14 Naturau History BuLuEtin. 
punctured; shoulders prominent, not acute; discal lines short, 
indefinite. Abdomen as wide as the elytra; the first segment 
three times wider than long; the basal carinz nearer to each 
other than to the margin, variable in length, but always short. 
Legs long, slender, the posterior tibia with a terminal process 
which is straight in the 4, contorted in the g. The ventral 
sexual marks consist of a large deep fovea near the apex, 
which has straight or convex anterior limits. Eyes (2) lunate, 
small; the apex of the abdomen pointed, produced. 
Habitat. A common species, occurring in the northern 
half of California, and in Oregon and Washington, as well as 
in the British possessions. 
B. MONTICOLA, Casey. Black, shining, impunctate, antenne, 
legs and palpi red, pubescence coarse. Length 2.2 mm. 
flead as wide as long, eyes finely granulate, sides of the 
head behind them convergent, feebly arcuate, occiput carinate, 
occipital fovee nude, elongate, situated on a line passing 
through the eyes, circumambient sulcus well impressed, the 
portions of the vertex outside of the sulcus with large shallow 
punctures, and carinate on the lateral declivity. Frontal mar- 
gin deeply depressed between the broad and pubescent supra- 
antennal tuberculations. Anfenne not longer than the head and 
prothorax together; first joint slightly arcuate and cylindrical, 
twice as long as thick; second to eighth subequal, conico- 
cylindrical; ninth slightly transverse; tenth wider, transverse, 
not longer than the ninth and obliquely truncate, (4) cuneate; 
eleventh slightly wider than the tenth and as long as the three 
preceding together, rounded at the base, obliquely conical 
toward the end, not acuminate. Prothorax widest near and 
before the middle, as wide and as long as the head, strongly 
arcuate, sinuate to the base behind; disk convex, smooth; 
median fovea large, prolonged for a short distance anteriorly; 
the lateral small, with lateral parallel longitudinal grooves; 
transverse sulcus arcuately limiting the leaf shaped anteriorly 
pointed elevation with its central puncture on each side of the 
median fovea and the basal median carina; the posterior 
