30 INSECUTOR INSCITIi^ MENSTRUUS 



backward ; caudal geniculations of the middle femora distinctly 

 armed with a long, stout, sharp spine, all the others rounded 

 or very bluntly and briefly armed. Organs of flight fully de- 

 veloped ; tegmina nearly three times as long as the pronotum, 

 and about three times as long as broad and rapidly tapering 

 in the apical half by the curving backward of the costal margin, 

 the anal margin of the spread tegmina being nearly straight ; 

 radial veins nearly straight and basally well separated but con- 

 verging toward the apex ; speculum of the right tegmen large 

 and transparent, that of the opposite one smaller and coriace- 

 ous, the stridulating vein scarcely forming an angle ; wings 

 moderately and uniformly fuliginous, about as broad as long, 

 at rest just reaching the apex of the tegmina, the outer margin 

 evenly rounded, not at all sinuate. A^bdomen stout ; supraanal 

 plate depressed, triangular, a little broader than long, apically 

 entire, slightly concave dorsally ; subgenital plate broad and 

 ventrally convex basally, apically narrowed and concave be- 

 neath, apically notched, each side with a stout depressed style 

 which is broadest mesially and broadly concave on the inner 

 ventrolateral surface, the whole about twice as long as the 

 median width, the apex rounded ; cerci but little longer than 

 broad, conical from an outer dorsolateral aspect, which sur- 

 face is broadly convex, the inner side deeply and broadly con- 

 cave, the lower margin curved a little inward and armed with 

 a long slender upwardly and inwardly directed spine which is 

 liidden from view unless the cerci are raised for examination. 

 General color brownish yellow varied with darker, especi- 

 ally on the elytra ; the posterior femora have a broad dark 

 brownish band a little beyond the middle, a similar preapical 

 band and a darker and more conspicuous area on the dorsal 

 and upper half of the outer surface at about the basal third, 

 at the widest part of the femora. The spines of the legs are 

 infuscated apically. The short median longitudinal sulcus of 

 the pronotal disk is black and there is an irregular blackish 

 stripe marking the site of lateral carinae on the posterior half 

 of the pronotum. The face is concolorous with the rest of the 

 head. 



