Coptoborus hansen, Smith & Cognato, 2021

Smith, Sarah M. & Cognato, Anthony I., 2021, A revision of the Neotropical genus Coptoborus Hopkins (Coleoptera, Curculionidae, Scolytinae, Xyleborini), ZooKeys 1044, pp. 609-720 : 609

Coptoborus hansen sp. nov. Figure 7J-L, P

Type material.

Holotype, female, Brazil: Bahia, Camacan, Serra Bonita Reserve, 15°23.429'S, 39°33.810'W, 700-100 m, 6-14.V.2013, AI Cognato, SM Smith, CAH Flechtmann (MZUSP).

Diagnosis.

2.3 mm (n = 1), 2.6 × as long as wide. This species is distinguished by the elytral apex attenuate and entire and not produced, declivity interstriae 2 feebly sulcate, declivital interstriae 1-3 denticulate, denticles on interstriae 1 and 3 small and relatively indistinct, interstriae 1 unarmed on apical half, posterolateral margin of declivity with interstriae 3 and 9 joining, forming a carina and continuing submarginally to apex, stout form, and declivital interstriae and striae densely covered with abundant hair-like setae, setae uniformly fine from base to apex.

Similar species.

C. barbicauda , C. bettysmithae , C. capillisoror , C. schulzi , C. subtilis , C. trinity , C. uhura .

Description

(female). Holotype 2.3 mm, 2.6 × as long as wide. Body light brown, elytra darker, antennae and legs lighter. Head: epistoma smooth. Frons dull, finely punctate, setose; each puncture bearing a long, erect hair-like seta. Eyes narrowly and deeply emarginate. Submentum narrow, triangular, slightly impressed. Antennal scape regularly thick, shorter than club. Pedicel shorter than funicle. Club longer than wide, flat, type 3; segment 1 corneous, transverse on anterior face, occupying basal ~1/4; segment 2 narrow, transverse, corneous; segments 1 and 2 present on posterior face. Pronotum: 1.0 × as long as wide. In dorsal view basic and parallel-sided, type 2, sides parallel in basal 2/3, rounded anteriorly; anterior margin with two projecting serrations. In lateral view uniformly rounded without a clear summit, type 1. Anterior slope with densely spaced, narrow coarse asperities, becoming lower and more strongly transverse towards summit. Disc dull with dense, minute punctures, some longer hair-like setae at margins. Lateral margins obliquely costate. Elytra: 1.4 × as long as wide, 1.4 × as long as pronotum. Scutellum minute. Elytra attenuate, parallel-sided in basal 62%, then acutely rounded to apex, apex entire. Disc smooth, shiny; strial punctures moderate, deep, each bearing a semi-erect hair-like seta the length of two punctures; interstriae flat, minutely, densely punctate, unarmed, each puncture bearing a long, erect bristle-like seta. Declivity gradually rounded, occupying ~1/2 of elytra, smooth, shiny, declivital face feebly sulcate; striae weakly impressed, strial punctures larger, deeper than those of disc, each puncture bearing a semi-recumbent hair-like seta as long as 3-5 punctures; interstriae flat, sparsely and inconsistently denticulate, denticles uniseriate, spaced by at least six widths of a denticle, apical half of interstriae 1 without denticles, interstriae 3 denticles faint, setae dense, long, erect, hair-like, 2-3 × as long as interstriae 1 width and uniform in thickness from base to apex, interstriae 1 with two additional rows of slightly shorter setae. Posterolateral margin with interstriae 3 and 9 joining, forming a carina, and continuing submarginally to apex. Legs: protibiae obliquely triangular, broadest at apical 1/4; apical 1/2 of outer margin with eight large, socketed denticles, their length longer than basal width. Meso- and metatibiae flattened; outer margin evenly rounded with nine and eight large, socketed denticles, respectively.

Etymology.

Portrayed by Jeri Ryan, Annika Hansen (Seven of Nine as a Borg drone) is a heroine in the 'Star Trek: Voyager’ (1995-2001) and 'Star Trek: Picard’ (2020) television series. Noun in apposition.

Distribution.

Brazil (Bahia).

Biology.

Unknown.

Figures

Figure 7. Dorsal, lateral, frontal and declivital view of Coptoborus galacatosae holotype, 1.75 mm (A-C, M), C. gentilis holotype, 2.3 mm (D-F, N), C. gracilens 2.4 - 2.5 mm (G-I, O), C. hansen holotype, 2.3 mm (J-L, P). All photographs by SMS.