Cylindrotrypetes Zimmerman 1942, new genus
Creators: name: Zimmerman, Elwood C.
Publisher: name: Zenodo
Year: 1942
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Cylindrotrypetes

description: Genus <b>CYLINDROTRYPETES,</b> new genus <i>Body</i> slender, elongate, subcylindrical, finely setose. <i>Head</i> subconical, not laterally constricted behind eyes; eyes coarsely faceted, protuberant, as widely separated below as above, separated from prothorax by at least length of an eye, interocular area fully as broad as base of rostrum. <i>Rostrnm</i> slender, elongate and subcylindrical, three fourths as long as prothorax and about twice as long as head in genotype; antennae inserted just behind middle in both sexes; scrobes distinct, slanting posteriorly, terminating hardly behind fore edges of eyes, upper margin touching anterior edge of eyes, well separated below. <i>Antennae</i> very slender; scape clavate, reaching far behind posterior margin of eye but not reaching prothorax, as long as funicle excluding club; funicle 5-segmented, first two segments elongate, second longer than first; club about half as long as funicle. <i>Prothorax</i> longer than broad, subcylindrical, with a distinct subapical constriction; base subtruncate. <i>Srntellitm</i> minute. <i>Elytra</i> no wider than prothorax, more than twice as long as broad, subcylindrical, <b>with</b> only eight striae in basal half, outer stria complete. <i>Wings</i> atrophied. <i>Legs</i> with femora clavate, not toothed; tibiae short, only about half as long as femora and not longer than tarsi, not carinate, without a terminal uncus or tooth; tarsi with the first segment much smaller than 2, 2 and 3 strongly transverse, about one third as long as broad, 3 bilobed, 4 about as long as 2 plus 3 and projecting well beyond apex of 3. <i>Sternum</i> with fore coxae inserted at or but slightly in front of middle, intercoxal process narrower than breadth of a coxa; side pieces of mesothorax fused, intercoxal process narrower than a coxa, mesocoxae separated about as far as fore pair; metasternum between mid and hind coxae only slightly shorter than length of first two ventrites behind a coxa, metepisterna concealed, but suture distinct, metacoxae separated by less than breadth of a coxa and hardly more widely separated than mesocoxae. <i>Venter</i> with first two ventrites fused, 1 about as long as 2 behind coxae; 2 longer than 3 plus 4, which are subequal and have deeply impressed sutures; 5 as long as 3 plus 4. Genotype: <i>Cylindrotrypetes suffusus,</i> new species. This is an isolated, aberrant genus evidently not closely allied to any other described genus of the tribe. In addition to the New Zealand genera, whose species show no resemblance to the genotype of this genus, there is but one other Pacific genus in the tribe, <i>Tyrpetes</i> Heller 1908 from the Solomons (the Australian <i>Nyella</i> Oke, 1931 does not belong to the subfamily). This genus, however, cannot be associated with <i>Tyrpetes</i> because of many morphological differences including the absence of the terminal unci of the tibiae and the TODO postmedian insertion of the antennae. The absence of the tibial unci is a peculiar and infrequently found character among the Curculionidae.
description: Published as part of <i>Zimmerman, Elwood C., 1942, Curculionidae of Guam, pp. 73-146 in Insects of Guam I, Honolulu, Hawaii :Bernice P. Bishop Museum</i> on page 119, DOI: 10.5281/zenodo.5159964