OCR Text |
Show 85 anceof short elytra; a third and fourth specimen are still more fragmentary. The snout is shaped much as in Otiarhynchus perditus Scudd., being short, stout, and, especially anteriorly, arched, the front border being faintly angulate about the middle; the antennal scrobes cannot be certainly defined; the eyes are pretty large, transversely ovate, and are, in most of the specimens, indicated on the stone by ail annulus of dark color, containing an interior narrow ovate pale spot .22mm long by .12 ^ wide; while the eye itself is Amm in its longer and .3ram in its shorter diameter; the facets of the interior portion are very minute, being scarcely .01 ^ in diameter. The prothorax is somewhat tumid, rather higher than long, very profusely and delicately punctulate, the anterior and posterior walls between the pittings often less elevated than the lateral walls, so that the punctures often form broken longitudinal furrows ; the punctures are nearly uniform in size over the whole prothorax and average about .04mm in diameter. The elytra are simple, not tumid, sloping off gradually toward the tip, not elevated at base above the thorax, and provided with six equidistant, very slender and slight, raised ridges, faintly broken into dashes by a series of minute, moderately distant punctures along the inner border of each; these punctures are of the same size as those on the prothorax; the ridges are about .16 nm apart. The posterior coxae have an incrassate posterior margin. Length of body, 4mro ; of rostrum beyond the eye, .68mm ; width of same, .46mm; length of prothorax, 1.2mm; height of same, 1.3mm; length of tegmina, 2.8mm; width of same, .9mm. 25. Eudiagogu* examinis.- A considerable number of specimens, of this insect were obtained by Mr. Richardson with the preceding species. All were fragmentary, and most of them rather obscure; they consist mostly of side aspects of the creature, but several are single elytra. The head is rather large at base, tapering, with a short, broad snout, not so deep as broad, equal and at the tip broadly rounded, directed downward and forward, slightly bent along the front margin; the antennal scrobes extend from the front edge of the eye nearly to the end of the rostrum, and are broadest next the eye, where they are half as broad as the eye itself, tapering regularly throughout and shallow; the eyes are moderately large, broadly oval, transverse or a little oblique, the upper extremity thrown backward and the lower forward. The prothorax is short, only about half as long as deep, not tumid, rather cylindrical, its surface smooth. The elytra are not broader nor higher at their base than the surface of the pronotum, and they are simple and famished with seven equidistant, equally and not deeply impressed, longitudinal strise, .16°"° apart from one another, and the outer ones from the adjacent border; these striae are provided with slightly longitudinal punctures at regular intervals of about . lmB, by which the striae are carried to about double their usual depth. Some of the specimens have lost the elytra, and on these the posterior edge of the hind coxae have been impressed through the abdomen, giving the insects the appearance of being furnished with elytra which cover but half of the abdomen. The same thing was noticed in other species. Length of body, exclusive of rostrum, 5.75ram ; of rostrum beyond the eye, .62B, B; breadth of same, ,5mm; depth of same, .44flOT; length of eye, .36**; width of same, .24mm; length of prothorax, .72naB^ height of same, 1.3"; length of elytra, 3.05mm; width of same, 1.2-; length of fore femora, .72"*; width of same, .32mnB; length of middle femora, • 8-; width of same, .32mm; length of hind femora, l. lraqi; width of same, .34nMn. 26. Eudiagogu* effossus.- This species is represented by a number of fragments brought by Mr. Richardson from the same place as the pre- |