MORSE: ORTIIOPTERA OF NEW KX(n.AND. 429 
ventral margin but little sinuous, parallel with dorsal. Pro- 
sternum with a low, conical, rather sharply pointed protuberance. 
Tegmina of male covering half of abdomen, long and narrow, 
rounded at apex, the apical half of the front margin transparent, 
the scapular area rather wide and regularly reticulated; in the 
female the tegmina are much abbreviated, covering hardly more 
than a third of the abdomen, tapering in the distal half to an 
acute point. Wings abortive. Examples of both sexes with 
fully developed tegmina and wings are not rare. Legs very 
slender, the front and middle pairs very short, the hind pair elon- 
gate, the hind femora very slender, attenuate. Abdomen elon- 
gate, strongly keeled above. Subgenital plate of male elongate, 
conical, three times as long as basal width. Ovipositor of 
female short, barely exposed, with strongly recurved tips and 
toothed at base of scoop. 
Color: light brown (cf) or pale gray (9), either uniform or 
faintly marked with darker spots and streaks; occasionally the 
female presents a decidedly streaked appearance with darker 
longitudinal markings which are most noticeable on the top of 
head, sides of pronotum, and tegmina. 
Measurements. 
Body 
Tegmina 
(short-w-inged) 
Tegmina 
(long- winged) 
Hind femora 
Antenna 
Male . . . . 
. 23.5-27 
9-12.5 
15..5-17 
13.5-15.5 
9.5-11.5 
Female . 
. 27.5-29.5 
7-11 
18 -22 
14 -19 
8.5-10 mm. 
This singular Locust is not uncommon locally among the 
coarser grasses in wild and uncultivated lands, occurring espe- 
cially on a species of bunch-grass (Andropogon scoparius) every- 
where abundant on sterile soils. I have found it also on beach- 
grass (Ammophila arenaria) and timothy {Phleum pratense). 
It leaps well, and though fairly active it is not shy, but when 
approached closely seeks safety by sidling around the grass 
stems rather than through actual retreat. This is a method of 
escape for which its relatively sluggish habits, linear form, and 
dead-grass color fit it especially well. However, while it custom- 
arily relies for protection on these means and for escape solely 
upon its legs (of necessity), I once saw a long- winged female fly a 
distance of several feet, indicating that in this case, at least, the 
re-development of the wings had been accompanied by the 
