Coptoborus janeway, 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 janeway sp. nov. Figure 8J-L, P

Type material.

Holotype, female, Peru: Madre de Dios Dept., Los Amigos Biological Station, CM2, GPS 12.4492°S, 70.2517°W, Smith, Hulcr, 17-18.v.2008, sample Peru 83b 8 cm diameter branch (MUSM). Paratypes, female, as holotype (MSUC, 1); as holotype except: sample Peru 96c 1 cm diameter branch (MSUC, 1).

Diagnosis.

2.0 mm (mean = 2.0 mm; n = 3), 2.86 × as long as wide. This species is distinguished by the elytral apex attenuate and strongly emarginate, declivity convex, declivital interstriae 2 denticulate, elytral apex with interstriae 3 and 9 joining, forming a crenulate carina that continues submarginally to apex, declivital interstriae 3 with fewer than ten denticles, elytral apices obtuse, declivital striae not impressed, elytral apex crenulations small and fine, and declivital slope gradual, occupying 57% of elytral length.

Similar species.

C. furiosa , C. inornatus , C. martinezae , C. tolimanus , C. vasquez .

Description

(female). Holotype 2.0 mm, 2.86 × as long as wide. Body light brown, elytra darker, antennae and legs lighter. Head: epistoma tuberculate. Frons subshiny, finely punctate, setose; each puncture bearing a long, erect hair-like seta. Eyes narrowly and deeply emarginate. Submentum narrow, triangular, deeply impressed. Antennal scape short and thick, as long as club. Pedicel shorter than funicle. Club circular, obliquely truncate, type 2; segment 1 corneous, convex on anterior face, occupying basal ~2/5; segment 2 narrow, convex, corneous; segments 1 and 2 present on posterior face. Pronotum: 1.1 × as long as wide. In dorsal view long and rounded frontally, type 7, sides parallel in basal 2/3, rounded anteriorly; anterior margin without serrations. In lateral view elongate, disc longer than anterior slope, type 7, summit prominent, on anterior 2/3. Anterior slope with densely spaced, broad fine asperities, becoming lower and more strongly transverse towards summit. Disc strongly shiny with moderately dense, minute punctures, some longer hair-like setae at margins. Lateral margins obliquely costate. Elytra: 1.7 × as long as wide, 1.5 × as long as pronotum. Scutellum small. Elytra attenuate, parallel-sided in basal 63%, then acutely tapered to apex, apex weakly emarginate. Disc smooth, shiny; striae minutely punctate, glabrous; interstriae flat, sparsely, minutely punctate, unarmed, glabrous. Declivity gradual, occupying ~1/3 of elytra, smooth, shiny, declivital face convex; striae not impressed, strial punctures larger, deeper than those of disc, each puncture bearing a semi-erect seta as long as two punctures; interstriae flat, interstriae densely denticulate along their entire lengths, separated by at least the width of four denticles, interstrial setae erect, thick, bristle-like, uniseriate, interstriae 1 with two additional rows of shorter erect hair-like setae. Posterolateral margin with interstriae 3 and 9 joining, forming a minutely denticulate carina and continuing submarginally to apex. Legs: protibiae obliquely triangular, broadest at apical 1/3; apical 2/3 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.

Portrayed by Kate Mulgrew, Captain Kathryn Janeway is the heroine in the television series 'Star Trek: Voyager’ (1995-2001). Noun in apposition.

Distribution.

Peru (Madre de Dios).

Biology.

The species has been collected from branches and twigs of unidentified trees 1-8 cm in diameter.

Figures

Figure 8. Dorsal, lateral, frontal and declivital view of Coptoborus incomptus holotype, 1.7 - 1.9 mm (A-C, M), C. incultus holotype, 2.3 mm (D-F, N), C. inornatus paratype, 1.8 mm (G-I, O), C. janeway holotype, 2.0 mm (J-L, P). All photographs by SMS except G-I, O by T. H. Atkinson, copyright National Museum of Natural History, Smithsonian Institution, Washington, D. C., published by permission.