JAMES A. G. REIIN 361 



and finely impressed, straight transverse, both sulci finely severing the lateral 

 angles of the disk: lateral lobes with greatest depth contained one and one- 

 half times in greatest dorsal length of same, the greatest bulk of the lobes 

 cephalad of the middle of the lateral angles of the disk; cephalic margin of 

 lobes concave dorsad, straight ventrad, ventro-cephalic angle rounded obtuse, 

 ventral margin strongly and fairly regularly arcuate, ventro-caudal angle 

 rounded obtuse, caudal margin strongly oblique concave, humeral sinus indi- 

 cated merely by concavity of the whole caudal margin. Tegmina leaf-like, 

 roughly diamond-shaped, broad, in length surpassing apices of caudal femora 

 by a distance ecjual to the combined length of the head and pronotum, greatest 

 width but slightly less than greatest length of tegmen, opaque; costal margin 

 straight ol^lique in proximal three-fifths, then rounded obtuse and finally 

 oblique crenato-truncate to the rounded obtuse apex; sutural margin with 

 dorsal margin of closed tegmina ascending, weakly sigmoid to a broadlj- rounded 

 obtuse angulation at half the length of tegmen and point of greatest width, 

 thence obliquely weak arcuate: humeral trunk in large part straight, dividing 

 the tegmen into two nearly equal parts, the component veins diverging at 

 three-fifths the length of tegmen; mediastine vein distinct, in general sub- 

 paralleling the costal margin; median vein diverging faintly proximad of two- 

 fifths of the tegminal length, biramose; general venation details in figure: 

 stridulating field relatively broad; stridulating vein heavj^, arcuate, narrowing 

 laterad, nearly transverse in position; free margin in general straight oblique 

 distad of apex of stridulating vein. Wings falling distinctly short of the teg- 

 minal apices. Prosternum unarmed; mesosternal lobes taken together in 

 general outline subquadrate, the lobes moderately spinose caudo-laterad, 

 mesosternal foveolae in a single transverse orifice; metasternal lobes strongly 

 transverse, each with a distinct conical spine, metasternal foveolae in a single 

 transverse orifice. 



Supra-anal plate moderately transverse, slightly arcuate in transverse sec- 

 tion, the lateral margins moderately converging distad, the distal margins 

 sinuato-subtruncate: cerci very short, but faintly surpassing the supra-anal 

 plate, incrassate, conical in distal half: subgenital plate slightly transverse, 

 flattened ventrad, lateral margins straight convergent, distad with two rcunded 

 obtuse-angulate projections of the margin, between which it is obtusely angu- 

 late emarginate. 



Limbs of the type usual in this group, moderately incrassate. Cephalic 

 femora with the length subequal to that of the head and pronotum com- 

 bined, ventro-cephalic margin with one to three brief spines distad: cepha- 

 lic tibiae distinctly longer than the femora, appreciably but not decidedly 

 deplanate distad, tympani rimate on both faces. Median femora slightly 

 longer than the cephalic femora, ventro-cephalic margin with two brief spines 

 distad; median tibiae subequal to the femora in length, appreciably compressed 

 and dilated proximad. Caudal femora about three-fifths as long as the teg- 

 mina, coarse, but little tapering, very faintly arcuate: caudal tibiae subequal 

 to the femora in length, somewhat arcuate, heavy proximad and weakly taper- 

 ing distad, subcompressed proximad, increasingly deplanate distad on dorsal 

 surface, margins unspined. 



TRANS. AM. ENT. SOC, XLIV. 



