Cylindrotrypetes, Zimmerman, 1942

Zimmerman, Elwood C., 1942, Curculionidae of Guam, Insects of Guam I, Honolulu, Hawaii: Bernice P. Bishop Museum, pp. 73-146 : 119

Genus CYLINDROTRYPETES , new genus

Body slender, elongate, subcylindrical, finely setose. Head 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. Rostrnm 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. Antennae 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. Prothorax longer than broad, subcylindrical, with a distinct subapical constriction; base subtruncate. Srntellitm minute. Elytra no wider than prothorax, more than twice as long as broad, subcylindrical, with only eight striae in basal half, outer stria complete. Wings atrophied. Legs 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. Sternum 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. Venter 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: Cylindrotrypetes suffusus , 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, Tyrpetes Heller 1908 from the Solomons (the Australian Nyella Oke, 1931 does not belong to the subfamily). This genus, however, cannot be associated with Tyrpetes 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 .