Coptoborus papillicauda sp. nov. Figure 12G-I, O

Type material.

Holotype, female, Suriname: Sipaliwini, 2.977312°N, 55.38500°W, 200 m, Camp 4 (low), Kasikasima, T. Larsen, 20-25.iii.2012, FIT, SR12-0320-TN1, 2012 CI-RAP survey (NZCS).

Diagnosis.

2.0 mm (n = 1), 3.33 × as long as wide. This species is distinguished by the elytral apex attenuate and entire, declivital interstriae 2 convex, declivital interstriae 1 and 3 denticulate and interstriae 2 unarmed, declivital subapical margin armed with three denticles, and declivital interstriae 1 denticles large, 1-2 × high as wide.

Similar species.

C. chica .

Description

(female). Holotype 2.0 mm, 3.33 × as long as wide. Body light brown, elytra darker, antennae and legs lighter. Head: epistoma smooth. Frons subshiny, finely punctate, setose; each puncture bearing a long, erect hair-like seta. Eyes broadly and moderately emarginate. Submentum large, triangular, deeply impressed. Antennal scape short and thick, much shorter than club. Pedicel shorter than funicle. Club circular, flat, type 3; segment 1 corneous, weakly convex on anterior face, occupying basal ~2/5; segment 2 narrow, transverse corneous; segments 1 and 2 present on posterior face. Pronotum: 1.3 × as long as wide. In dorsal view long and rounded frontally, type 7, sides parallel in basal 4/5, rounded anteriorly; anterior margin without serrations. In lateral view elongate, disc longer than anterior slope, type 7, summit prominent, on anterior 3/4. Anterior slope with densely spaced, broad fine asperities, becoming lower and more strongly transverse towards summit. Disc strongly shiny with sparse, minute punctures, some longer hair-like setae at margins. Lateral margins obliquely costate. Elytra: 2.0 × as long as wide, 1.5 × as long as pronotum. Scutellum minute. Elytra attenuate, parallel-sided in basal 3/4, then acutely rounded to apex, apex entire. Disc smooth, shiny; striae minutely punctate, glabrous; interstriae flat, sparsely, minutely punctate, unarmed, each puncture bearing a long, erect seta. Declivity gradually rounded, occupying ~1/3 of elytra, smooth, shiny, declivital face weakly convex; striae very shallowly impressed, strial punctures larger, deeper than those of disc, glabrous; striae 1 irregular, slightly laterally broadened from base to declivital midpoint and then narrowing towards apex; interstriae flat, interstriae 1 and 3 each with three large denticles, interstriae 2 unarmed, those of interstriae 1 and 3 subequal, 1-2 × high as wide, interstriae with a sparse row of erect bristle-like setae. Posterolateral margin with interstriae 3 and 9 joining, forming a feebly carina armed with three large, acute denticles and continuing submarginally to apex. Legs: protibiae obliquely triangular, broadest at apical 1/5; apical 1/2 of outer margin with six large, socketed denticles, their length longer than basal width. Meso- and metatibiae flattened; outer margin evenly rounded with eight and seven large, socketed denticles, respectively.

Etymology.

L. papilla = rounded protuberance of the body, cauda = tail. In reference to the appearance of papillae (granules) on the declivity. Noun in apposition.

Distribution.

Suriname.

Biology.

Unknown.