Physiomorphus antennatus Pollock, 2000

Pollock, D. A., Ide, S. & Costa, C., 2000, Review of the Neotropical genus Physiomorphus Pic (Coleoptera: Mycteridae: Lacconotinae), with description of the larvae of three species, Journal of Natural History 34 (12), pp. 2209-2239 : 2229

Physiomorphus antennatus Pollock sp. n.

( Figures 33 , 47-48, 57)

HOLOTYPE ,, ♂ labelled:`Para, Brazil Acc. No. 2966 / June’, in CMNH.

Derivation of specific epithet

This species is named for the relatively elongate antennomeres on the holotype.

Diagnosis, adult

This species may be separated from its congeners by the following diagnostic combination: antennomeres relatively elongate, not distinctly transverse; lateral margins of pronotum evenly arcuate.

Description, adult

Characters of Physiomorphus , with the following specific features: Body very elongate (TL/GEW 3.75), parallel-sided. Head. Scape relatively elongate, sub fi liform; antennomere 2 about half length of scape; antennomeres relatively elongate, 3-4 sub fi liform; antennomeres 5-10 triangular, increasing in width to apex of antenna; antennomere 11 somewhat narrowed distally, without cleft; distal maxillary palpomere slightly expanded, securiform; eyes moderately large, widely separated. Pronotum relatively narrow ( GPW /PL 1.35), only slightly wider than head ( GPW / GHW 1.07); lateral margins of disc slightly arcuate, widest near midlength, slightly narrower at anterior margin than posterior; discal depressions relatively deep, distinctly de fi ned; punctation shallow, non-umbilicate; setation uniform, sparse. Elytra moderately convex, without suggestions of costae; epipleuron traceable to ventrite 4, relatively evenly narrowed posteriorly; vestiture relatively sparse, not obscuring regular, coarse punctation; apical binding patch only slightly visible dorsally. Abdomen. Sexual setae golden-red, at least half length of V2, directed posteriorly at about 30° angle; male genitalia with paramere with very deep sinuation, beginning in distal third. Colour. Head piceous on vertex and occiput, frons and mouthparts rufous; antennae piceous; prothorax entirely testaceous; elytra piceous, slightly lighter in colour than base of head; legs testaceous, with tarsi and distal half of tibiae slightly infuscated; meso- and metasternum and abdominal ventrites rufopiceous.

Figures

FIGS 29-36. Head (adult, dorsal): (29) Physiomorphus atricolor Pic, ♀; (30) P. melanurus (Champion), ♀; (31) P. suturalis Pic, holotype, ♀; (32) P. rufolineatus Pollock, n. sp., holotype,; ♂(33) P. antennatus Pollock, n. sp., holotype,; ♂(34) P. angustus Pollock, n. sp., paratype,; ♂(35) P. mimeticus Pollock, n. sp., holotype, ♀; (36) P. subcostulatus Pollock, n. sp., holotype,. ♂Scale: 1 mm.