Acanthoderes

Vertex densely micropunctate from area between antennal tubercles, slightly sparser toward prothoracic margin; area between antennal tubercles and just after posterior margin of upper eye lobes with dense yellowish-brown pubescence obscuring integument, except one nearly glabrous reentrance on each side near upper eye lobes. Antennal tubercles with slight longitudinal sulcus near base, densely micropunctate basally, gradually smooth toward apex; with somewhat bristly yellowish-brown pubescence on wide central area, glabrous on center and laterally. Median groove distinct from clypeus to near anterior prothoracic margin. Pronotum with large conical tubercle with blunt apex on each side from about anterior fifth to after middle; with wide longitudinal gibbosity centrally, narrowed and more elevated along middle length; with yellowish-white pubescence obscuring integument, except glabrous apex of dorsal and lateral tubercles and central gibbosity, and two circular spots on each side with dark-brown pubescence. Elytra with grayish-yellow pubescence obscuring integument, interspersed with irregular small areas with white pubescence, except nearly glabrous along carina; with moderately short, erect, sparse brownish setae on anterior 2/3. Meso- and metatibiae with narrow anterior ring with brownish pubescence, followed by narrow ring with grayish pubescence, yellowish-brown ring until apex of anterior third, wide grayish ring until just after middle, wide ring with dark-brown, bristly, thick setae toward apex. Protarsomeres entirely dark, with very long, dense dark setae laterally on tarsomeres I–III, brown mixed with dark yellowish-brown, long, dense setae ventrally on tarsomeres I–II, short, dense, yellow ventrally on tarsomere III. Meso- and metatarsomere III with black setae dorsally, yellow and dense ventrally; meso- and metatarsomere V with moderately sparse grayish pubescence, interspersed with long, erect, dark setae toward apex.

Literature