MORSE: ORTHOPTERA OF XEW EXC.LAXD. 445 
but the outer edges of the upper valves even more prominently 
toothed. 
Measurements. 
Total Tegniina Tegmina, avcraRC Hind femora Antenna 
Length Width 
Male . . . 22.5-2S 16.5-21 21.5 5.5 12 -14 9 -10 
Female 24 -31.6 17 -23.5 23 5 14..'3-16 S.5-9.5 mm. 
This is a duller-colored insect than its striped relative, the 
prevailing hue being a dead-leaf brown, somewhat yellowish, dis- 
tinctly paler above and darker on the sides. The brilliant red 
of the under side of the hind thighs extends fully three-fourths of 
their length, covering that part which is clouded or ringed 
with fuscous in M. lineatus. 
It may be readily distinguished from M. lineatus, which it 
most resembles in the form of the pronotum, by the characters 
stated and by the more compressed form of the body, especially 
of the head and prozone, the smaller size, and the broader 
tegmina, which have the internal (dorsal) border noticeably 
expanded. 
This is a not uncommon Locust in the northern States, even 
plentiful locally, but rather shy, taking readily to wing and flying 
two or three rods. Its flight is straight and it drops rather 
suddenly into the grass. On the summit of Mt. Greylock, Mass., 
where most of my specimens were secured, it was somewhat 
difficult to distinguish from Camnula pellucida when on the wing. 
Both sexes fly well but the male is the more active, and seems 
three or four times as plentiful. It lives in wet, sedgy meadows 
and bushy swamps and on the tops of mountains even above 
timber-line. On Mt. Greylock it was formerly common in the 
low bushes and grass at the extreme summit; on Mt. Washington, 
N. H., in the extensive sedgy area called the "Cow-pasture" or 
"Semidea plateau." At Whitneyville, Me., Alstead, N. H., and 
Woodstock, Vt., I have taken it in company with M. lineatus. 
It is known also from Orono, Jackman (F. P. Briggs), Norway, 
and Great Cranberry Id. (Hebard), Me.; Jefferson, N. H.; 
Montgomery and Newport, Vt. Adults have been taken from 
July 12 to September 6. 
Its stridulation is the loudest produced by any of our Acridinae 
and can be heard for two or three rods. A description and nota- 
