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Show 64 PB.OF. P. E. UHLEE-ENUMEEATION OF THE [Jan. 15, saddle-shaped, deep-seated, and upturned in the middle, regularly wide on the sides extending downwards. Mesonotum with the dorsal shield long and narrow, carinate in the middle, with the lateral carinate margins spreading apart posteriorly, with the scutellum large, triangular, depressed in the middle. Posterior tibia? with a stout spur below the middle, and the principal one at tip thick and long. Wing-covers gradually and almost symmetrically widening towards the tip, the tip almost bluntly rounded, with the inner arc a little narrower than the outer one; veins of the middle of apex straight, bounding long and narrow areoles, one on either side of the four middle ones forked, those of the upper extremity curved outwards ; middle longitudinal nerve with two curved forks near its tip. Wings with the veins divided into two short forks at the upper extremity and a longer fork next inward of the former, and with two cross-veins forming a chevron beyond the middle. The abdomen is somewhat prismatic, with the central ridge prominent; the venter moderately wide and not quite flat. COTYLECEPS DECOEATA, Sp. UOV. Dull fulvous brown, paler beneath. The cheeks, sides, and summit of the front and middle of the vertex dark piceous. Eyes dark brown. Antennse pale fulvo-testaceous, the basal joint longer than wide. Pronotum and sides and shield of mesonotum fulvous, darker on the sutures and across the base; the scutellum paler. Rostrum and legs pale testaceous. Wing-covers whitish testaceous, extensively marked with pale smoke-brown ; border of the membrane broadly smoke-brown, connected on the lower border with a large interrupted spot which connects on its inner end with broken spots continued across the disk, the apical veins being white break the continuity of the apical border; field of both corium and membrane sparsely flecked, the three transverse veins of the costiil area broadly marked, the inner one connected with a ragged band which nearly crosses the corium; nodal spot long and darker than the uneven series which forms a sort of loop behind it; the membrane beyond this point has three united spots anteriorly and a roundish one adjoining the posterior end of the loop next the margin; wings smoky, with the veins darker. Tergum paler at tip and along the lateral submargin. Length to tip of abdomen 4 mm.; expanse of wing-covers 13 mm. This delicate little insect bears some resemblance to some of the more strongly marked Phryganida? of the genus Hydropsy che. A few specimens were secured at Kingstown and at other points up to an altitude of 500 feet above the sea. AMBLYCEATUS, gen. nov. Form robust, with depressed abdomen, which is fully one-half wider than the breadth across vertex and eyes. Head broad, almost |