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Show 293 beyond it on the costal margin is a whitish stigma extending nearly half- way to the tip of the wing; veins at apex black. Length of body, 24mm; of antennte, 9.25ram; of pronotnm, 4.6min ; of tegmina, 22.5mra ; of hind femora, 10mm. 1 $ , Northern New Mexico, August to September, Lieut. W. L. Carpenter. 42. Psinidia sulctfrons, nov. sp.- Very pale cinereous; upper half of the head, but especially the summit, sprinkled with blackish fuscous dots, and behind the eye a short, rather broad, longitudinal fuscous bar; summit of head much depressed be-' tween the eyes, and scarcely so broad as their width when seen from above; antennte of male scarcely as long as the hind tibia?, fuscous on the apical half. Median carina of pronotnm not very elevated, nearly equal, the posterior portion of the anterior lobs very short, transversely corrugated; posterior lobe transversely rugose and punctate; the lateral carina; with a narrow, blackish, fuscous stripe, in continuation of that on the head, the deflected lobe with an anterior, mesial, quadrate, blackish fuscous patch. Tegmina extending much beyond the tip of the abdomen, flecked with blackish dots at the extreme base, especially on the costal and anal fields, beyond with two large quadrate, blackish fuscous, costal patches, infringing a little on the median field, one in mid- wing, the other in the middle of the basal half; the apical half of the tegmina are nearly pellucid, especially in the middle field, with hoary veins; but it is flecked with a few dark fuscous dots, mostly clustered into minute equidistant spots, near, but not upon, the upper and lower borders; wings pellucid, the base suffused very faintly with lemon as far as the arcuate belt, which crosses the middle of the wing; the belt is moderately broad, reaches the lower border, but does not extend far toward the anal angle, and in the preanal area sends a rather slender tapering shoot nearly half- way to the base ; all the veins and cross- veins of the wing are yellowish white, exceptiug at the extreme tip and next the costal margin, where they are black; the uppermost radial of the anal field is also black. Length of body, 18.5mm; of antennas, 9.75mm; of pronotum, 3.8mm; of tegmiua, 21.5mm; of bind tibia), 10mm. 1< J, near Mojave River, Southern California, July, No. 870, Dr. O. Loew. In several particulars, but especially in the brevity of the antennae, this is rather an aberrant member of the genus Psinidia. DEROTMEMA, (<%> V> W/< 0i nov* 9en- Closely allied to Psinidia. Head of moderate size, the face a little oblique, sharply ridged, the eyes large, globose, very prominent, farther apart above than twice the extreme width of the basal joint of antennte ; fastigiura of vertex very deeply channeled, with exceedingly high, sharply- compressed, lateral carinas, which, as soon as they have left the edge of the eyes, bend toward each other at an acute angle, closely approximate, and continue distinctly down the face as lateral raised edges of the frontal costa; summit of head with a slight median carina, which at the extreme front of the fastigiuui divides and strikes against the lateral carinas; directly at this fork commences a deep sulcus, which unites uninterruptedly with that of the frontal cos£ a; this costa, expanding a little at the ocellus, again contracts slightly, and then expands greatly; the lateral carina) of the face equally prominent with, and parallel to, the borders of the frontal costa; antennae very long, depressed cylindrical, with elongated joints. Pronotnm much as in Psinidia, the median carina quite the same ; surface of disk rugose, the posterior border rectangular. Tegmina reaching beyond the tip of the abdomen, straight, the costal shoulder rather prominent and angular ; the intercalary vein is prominent, and ruus along the middle of its area; the axillary vein is free, though occasionally united at its tip with the anal vein by a cross- nervure ; rneso- and metaHternnui about equally distant in the male. Hind femora extending beyond the tip of the abdomen, rather slender, the carinas very moderate ; arcuate, apical, inner spurs of hind tibia) equal. 43. Dcrolmema cupidineum, nov. sp.- Cinereo- fuscous, darkest above; a slender, black band unites the middle of the eyes in front, directly above the base of the antennae; a similar black or blackish stripe unites the middle of the eyes above, on the summit, traversing the fastigium ; besides which, there is a more or less distinct, median, longitudinal, black stripe on the summit, and an arcuate black stripe back of the upper part of the eye; autenna) pale toward the base, blackish fuscous toward the tip, aud, excepting at the tip, the alternate joints paler, giving them an annulate appearance. Posterior portion of anterior lobe of pronotum with subdorsal crescentic carime, much as in Trachyrhachys aspera; posterior edge of pronotum dotted with black ; center of deflected lobes with a small, quadrate, black spot. Tegmina with the middle field nearly immaculate, the others with blackish fuscous spot* linearly arranged, most abundant and most distinct on the basal two- thirds; wiugs lacteous at base ( yellowish in life T) with a rather strongly arcuate, moderately broad, blackish fuliginous band, its inner edge crossing the middle of the wing, extending along the lower margin halfway to the anal angle, and in the preanal area sending a moderately broad, loug, tapering shoot more than half- way to the base; the band is slightly obsolescent along the ulnar veins; the apex of the wing is pellucid, with blackish cross- veins, often edged with a fuliginous cloud, especially on either side of the ulnar vein apically. Hind femora with faint fuscous basal, median, and post- median blotches on the upper surface, AP. J J- 18 |