OCR Text |
Show 86 ceding species. They are mostly composed of fragments of elytra, and the only specimeus which are preserved entire are such as give a dorsal or ventral aspect. These, however, are enough to show thatthey belong to a speciesMslosely allied to but distinct from the preceding, from which it differs principally in its smaller size, its slenderer and more tapering rostrum, the smaller circular eyes, and in the slightly more distant and rather more deeply impressed striae of the elytra. The following measurements will give a better understanding of the degree of difference between them in certain points. - Length of body, exclusive of rostrum, 5mm ; breadth of same, 2.1**; width of rostrum at base, ASmm; diameter of eyes, .28"^ ; distance apart of the elytral strife, .18-. 20mm ; distance apart of punctures in the stria', . llmm. 27. Eylobius provectus.- A single specimen was found by Mr. Richardson with the preceding species. It is very poorly preserved, being not only fragmentary but faintly impressed; the rostrum is broken, so that its length cannot be determined, but the general facies of the insect re-sembles that of H. picivorw Germ, so closely that it must be referred to the same genus, The rostrum is rather stout; the antennal scrobes are slender, and commence not far beyond the eyes; the eyes are very large, transverse obovate, with an interior clear space, as described in Eudiagogus saxatilis Scudd., with very small facets, scarcely .02 ™ in diameter. The thorax is rather small, but apparently partially concealed by the way the specimen is crushed, not very tumid, and entirely smooth. The elytra are of much the same form as those of the species of Eudiagogus just described, provided with slender, shallow, impressed lines, about .22mro apart j the latter are rather delicately punctured, the punctures a little less distant from one another than are the rows ; the number of rows cannot be determined from this specimen. Length, exclusive of rostrum, 5mm; length of broken rostrum, .45mn; of eyes, .9mm; breadth of same, .44mm; length of elytra, 4mm. 28. Anthonomus dtfossus.- A single well- preserved specimen, presenting a side aspect, was obtained by Mr. T. L. Mead near Castello's ranch, South Park, Colorado. It is nearly as large as A. hoematopu* Boh., with a slightly more carved rostrum, slightly transverse eyes, and with more abundant pitting of the prothorax, which is also less obscured by hairs. The head is smooth, covered vfery sparsely with very fine, short, almost invisible hairs, directed downward; the antennal scrobes appear to be rather shallow. The prothorax is covered with exactly similar hairs, very distant, apparently arising only on the sharp ridges between the pits with which the surface is completely studded; these pits are rather deep, rounded, about .032mm in diameter, and as closely crowded as possible; the thoracic pleura are similarly pitted, but with a little le^ s frequency, and therefore with coarser bounding walls. The elytra are coarsely ridged with nine equidistant, stout, rounded costte, . tmm apart, the fourth from the outer border terminating between the conjoined apices of those on either side of it; they are rather more prominent and more distant than in A. hcematojyus; the whole surface of the elytra, both costie and furrows, is dull rugulose. The legs are similar to those-of the living species mentioned, but are somewhat shorter. Length from front of head to tip of elytra, 2.2mm; length of rostrum, Mmm; width of same, . llmm; length of prothorax, .54mm; of middle femora, .72mm; breadth of middle femora, .17mra.; length of eye,- lSmm; breadth of same, .14mm. 29. Cryptorhynchus annosus.- A single specimen was found by Mr. Richardson beyond the Green River crossing of the Union Pacific Kail-road. The fragmentary specimen is exposed on a side view, with head, |