SUBFAMILY ACRIDINAE 71 
ish; usually a distinct and sometimes conspicuous stripe along the 
median carina, frequently, especially in males, bordered by a reddish 
area widening posteriorly. Tegmina well developed in both sexes, 
being as long as, or slightly longer than, the abdomen, light green, 
often more or less suffused with reddish pink. Legs green, the fore 
and middle femora with a more or less distinct annulation of pink 
above the geniculation; posterior femora slender, somewhat fuscous, 
most noticeably so in females, and with a more or less distinct reddish 
annulation before the tip. Hind tibiae pale bluish green, sometimes 
yellowish apically, the spines bluish at base and blackish at tip. Supra- 
anal plate triangular, obtuse at tip, length about equal to breadth, the 
margins nearly straight; furcula minute, rounded lobes rather widely 
separated; cerci considerably shorter than the supra-anal plate, simple 
and regularly conical on basal half, the apical half subequal, bluntly 
pointed, feebly curved downward; last dorsal plate broadly rounded 
and rather deeply emarginate. The following measurements are from 
specimens now before us: male, length 18.5 mm., tegmina 13 mm., 
hind femur 11.5 mm.; female, length 24.5 mm., tegmina 19.5 mm., 
hind femur 15.5 mm. 
We have taken this insect at Pipestone, Redwood Falls, Fergus 
Falls, and Albert Lea. It is usually found on dry prairies more or 
less rolling and of sandy or gravelly soil. In most cases it has been 
found associated with Melanoplus angustipennis. At Fergus Falls, 
where we noted adults of both sexes on July 14, it was not commonly 
found in the weeds or low grasses but in tufts of Symphoricarpus or 
amid tall Compositae. 
Hesperotettix speciosus Scudd. 
Hesperotettix speciosus is somewhat larger than H. pratensis, with 
the disk of the pronotum usually distinctly rugulose, the rugae usually 
yellowish and having a more or less transverse, never longitudinal 
direction on the prozona, while upon the metazona they usually extend 
longitudinally ; tegmina more yellowish than in the preceding and with 
the veins yellow, shorter: than in H. pratensis, and often rather abbre- 
. viate, especially in the male. Hind femora green more or less suf- 
fused with roseate. Supra-anal plate of male triangular and usually 
- acute or subacute at tip; furcula of short triangular lobes; cerci deli- 
cate, slender, conical, with the outer half distinctly incurved. The 
records of this species in Minnesota are based upon a pair taken by 
us in coitu at Mahtomedi, July 29, 1909. They were found in dry 
open woodland with sandy soil. In lowa we have taken it in some 
numbers on dry sandy soil in Muscatine County, associated with such 
plants as Cenchrus carolina, Paspalum ciliatifolium, and Helianthus 
6 
