Tyloderma rufescens Casey, 1892
Source: O'Brien, C.W., Wibmer, G.J. 1982.
Family: Curculionidae
Tyloderma rufescens image
Michael Jansen  
7 T. rufescens n. sp.— Oval, convex, shining, subglabrous, dark rufotestaceous throughout, the elytra almost imperceptibly clouded with small, very remote and blackish spots, unevenly disposed; pronotum and elytra with a few widely scattered recumbent whitish squamules, rather long and very slender in form, and slightly more numerous in an oblique area on each elytron near apical fourth, very easily denuded. Head rather finely, sparsely punctate, with an impressed median fovea; beak in the female very short, scarcely one-half longer than wide; antennae stout, the basal joint of the funicle very robust, rapidly narrowed to the base and not quite as long as the second, the latter much longer than the next two, slender, evenly obconical, outer joint gradually wider, the club robust, as long as the four preceding joints combined. Prothorax scarcely as long as wide, inflated and widest behind the middle, the apex much narrower than the base and strongly rounded; punctures coarse, impressed, very uneven, sparse and scarcely becoming finer toward apex, the median line narrowly and feebly tumid. Elytra at base onefourth wider than the disk of the prothorax, distinctly more than twice as long, the sides parallel and nearly straight in basal half, then gradually rounded, the apex ogival; humeri right, narrowly rounded; striae generally feebly impressed throughout the length, the punctures moderately large, impressed, uneven and remote, becoming very small feeble and elongate toward apex. Legs short, robust, rufo-testaceous, piceous near the coxae. Length 3.2-4.3 mm.; width 1.3-1.8 mm. Indiana. This species is allied rather closely to variegata, but is easily distinguished by its slightly stouter form, pale coloration, wider and more inflated prothorax, much sparser punctuation throughout, the punctures rather larger on the prothorax but smaller and more even on the elytra, and by the shorter beak in the female.