1878.] 67 [Scudder. 
cous in the median area, apically changing to scattered square fus- 
cous dots. Hind femora below straw yellow, above dark brown, 
with a pair of conspicuous, very oblique, pale bars at the middle 
and next the base; hind tibize pale glaucous, becoming paler next 
the base and straw yellow at the tip, the spines more or less heavily 
black tipped; hind tarsi yellowish. 
Length of body, 3, 13.5 mm., 2, 16.5 mm.; of antenne, 3, 5 mm., 
2,5 mm.; of tegmina, d, 11.5 mm., ¢, 11 mm.; of hind femora, 2, 
9mm. ?,9mm. 14 d, 22 2, mostly collected by myself, either in 
various parts of the South Park, Colorado, 8-10,000 ft. elevation, 
Aug. 11-16, or at Florissant, Colo., 8000 ft., Aug. 17-22, 1877. 
Others were taken in Colorado at an elevation of 5,500 ft. by 
Mr. Morrison, and at Evanston, Wyo. (6800 ft.), on Aug. 6, by 
myself. 
This is a very interesting, lively and trim little species, which 
seems to be most nearly allied to M. collinus Scudd., but differs 
from all the species whose males have forked anal cerci, in that the 
lower branch 6f the fork is much the larger, and in having the last 
ventral segment notched, as in M. spretus (Uhl.). 
74. Melanoplus variolosus. Of medium size. Head very 
slightly elevated, a very little arched; eyes rather prominent, 
squarely cut in front, the frontal ridge more than usually prominent; 
vertex between the eyes as broad (<), or half as broad again (¢), as 
the first antennal joint; foveola rather shallow, particularly in the 
?, the sides in front of the eyes blunt, gently diverging and then 
converging, but in the ¢ subparallel; frontal ridge scarcely con- 
tracted above, scarcely enlarged at the ocellus, at and below which 
it is somewhat sulcate. Pronotum enlarging on the posterior lobe, 
laterally subtumid in an irregular way on the anterior lobe, the pos- 
terior lobe faintly punctate; median carina distinct on the posterior, 
faint (and posteriorly obsolete) on the anterior lobe; sides of the 
pronotum hardly shouldered, or with very rounded shoulders; trans- 
verse sulci of anterior lobe pretty distinct and continuous. Teg- 
mina extending to, or a little beyond, the tip of the abdomen. 
Terminal segment of ¢ abdomen shallowly scoop-shaped, the edge 
entire, but just below it, at the extremity, a conical projecting tuber- 
cle; supraanal plate rounded triangular, pointed, fully as broad as 
long, the marginal apophyses of the preceding segment consisting of 
minute triangular denticles; anal cerci flabellate, consisting each of 
a very broad upturned lateral lamella, whose anterior edge is gently 
