OCR Text |
Show 79 sqnarely docked at the tip, leaving no signs of an exposed scutellum, faintly and distantly punctalate. The outline of the middle coxce is impressed through the remains of the insect, showing them to be shaped as in Greophilus and Leistotrophus. The abdomen is as broad as the thorax, not much longer than broad, broadly rounded apically, furnished with hairs on the upper surface and apical tufts as in Creophilu* villosus ( Grav.); there are, however, no signs of punctulation. Length of fragment 12ram, of head 2.5m, n; breadth of same, 3.75mm; length of eyes, 2mm; breadth of same ( as seen from above), .88mm; length of tegmina, 1.75mm; breadth of same, 2mm ; breadth of abdomen, 3.8mm ; length of middle femora, 2.3mm; breadth of same, .65ram; length of middle coxae, 2.5min; breadth of same, l. lmm; length of hind femora, 2mm; of hind tibiae, 2.5mm. 7. Lathrobium abscessttm.- Two fragmentary specimens were taken by Mr. Richardson five miles west of Green Kiver Crossing, Wyoming. The head is smooth, subquadrate, broader than long, with slightly convex sides and hind border, the eyes of medium size, obovate, a little in advance of the middle of the head. Tbe prothorax is smooth, as broad as the head, shaped quite as in L. elongatum ( Linn.), tbe sides straight, the anterior angles rounded off, the whole posterior border well rounded. The abdomen is also as in the species mentioned, with rounded tapering tip, but the elytra are shorter, beipg barely as long as the prothorax, with rounded apices. Length of body 6.25mm, of head .96mm, of eyes .25mraj breadth of head 1.02-; length of prothorax 1.16mm, of elytra lMmm; breadth of abdomen 1.2mm. 8. Oxytelus pristinus.- A single fairly preserved specimen, but of which none of the appendages excepting the elytra are visible, was found ia Chagrin Valley, White Eiver, by Professor Denton. Apart from the labral prolongation, which is as in other species of Oxytelus, the head is subquadrate, slightly broader than long, the eyes occupying the whole lateral outline and but little convex; the sutural divisions of the under surface show through upon the upper surface ( which is exposed to view), obscuring somewhat tbe parts above. The prothorax is somewhat injured, bnt was evidently subquadrate, a little broader than the head, nearly a third broader than long, the front border slightly concave, the outer margin a little convex, the posterior angles and posterior border exactly as in Oxytelus rugosus ( Grav.); the surface is delicately punctu-late as in the species named, and there is a very slight, shallow, and broad median longitudinal sulcation, whose walls, however, are not elevated into ridges, as usual in the species of Oxytelus. The right elytron is expanded, and is, therefore, in the most favorable position for examination ; it is caore than half as long again as broad, the humeral angle well rounded off, the outer margin very gently convex, the apex squarely docked but slightly convex; the surface is covered rather profusely and uniformly with shallow circular punctures resembling those of the prothorax, and averaging about .04mm. in diameter. The abdomen is much as usual in Oxytelus, the sides slightly convex and the tip of the abdomen bluntly and rather regularly rounded ; it was evidently furnished rather abundantly with very fine, short hairs. Length of body 4.2nun, of head .78mm; breadth of same, 8mm; length of eyes, .54 mm; breadth of same, .18mm; length of prothorax, .72ram; breadth of same, .9mm; length of elytra, 1.22ma; breadth of same, .75mm; breadth of abdomen, LIG" 101. 9. Antherophagus priscus.- Several specimens, representing either the upper or the under surface of the body, were obtained by Mr. Richard- |