SUBFAMILY II. OEDIPODIN.K. 263 



subglobose, the cheeks swollen; vertex with disk usually broadly 

 triangular, its sides distinct but not sharp; apex rounded or ob- 

 tusely angulate, more or less declivent; median carina present, 

 at least on posterior half, and continued back over the occiput in 

 the form of a small central ridge; foveola? present, shallow, usu- 

 ally triangular in form ; antennae little, if any., longer than head 

 and pronotum together, filiform, the joints of apical halves fee- 

 bly flattened ; pronotum with disk flat or nearly so, usually rugose 

 and bearing a number of rounded or oblong tubercles, its front 

 margin truncate, hind one usually obtuse or right-angled ; median 

 carina rather prominent, in our eastern species cut once by the 

 principal sulcus; lateral carina? usually extending a short distance 

 in front of this sulcus, but not cut by it; lateral lobes of pronotum 

 about as long as deep, constricted near middle, their front margin 

 slightly sinuate, hind one oblique or subvertical, lower one with 

 its posterior half rounded, front half obliquely ascending, its 

 lower hind angle usually broadly rounded; tegmina considerably 

 exceeding the abdomen ; hind femora stout, depressed, dilated at 

 base, the inner face usually bicolored ; hind tibia 1 pale red or yel- 

 low, their spines black ; valves of ovipositor robust, strongly ex- 

 serted. 



As already noted, R. & H., following Kirby, have raised Saus- 

 sure's subgenus Pardalopliora (1884, 83) to generic rank. That 

 subgeneric name was based primarily on the absence of cross car- 

 ina^ of the vertex, thus leaving its disk entire instead of quadripar- 

 tite as in Hippisciis rugosus. I have pointed out (footnote, p. 240) 

 that this is a minor character, the transverse carina being almost 

 as often present as absent in individuals of the same species. The 

 other characters used by Saussure in separating the two subgen- 

 era, viz., the form of the frontal costa and length and form of 

 metazona, I regard as of specific value only as they are so regarded 

 in Arpliiti. I therefore follow Scudder (1802, 20.")) in discarding 

 Ponltilnplioni and placing all our eastern species under the older 

 name Hippisciis. Under the two names, Hippisciis and Panlaln- 

 plior<i. Kirby (1010, 203, .200) places 14 species, 12 belonging to 

 the F. S. fauna, the other two to that of Mexico. Some of these 

 are known synonyms and only four occur in the eastern States. 

 They comprise the largest and in places some of the most common 

 of our Oedipodinse. 



KEY TO EASTERX SPECIES OP HTPPISCUS. 



a. Metazona distinctly longer than prozona, its hind margin i.cute-angled 

 (Fig. 96. ft 1 ); vertex with front half of disk prolonged, narrowing 

 gradually; ulnar area of tegmina dark, but without distinct spots: 

 wings pinkish-red at base. 113. APICULATUS. 



