LOCUST EAVAGES IN CALIFOENIA. 
245 
carina usually obsolete behind, more distinct in front where it extends to the trans- 
verse incision in the posterior part of the median foveola of the vertex. Vertex in 
front of the eyes deflexed at about an augle of 25° from horizontal ; margins raised 
forming an ovate median foveola which is narrowed and closed in front ; there is 
usually a slight but distinct linear transverse depression across the posterior part of 
this foveola opposite the upper canthus of the eyes ; there is also occasionally visible 
a very minute median carina, but this has been observed only in some of the Califor- 
nia specimens, in which the lateral margins are rather less elevated than in the speci- 
mens obtained elsewhere ; lateral foveola more or less distinct, triangular, the sharpest 
angle forward, base pressed closely against the eye. Frontal costa rather broad, nar- 
rowed, prominent and punctate above, widened and slightly depressed at the ocellus, 
slightly narrowed and soon fading out below the ocellus, not reaching the clypous; it 
is rather more than usually broad at the ocellus and not sulcate above or below it. 
Antennae scarcely reaching beyond the tip of the pronotum, rather slender, some- 
what flattened and very slightly enlarged toward the apex. Eyes rather small, not 
prominent ; posterior margin semicircular, less convex in front. Pronotum short, the 
greatest length about equal to the depth ; the constriction, which is slight, very near 
the front, expanding posteriorly ; the median and lateral carinas distinct, extending 
the whole length ; the median subcristate, straight on top, or very nearly so, usually 
distinctly, but sharply, severed in advance of the middle by the posterior sulcus; the 
lateral carinas are sharply defined, but less prominent than the median, parallel on 
the front lobe, but diverging from thence to the posterior margin. These (lateral 
carinas) are usually more or less distinctly severed by one of the transverse impressed 
lines, but vary as to the one, sometimes by the first, sometimes by the second, some- 
times by the third, and occasionally by two of them. The dorsum is flat and not 
granulated or rugose; the anterior margin very obtusely angled ; posterior margin 
forming an angle a little larger than a right angle, rounded at the extreme tip ; pos- 
terior lateral angle about a right angle. Elytra rather narrow, furnished with a dis- 
tinct intercalate vein ; basal half opaque, apical half, or at least the apical third, 
nearly transparent, extending slightly — from one-tenth to one-fifth their length — be- 
yond the tip of the abdomen. 
The wings rather less than medium width, very thin and delicate, resembling very 
closely the wings of C. spretus, but more delicate and transparent ; the width of the 
subcostal'area is marked on the external ^ apical) margin by a distinct notch. 
Abdomen in both sexes very distinctly carinated above. In the female the cerci, 
as usual, very small, the valves of the ovipositor are quite slender and very sharp. 
In the male the cerci are rather longer than usual in (Edipodini, cylindrical, slightly 
tapering, the tip of the abdomen usually curved more or less upward, the subanal 
plate curving upward strongly, somewhat prolonged, tapering, and broadly subtrun- 
cate at the tip ; it and the cerci slightly hairy. 
Posterior femora rather slender for the group to which the species belongs, upper 
carina elevated, entire, and very thin and sharp ; in the females they scarcely reach 
the tip of the abdomen — the same thing appears to be true in reference to the males. 
The posterior tibias very slightly shorter than the femora, slender ; the spurs at the 
base robust ; the spines rather small, usually nine or ten in the outer and ten or 
eleven in the inner row. 
Color. — The general or ground color of the California specimens is considerably 
lighter than that of the Eocky Mountain or eastern specimens ; if a number, with 
the wings closed, are placed together there is a quite distinct dull yellowish shade 
observed ; but the general color is a dull (earthy) brown, varied by lighter and darker 
shades, the dark shade increasing toward the head, being a decided brown on the 
head and pronotum — not so distinct in the California specimens. The cheeks and 
sides of the posterior lobe of the pronotum dull yellow. The chief characteristic 
markings are to be found on the elytra ; these have a yellowish ray more or less 
tinged with reddish extending along the inner margin from the base to where it fades 
