474 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Sand Locust; Long-horned Locust. 
Psinidia fenestralis (Serville). 
Plate 10, fig. 3-5; Plate 21, fig. 23. 
Oedipoda fenestralis Serville, Hist. Nat. des Ins., Orth., p. 726 (1839). 
Oedipoda eucerata Scudder, Boston Journ. Nat. Hist., vol. 7, p. 472 (1862). — 
Smith, Rept. Ct. Bd. Agric. for 1872, p. 373 (1873). 
Locusia eucerata Harris, Treatise, 3d ed., p. 180 (1862). 
Psinidia fenistr alls Fernald, Orth. N. E., p. 44 (1888). 
Psinidia fenestralis Morse, Psyche, vol. 7, p. 112 (1897). — Walden, Bull. 
Geol. Nat. Hist. Surv. Ct., no. 16, p. 103 (1911). 
Body of medium size, of male slightly compressed, of female 
slightly depressed, the sahent features of sculpture, such as the 
minor carinae and the sulci, accentuated. Eyes small but promi- 
nent. Disk of metazone minutely tuberculate, the hind margin a 
little acute with sides slightly concave, continuously arcuate with 
hind margin of lateral lobes. Tegmina very narrow, of nearly 
equal width throughout, apex rounded, sometimes tapering. 
Wings narrow, apex rounded, disk occupying scarcely more than 
two-fifths; the fuscous band at its broadest equal to disk, solid, 
reaching costal margin, fading out posteriorly; beyond this clear, 
veins infuscated, apex in male fuscous. 
General color varying from pale ashy or buff through reddish 
brown to nearly black, according to the environment. A char- 
acteristic color pattern is evident in many individuals. This 
consists of a dark area covering the crown of the head and disk of 
pronotum, and often the dorsal part of the closed tegmina, 
bounded on the head by a narrow pale line extending back from 
each eye, which is continued on the pronotum mesad of the lateral 
carinae, giving a more or less hourglass-shaped dark area on the 
disk. Whatever the ground color or pattern of marking, the 
hind femora are almost invariably and conspicuously obliquely 
trifasciate with fuscous and the sutures of the ventral side of the 
thorax and abdomen decidedly darkened, giving a striking 
segmented appearance to the under side of the body. Hind 
tibiae pale, the apex and base dusky and usually a dusky cloud on 
the middle. 
Measurements. 
Total Body Tegmina Hind femora Antenna 
Male 20-24 15-17.5 15.5-20 ^11.7 10.7-12.3 
Female 23-30 19-25 17.5-24 11-13.5 10 -12 mm. 
