Dryophthoroides telnovi Legalov, 2022

Legalov, Andrei A., 2022, Four new species of the genera Dryophthoroides Roelofs, 1879 and Nephius Pascoe, 1885 (Coleoptera, Curculionidae) from Oriental and Papuan Regions, Ecologica Montenegrina 58, pp. 42-49 : 43-44

Dryophthoroides telnovi Legalov , sp. nov.

https://zoobank.org/ urn:lsid:zoobank.org:act:2413A957-AA3E-41C2-BA3D-09CCDD4BDB46

( Figs. 1A, 1E )

Type material: Holotype, female ( NME), INDONESIA: New Guinea, Papua Prov., Star Mountains, 22-27 km SSE of Oksibil, 5 km around Beringin vill., 5°5’01”S, 140°43’27”E, 250-320 m, primary and secondary lowland montane rainforest, 12-14.III.2018, D. Telnov.

Description. Female: Body black, subglabrous. Antennae, tarsi and uncus red-brown. Head nearly conical. Rostrum subcylindrical, curved, about 0.9 times as long as pronotum, about 2.7 times as long as wide at apex, about 2.8 times as long as wide in middle, about 2.9 times as long as wide at base, densely punctate, with middle ventral carina. Apex of rostrum nearly smooth. Eyes large, coarsely faceted, not protruding from contour of head, linear, narrowly separated beneath. Forehead flat, about 0.7 times as narrow as rostrum base width, finely punctate. Temples short, punctate. Antennal scrobes directed ventrally to base of rostrum. Antennae short, inserted before middle of rostrum, reaching pronotum. First antennomere elongate conical, 2.4 times as long as wide at apex, nearly extending towards eyes. Second antennomere suboval, about 1.4 times as long as wide at apex, about 0.4 times as long as and 0.7 times as narrow as first antennomere. Third antennomere conical, equal in length and width, 0.7 times as long as and subequal in wide to second antennomere. Fourth and fifth antennomeres wide-conical. Fourth antennomere 0.5 times as long as wide at apex, about 0.6 times as long as and about 1.1 times as wide as third antennomere. fifth antennomere 0.4 times as long as wide at apex, 0.9 times as long as and about 1.1 times as wide as fourth antennomere. Antennal club obliquely truncate, apically tomentose, 1.5 times as long as wide in middle, nearly equal to antennomeres second- fifth combined. Pronotum nearly bell-shaped, about 1.3 times as long as wide at apex, little longer than wide in middle and at base. Disk slightly flattened, quite coarsely and densely punctate. Sides nearly straight. Scutellum small, narrow, immersed. Elytra suboval, about 1.7 times as long as pronotum, about 1.4 times as long as wide at base, about 1.3 times as long as wide in middle, about 1.7 times as long as wide at apical fourth. Humeri flattened. Elytral striae distinct. Ninth stria merges with tenth stria near metacoxa. Interstriae weak convex, with row of points, distinctly narrower than striae. Precoxal portion of prosternum long, slightly shorter than procoxal cavity. Postcoxal portion of prosternum short, 0.5 times as long as precoxal portion. Procoxal cavities contiguous. Metaventrite weakly convex, punctate, about 1.2 times as long as metacoxal cavity. Abdomen convex, densely punctate. First and second ventrites fused, equal in length. First ventrite about 0.7 times as long as metacoxal cavity. Third and fourth ventrites subequal in length. Third ventrite about 0.6 times as long as second ventrite. Fifth ventrite 2.5 times as long as fourth ventrite. Procoxae large, spherical. Femora weakly thickened and flattened, lacking teeth, densely punctate. Femora nearly straight, with lateral carinae, with large uncus and two groups of setae at apex. Tarsi long. First - third tarsomeres conical, with erect setae ventrally. Second tarsomere shorter than first tarsomere. Third tarsomere slightly narrower than first tarsomere. Fifth tarsomere elongate. Tarsal claws free, divergent. Total body length (without rostrum) 4.1 mm. Length of rostrum 1.1 mm.

Differential diagnosis. The new species is similar to D. seftoni (Zimmermann, 1944) from Papua New Guinea bit differs in the shorter and thicker rostrum and the narrower pronotum. It can be distinguished from D. beccarii (Pascoe, 1885) from Indonesian New Guinea in the smaller body size, the thicker rostrum, the coarser punctured pronotum, the not subparallel elytra and the narrower elytral interstriae.

Etymology. Patronymic. In honour of Dmitry Telnov (Natural History Museum, London, United Kingdom), who studies the biodiversity of New Guinea beetles.

Localisation. New Guinea: Star Mountains.

Figures

Figure 1. Dryophthoroides spp., holotypes: A – D. telnovi sp. nov., habitus, dorsal view; B – D. insularis sp. nov., habitus, dorsal view; C – D. insularis sp. nov., aedeagus, dorsal view; D – D. telnovi sp. nov., habitus, lateral view; E – D. insularis sp. nov., habitus, lateral view; F – D. insularis sp. nov., aedeagus, lateral view. Scale bar = 1.0 mm for A, B, D, El 0.5 mm for C, F.