate, bent inward, as long as or 

 slightly longer than the supra-anal plate, the latter broadly 

 oval, its sides curved and apex obtusely rounded. 153a. CLARA. 

 aa. Tegmina wholly wanting; margins of frontal costa feebly converging 

 above the antennae, not uniting but continued separately to the crest 

 of the strongly flattened fastigium. 154. APTERA. 



153. APTEXOPEDES SPHENARIOIDES, Scudder, 1877a, 84. Linear-winged Locust. 

 Male slender, subcylindrical; female much larger, strongly compressed. 

 General color green, or (more often in female) sometimes a purplish- 

 brown. Head and face usually flecked with fuscous dots; antennae red- 

 dish-yellow, their tips dusky. Pronotum with a narrow pale yellow stripe 

 each side along its dorsal margins, this extending forward along the ob- 



