466 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
mid-carina very low. Eyes about three times in side of head. 
Pronotum with front margin slightly angulate, hind margin about 
rectangular; median carina high, sinuate on prozone, arched on 
metazone, cut to the bottom by the principal sulcus; lateral 
lobes deeper than long, their sides nearly vertical, lower margin 
oblique, hind angle rounded. Tegmina about four and one-half 
times as long as wide, more than twice as long as hind femora, 
translucent on apical fourth. Wings broad, about one and 
one-half times as long as wide. 
Brown, varying from yellowish sand-color to deep dull red and 
blackish slate; sometimes unicolor, sometimes maculate, some- 
times trifasciate with fuscous. Wings brownish black, with pale 
buffy border, often maculate with fuscous at apex. Hind femora 
trifasciate with black on inside, and sometimes on outside. Hind 
tibiae yellowish or dusky, sometimes with paler annulus near base. 
Measurements. 
Total Body Tegmina Hind femora Anteni^a 
Male 34.5-42 24-28 28-33.5 12.6-14.7 9.5-11 
Female 43.5-53 33-42 36-43 15.5-20.5 11.5-13 mm. 
Owing to its widespread distribution from the Atlantic to the 
Pacific, its conspicuous size and coloration, its habits and haunts, 
this Locust is probably known to more people than any other of 
our common species. In this connection Blatchley's account 
leaves Uttle to be said: "The black- winged locust . . . 
appears to be our most common species . . . because it fre- 
quents the highways and byways of man rather than the pastures 
and meadows where other grasshoppers are wont to congregate. 
Moreover, when disturbed, it more often betakes itself to the bare 
earth than to the green grass. Why this absurd taste? asks the 
person uninitiated in the doings of Nature's objects. For the 
simple reason that the dust of the roadside and the gravel ballast 
of the railway correspond so closely with the color of its back that 
its best friends and worst enemies will overlook it if it will only 
remain quiet. Yea, even that sharp-eyed connoisseur of grass- 
hopper tidbits, the turkey-gobbler, oftentimes walks right over it, 
mistaking it for a wayside pebble." 
Every roadside, footpath, and vacant lot with patches of bare 
soil is its home as well as the sandbank, the gravel-pit, and the 
