36 IOWA STUDIES IN NATURAL HISTORY 
tegmina varies somewhat in distinctness and the general colora- 
tion of some specimens is lighter than in others. The pronotal 
disk is usually unicolorous, but sometimes there is present an 
obscure posteriorly narrowing longitudinal lighter streak ; lateral 
lobes unicolorous or the lower portion slightly lighter, and a 
slightly darkened area mesially on the anterior portion of the 
lobe. The sides of the head have a blackish subocular stripe 
much less conspicuous than in pallens. The posterior femora are 
usually white on the outer face, but rarely they are brown, 
similar to the general coloration. The pronotal disk is acute 
posteriorly, but there is some slight variation in this respect. 
Schistocerca inscripta Walker 
Cyrtacanthacris inscripta Walk., Cat. Derm. Salt. Brit. Mus., vol. 11, 
p. 550 (1870). 
Schistocerca inscripta Kirby, Syn. Cat. Orth., vol. m1, p. 455 (1910). 
Three males and two females of this species were taken by 
the expedition, all from Antigua, the females on July 3 and the 
males on July 1, 5, and 10. 
This species resembles americana, but is noticeably smaller ; 
it may eventually prove to be but a smaller form of that widely 
distributed species. These Antiguan specimens agree with ones 
from Jamaica, the type locality. Some variation is noticeable 
in the clearness of tegminal maculation and also in the variega- 
tion of the lateral lobes of the pronotum. 
Schistocerca pallens Thunberg 
Gryllus pallens Thunbg., Mem. Acad. Petersb., vol. v, p. 237 (1815). 
Schistocerca pallens Kirby, Syn. Cat. Orth., vol. m, p. 460 (1910). 
A fine series consisting of 22 males and 13 females, also two 
large female nymphs probably of this species, were brought back 
by the expedition. One male comes from Antigua, taken July 12, 
and all the rest are from Barbados, 15 males and 8 females on 
June 16 and the rest with only the month date of June and a 
single pair taken in May. 
This species seems very uniform in having the costal area of 
the tegmina immaculate; the clearness of tegminal maculation 
varies somewhat, but here, too, the variation is slight. The 
marking of the pronotum, however, is decidedly variable, espec- 
ially on the disk where the color ranges from a wholly unicolor- 
