SUBFAMILY ACRIDINAE 69 
clepsydral in shape; metasternal lobes subattingent, especially in the 
male. Tegmina abbreviate, acuminate, attingent, or overlapping and 
about as long as the pronotum. Hind femora slender, somewhat com- 
pressed. Abdomen of male neither clavate nor curved upward apically ; 
lateral margins of the subgenital straight from the base; subgenital 
acute-angulate at tip, with a slight, blunt, apical tubercle; cerci very 
simple, slender and apically incurved; furcula consisting of a pair of 
slight, cylindrical, slender fingers, parallel, subparallel, or somewhat 
approaching one another posteriorly. This western genus is, as now 
defined, monotypic. 
Hypochlora alba Dodge 
Hypochlora alba is a small, rather pale green insect having con- 
siderable general resemblance to Melanoplus gracilis. We have taken 
this species at several points in western Minnesota, notably at Pipe- 
stone, Granite Falls, and Fergus Falls, in all of which cases it was as- 
sociated with the wild sage (Artemisia cana Pursh. and A. ludoviciana 
Nutt.), an association which has been previously noted by Bruner. 
Speaking of this insect he says, “Here in Nebraska it is one of the 
commonest species . . ~~ it is most commonly found on Artemisia 
ludoviciana.’ In Iowa and doubtless in the southeastern part of Min- 
nesota, it finds equally good concealment on [*roelichia and the hoary 
species of Oenothera. It matures late in July. 
ESPERO PED DEXe Seudd: 
The sides of the body of Hesperotettix are almost parallel and are 
somewhat compressed and not much enlarged at the metathorax. Head 
not very prominent; vertex usually very narrow between the eyes; 
frontal costa generally as broad as, if not broader than, this interval 
between the eyes and sulcate throughout. Front straight, somewhat 
oblique; antennae longer than the head and pronotum together; eyes 
slightly prominent, more distinctly so in the male. Pronotum long and 
slender, the dorsum fully half as long again as broad; the prozona con- 
siderably longer than the metazona, sometimes half as long again, and 
with less distinction in surface and sculpture between them than usual, 
both broadly tectiform; the median carina slight but distinct and alike 
or nearly so throughout. Posterior margin of the disk with a very 
obtusely angulate tip and the border delicately margined. Prosternal 
spine rather long and bluntly conical ; mesosternal interspace generally 
twice as long as broad in male, and nearly subquadrate in the female ; 
metasternal lobes subattingent in both sexes. Tegmina and wings 
