90 THE ACRIDIIDAE OF MINNESOTA 
tinctly incurved, apically rounded. This specimen (male) has the fol- 
lowing measurements: length 21 mm., tegmina 14.5 mm., and hind 
femora 11.5 mm. It very closely resembles a specimen in the collec- 
tion of the Iowa State College, at Ames, which was taken in north- 
western Iowa and identified by Dr. Scudder. 
Melanoplus infantilis Scudd. 
Melanoplus infantilis is easily the smallest of our Melanophi, and 
possibly excepting M. puer of the extreme southeastern states, the 
smallest of this group in America. It is of griseous coloration vary- 
ing from the typical dark form to quite light ; the head brownish, more 
or less maculate with dark spots; postocular band often rather obscure 
on the head but distinct on the lateral lobes of the prozona, often edged 
with yellow above. Tegmina exceeding the abdomen and in most cases 
exceeding the tip of posterior femora in both sexes, cinereous in color 
and distinctly maculate with fuscous; posterior femora straw-yellow 
below, dark brown above, often ferruginous, with a pair of conspicu- 
ous oblique pale bars at the middle and next the base; posterior tibiae 
glaucous, often with a pale area at base and sometimes with an obscure 
straw-yellow space near the tip. The following measurements are 
from a pair taken at Fergus Falls: Male, length 15 mm., tegmina 11.5 
mm., hind femur 8 mm.; female, length 17.5 mm., tegmina 13 mm., 
hind femur 10 mm. Adults occur by July 15 at Fergus Falls. It 
occurs commonly on dry gravelly soil and amid the somewhat scat- 
tered and pale vegetation of such soils; its grayish color renders it 
very inconspicuous. Indeed, at both localities where we found it, it 
was discovered only by accident in “sweeping” the low plants. It 
appears to be fond of climbing tall weeds such as Verbena stricta Vent. 
and the Oenotheras. We have taken it only at Fergus Falls and 
Detroit. 
Melanoplus minor Scudd. 
Melanoplus minor is a small or medium-sized insect (Plate lI, 
10), readily distinguished from others of our area by the pecu- 
liarly angulate cerci of the male and the relatively small size. It is 
normally the earliest of our Melanopli to appear in spring, and as far 
north as Fergus Falls has been found mature in some numbers by June 
8. The females are dimorphic in coloration of the hind tibiae, being 
found with these glaucous or of a pale red tint, then normally with a 
pale yellowish area basally ; the males, however, are, in our specimens, 
nearly all of the “red-legged’”’ type. Mating has been observed in the 
field as early as June 20 and the young appear in August, passing 
the winter in an advanced stage of development. In general appear- 
