229 



• 



verse lines, the front (submarginal) one interrupted in the middle ; the breadth 

 increasing backward from the posterior line ; sides almost straight ; hind border 

 slightly conical. Prosternal spine lanceolate, slightly curved, extending to the 

 fore border of the mesosternum. Abdomen slightly compressed and ridged ; 

 supra-anal lamina short; cerci and sub-genital lamina with black tips, the 

 former curved upward, the latter curved downward. Hind femora a little 

 longer than the abdomen, with black points on both sides, and with two black 

 streaks on the inner side; first streak very broad, second very small. Hind 

 tibiee as long as the hind femora. Spines with black tips, those on the inner 

 margin longer than those on the outer. Elytra cinereous, rather longer than 

 the wings ; veins testaceous ; a discoidal, interrupted stripe, emitting four 

 broad branches in front, formed by blackish veins, and most apparent toward 

 the base, the areolets being there smaller ; two dots in the interrupted part 

 of the stripe and some sub-costal dots also formed by blackish veins. 

 Wings pale-cinereous, brownish about the tips ; veins black, whitish at the 

 base. 



Length of the body, 1.5 inches ; expansion of elytra, 3.1 inches. 



Jamaica (Walker). 



Walker adds : " The shorter tibise of this species and C. suh-spurcafa 

 distinguish them from C. americanum.^' 



I have given his lengthy description of this species, but must confess 

 that it contains but few distinguishing characters. 



A. pectorali§. 



Syn., Gyrtacanthacris peetoralis, Walk., Cat. Dermap. Salt., Ill, 551. 

 Female. — Testaceous, slender. Head smooth, with two slender black 

 stripes, which are abbreviated toward the mouth ; vertex convex, depressed 

 in front of the eyes and with six angles, of which the four anterior are rounded; 

 front obhque, thinly and minutely punctured, with four slight keels, the inner 

 keels diverging a little toward the face (corners), the outer bordered with 

 black ; two blackish stripes proceeding obliquely from the eyes to the mouth. 

 Eyes red, fusiform, obhque. Antennae yellow, slender, filiform, luteous 

 toward the tips. Pronotum finely scabrous, with two broad ferruginous 

 stripes, which include some black pustules ; dorsal keel very slight ; four 

 transverse-impressed lines, the front one widely interrupted in the middle j 

 front border rounded; hind border much rounded. Prosternal spine pale- 



