112 Annals of the Carnegie Museum. 



globular eyes, narrow vertex, short strongly punctate pronotum, more 

 or less abbreviated tegmina and wings, long robust hind femora, and 

 forked male cerci. The type of the genus is the Gryllus bucephalus 

 Marschall 8 as determined by the author. 



Head medium or large, a little wider than the front edge of the 

 pronotum; the occiput short, rounded; face rather oblique, even in 

 the females; frontal costa prominent between the antennae, less 

 prominent and irregular below the ocellus, plane, or shallowly sulcate 

 above, more deeply so below; lateral or facial carinas somewhat 

 divergent below; fastigium sulcate, a little depressed and angulately 

 united with the frontal costa; vertex between the eyes very narrow 

 (o 71 ) or nearly as wide as the frontal costa at its widest part (9). 

 Antennae filiform, about twenty-jointed, moderately long, in the males 

 of some species longer than the hind femora. Pronotum coarsely and 

 deeply punctate, rather short, sub-cylindrical, a little widening 

 posteriorly, without lateral carinse, the transverse sulci prominent, 

 anterior edge truncate, or a little rounded, hind border obtusangulate, 

 hind lobe much the shorter. Tegmina and wings abbreviated, so as 

 to equal the length of abdomen, fusiform, rather prominently veined, 

 plain, or mottled. Wings short and broad, blue, with black or fuscous 

 tips. Abdomen short and tapering. Hind femora fairly robust, 

 extending beyond the apex of abdomen in both sexes. Hind tarsi 

 long and slender, the third joint as long as first and second, second 

 one-half the length of first, or less; tibiae and tarsi rather lengthily 

 hirsute. Hind tibiae seven-spined in outer row, the apical one wanting. 

 Upper valves of the ovipositor strongly serrate or crenulate. Tip of 

 the male abdomen short and prow-shaped; the cerci rather heavy, 

 acuminate, and with an inner tooth near the middle. Prosternal spine 

 pyramidal, straight, acuminate. Lobes of the mesosternum widely 

 separated, the space as broad as, or broader than, the lobes themselves. 



The insects comprising this genus bear a general resemblance to the 

 various members of Biiccphalucris Giglio-Tos, but differ in a number 

 of respects. The most apparent difference, however, is in the com- 

 parative length of the hind tarsal joints. As described by Giglio-Tos 

 the species of Bucephalacris have the first and second joints equal, 

 while in Chrysopsacris the representatives have them very unequal, the 

 length of the second being only one-half, or even less than that, of the 

 first. 



8 Ann. Wiener Mus., 1835, p. 217, No. 10, pi. XVIII, fig. 9. 



