90 
f. Median carina of the pronotum cut by but one 
transverse incision; sub-cristate or at least mo¬ 
derately elevated on the anterior and middle 
lobes; elytra with three, more or less distinct, 
bands. 
g. Posterior tibiae red or reddish; medium size. 
h. General color dark reddish-brown; the notch 
in the median carina of the pronotum oblique. ( Oe. collaris.) 14 
hh. General color ash-gray, mottled with dusky 
brown and white; the notch of the median 
carina of the pronotum vertical. (Oe. aequalis .) 13 
gg. Posterior tibiae pale yellowish; elytra grayish- 
brown; dark band of the wings very broad; 
rather under medium size. (Oe. belfragii.) 16 
ff. Median carina of the pronotum small, cut by 
two transverse incisions; body rather' slender; 
medium size. 
g. Elytra with scarcely any signs of cross bands; 
. almost uniform pale ash-brown, sprinkled over 
with darker and whitish dots and minute spots; 
top of the head not more than usually prom¬ 
inent. (T. maratima.) 18. 
gg. Elytra with more or less distinct transverse 
bands; top of the head and eyes standing higher 
than usual. 
h. Elytra with three tolerably distinct dark bands 
and two intermediate broad whitish bands; no 
whitish line along the angle when closed. (T: verruculata.) 17. 
hh. Elytra have on the lower field two sub-quadrate 
black spots, separated by an elongate whitish 
spot; also a whitish line along the angle when 
closed. (M. cincta.) 19. 
III. Face vertical or nearly so; prosternum armed 
with a distinct spine. Group Acridini. 
A. Elytra shorter than the abdomen or wanting. 
a. Body robust; resembling a short-winged Ca- 
lop>tenus hivittatus in form and color, except 
that the hind femora are distinctly banded, and- 
the lateral stripes are entirely or partially want¬ 
ing; elytra meeting on the back, vary from 
one-third to the full length of the abdomen; 
lateral carime of the pronotum distinct; length 
of the female usually more than an inch. (P. viola.) 28. 
aa. Body rather slender, at least not robust, nor re¬ 
sembling C. hivittatus; elytra not meeting on 
the back, less than, or not more than, half the 
length of the abdomen in the female; rather 
small, length less than an inch. 
b. Vertex, especially in the male, unusually narrow 
between the eyes; pronotum cylindrical; poste¬ 
rior femora greenish; elytra minute, not meet¬ 
ing on the back; face somewhat oblique and 
arcuate. (P. minutipennis,) 26. 
