1907.] NATURAL SCIENCES OF PHILADELPHIA. 49 



in both sexes; median carina distinct but hardly elevated, lateral angles 

 distinct, obtuse, slightly more rounded on the mctazona than on the 

 prozona, the angles regularly expanding caudad throughout their 

 length, the expansion being much more marked in the female than in 

 the male; metazona about half the length of the prozona, the metazona 

 also more closely punctate than the prozona; lateral lobes with the 

 length distinct!}' one and one-half times the depth in the male, less 

 than one and one-half times the depth in the female, 

 cephalic margin very slighth' arcuate, caudal margin 

 with a conca\-e-arcuate cephalic trend, the ventro- 

 caudal angle thick and very slightly recurved, ven- 

 tral margin arcuate with the cephalic half sinuate, 

 sulci well marked on the lateral lobes. Mesonotum Fig. 7. — Conal- 



and metanotum together slightlv shorter than the ccea huachuca- 



- ,. .'" / jian.sp. Dor- 



pronotum in the male, distmctly shorter than the sal view of 



pronotum in the female, l)oth tectate and carinate as ^Pj^ ^^ "^f^f 

 ^ . abdomen. (X 



is the pronotiun. Prosternal spmes erect, thick, apex 3.) 



slightly bkmted ; interspace between the mesosternal 

 lobes slightly longer than broad in the male, subquadrate in the 

 female; interspace between the metasternal lobes very narrow 

 in the female, lobes contiguous in the male. Tegmina reaching 

 to the caudal margin of the metanotum, lanceolate, about two 

 and a half times as long as broad in each sex, slightly narrower 

 in the male than in the female; apex rather broadly rounded. 

 Abdomen slightly compressed and with a low median carina ; f urcula 

 developed as veiy broad, short, trigonal plates, no longer than the 

 segment from which they arise; supra-anal plate produced trigonal, 

 apex bluntly rounded, median sulcus narrow and deep in the 

 proximal half; cerci moderately compressed with the proximal half 

 thick and subequal, the distal half falciform, the cephalic margin 

 slightly elevated and arcuate around to the acute apex, the sub- 

 lamellate portion of the distal half curved in toward the median 

 line of the body; subgenital plate subpyramidical, the apex well ele- 

 vated above the margin, the two being comiected by a blunt ridge. 

 Cephalic and median limbs robust in the male, rather weak (for a 

 Melanoplid) in the female; caudal femora regularly tapering, not 

 greatly inflated, the greatest w'idth in the male contained about three 

 and a half times in the length; caudal tibiae with nine spines on the 

 external margin. 



General colors russet and seal brown. liead with the postocular 

 bar not strongly marked ; eyes varying from l)urnt unil)er to ra\\' umber; 

 4 



