OCR Text |
Show 214 PROF. P. R. UHLER O N T H E [Mar. 6, bristly towards the base; the membrane has a pale longitudinal suture throughout, with a thick vein on the middle which does not quite reach the end of the loop that is formed by the two veins which run parallel to the margins and which converge on the tip; no transverse veins as in Brachymetra. In some specimens the acute tip of the scutellum projects from between the metanotal plates, in others it is atrophied. In two specimens the basal joint of tarsi was present on one side, and not on the other. HYMENOBATES, gen. nov. Narrower and somewhat more elongate in form than the male of Halobates picta, H.-Schf. Head with the front of the same form as in Metrobates, Uhler. Antennae tapering in the direction of the tip; the basal joint long, fusiform, tapering narrowly on the apical third, armed beneath near base with a group of long spines and at the tip with a stronger spine ; the second joint exceedingly short; the third less than one half as long as the first, armed with a stout triangular tooth which is followed by a bundle of bristles ; the fourth shorter, curved and pointed like a claw. Bostrum short and stout, extending between the anterior coxae, the first and second joints exceedingly short, the third very long and acutely tapering. Pronotum longer than wide, moderately convex, ending ovately above the scutellum; the humeral angles almost obsolete, and the narrow reflexed margin sloping anteriorly away from them. The anterior legs short, with the tibiae thick and expanded; the middle pair very long and slender; the posterior pair shorter, with long thick coxae ; the femora a little less thick than the coxae, but curved, and like them set with bristles, also with two long spines near the tip and a knob-like callosity at base ; the tibiae a little longer, tapering at both ends, fringed with two bundles of stiff bristles between the middle and tip; tarsi about half as long as the tibiae, very slender, tapering almost to a bristle towards the tip. Hemelytra, including the membrane, twice as long as the pronotum; the corium narrow, almost linear, with the costa thick and the costal cell not conspicuous, but the discoidal cell very long and narrow, triangular at tip and sending off from the inner angle a single vein obliquely across the membranous part of this organ; a transverse suture with a vein forms the boundary for the base of membrane; the clavus is minute and almost concealed, the remainder of the corium is thin like a membrane ; the membrane is much longer than the corium, elongate-oval, with two long veins which unite at tip to form a loop. The abdomen is short and subcorneal. HYMENOBATES IMITATOR, sp. nov. Yellow beneath, black above, with the base of antennae, a band near their tip, and a transverse spot in front of pronotum, as also the coxae, yellow. Membranous part of the corium bluish, the membrane smoke-brown ; the sutures, a curved line on the side of |