1007.] NATURAL SCIENCES OF PHILADELPHIA. 381 



male of G. rostratd as the venation is much more irregular, the fastigium 

 is longer and the limbs shorter and weaker. 



Size medium: form considerably compressed. Head with the fasti- 

 fiium much narrower than the proximal joint of the anteniuc. subecjual. 

 apex blunt, mcxlerately sulcate dorsad, the apex when viewed laterad 

 distinctly exceeding the margin of the proximal antennal joint when 

 the latter is in a vertical position; facial fastigium produced into a 

 slender projecting process directed dorso-cephalad and touching the 

 ventral surface of the apex of the fastigium of the vertex; eyes sub- 

 globose, moderately prominent; antennae slender, broken in the type. 

 Pronotum with the disk as in G. roslrata except that the median section 

 bears a distinct longitudinal sulcus more apparent caudacl than 

 cephalad, while a rectangulate imi)ressed pattern is placed slightly 

 caudad of the middle ; lateral lobes as in rostrata. Tegmina about three 

 and a half times as long as the combined length of the head and pro- 

 notum, moderately lanceolate, the greatest width 

 contained nearly four times in the length; costal 

 margin regularly but slightly arcuate, sutural mar- 

 gin straight except where it curves to the narrowly 

 rounded apex; median vein diverging very slightly 

 clistad of the middle and reaching the sutural 

 margin well before the apex, discoidal vein bearing 

 three rami in the distal section ; the whole venation 

 is peculiar in character, the principal veins irregular ^.. ^^ ^Zmmma- 

 and connected by numerous adventitious veins. dcra forcipaia n 

 Wings extending beyond the tegmina a distance ^Jl' ^ ^^^'^^^ ^^]^ 

 about equal to the length of the cephalic femora, aljdomen. (x 7.) 

 apex moderately acute. Terminal abdominal 

 segment truncate; supra-anal plate hastate, slightlj* constricted 

 mesad; cerci simple, tapering, apex acute, the distal section mod- 

 erately incurved and also with a distinct dorsal curve; subgenital 

 plate strongly produced, reaching about to the end of the cerci, hoar- 

 ing three converging ventral carinte, narrowly incised distad with 

 the lateral portions of the apex of the plate moderately long, 

 sharp and tapering. Cephalic femora slightly shorter than the 

 pronotum, unarmed ventrad; median femora slightly less than half 

 the length of the caudal femora, unarmed ventrad. Caudal femora 

 very slightly shorter than the body, not strongly inflated proximad, 

 armed with several small spines on the ventro-lateral margin; caudal 

 tibiae exceeding the femora by nearly the length of the head. 



General color pale chromium green touched with yellowish on the 



