Dima dusaneki Mertlik, Németh & Kundrata, 2017, sp. nov.
Creators: name: Mertlik, Josef
name: Németh, Tamás
name: Kundrata, Robin
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Elateridae
Dima
Dima dusaneki

description: Dima dusaneki sp. nov.
Figs 20–21, 123, 181, 224, 244.
Type material. Holotype: MACEDONIA: distr. Kruševo, Kruševo env., beechwood 1 km NW of city, 1340 m (41°22'36.94"N, 21°14'8.74"E), 25.V.2014, ♂, J. Mertlik leg. (PCJM). Paratypes: MACEDONIA: same data as for the holotype, 42 ♂♂, 10 ♀♀, J. Mertlik leg. (PCJM), dtto, 2 ♂♂, 1 ♀ (PCRK); 32 ♂♂, 9 ♀♀, B. Zbuzek leg. (PCBZ); dtto, 34 ♂♂, 12 ♀♀, P. Brůha leg. (PCPB); Pelagonia reg., Krusevo, Fagus forest, singled at night, 41°22'38.01"N, 21°14'0.25"E, 5.VI.2014, 8 ♂♂, 4 ♀♀, leg. V. Dušánek, R. Kundrata & T. Németh (HNHM); dtto, 39 ♂♂, 25 ♀♀ (PCRK); dtto, 17 ♂♂, 17 ♀♀, V. Dušánek leg. (PCVD); prov. Krusevo, Krusevo, Crn Viv, 1350 m, 1997. V.5.–6., 1 ♂, leg. A. Podlussány & I. Rozner (HNHM).
Other material examined. MACEDONIA: prov. Skopje, Skopska Crna Gora, 500–600 m, Mon. Sv. Jovan, 8.VI.1998, 2 ♀♀, leg. I. Rozner (HNHM). These specimens were probably mislabelled (I. Rozner, pers. comm.).
Diagnosis. Dima dusaneki sp. nov. is a medium-sized to large species with more convex, suboval body and shiny elytral intervals with very sparsely distributed thin setae (Figs 2 0–21). It shares the similar body coloration, pronotal punctation and the pubescence of the pronotal sides with D. raineri (shorter decumbent at anterior 1/2 or 2/3, longer semi-erect posteriorly; Figs 123, 154–155). However, D. dusaneki sp. nov. differs from D. raineri (and also other Dima species in the region) in having a robust body and wide, laterally evenly rounded pronotum, which is widest medially (Figs 20–21). Dima macedonica Schimmel, 1993 and D. florinensis differ from D. dusaneki sp. nov. in the more distinctly double-sized punctation of pronotum and the pubescence of the pronotal sides which is semi-erect along the whole margin length (shorter anteriorly in D. macedonica, long in D. florinensis; Figs. 129, 141–143). Dima fialai sp. nov. has the pronotum widest at posterior half, narrowed toward anterior margin, with sparser punctation (Figs 29–30), and the pubescence of the pronotal sides short and almost decumbent at anterior 3/ 4 of the margin length and long semi-erect setae only near hind angles (Fig. 128).
Description. Holotype, male. Body medium-sized, 12.5 mm long, 5.2 mm wide, shiny, covered with short dense pubescence. Body blackish-brown, with paler, reddish-brown legs, antennae, elytral sutura and margins; pubescence yellowish (Fig. 20).
Head including eyes 0.5 times as wide as pronotum, frons slightly depressed; punctation sparse and coarse, moderately deep, intervals between punctures shiny; pubescence on head semi-erect, more erect in anterior part of frons, directed forwards. Supraantennal carina short, indistinct. Antennae moderately long, surpassing the posterior angles of pronotum of about 3.5 segments; antennomeres II and III subtriangular, antennomere II longer than antennomere III, both less than 1.5 times longer than wide, together 1.3 times longer than antennomere IV, length ratio of antennomeres II–IV 1.2: 1.0: 1.7, antennomeres IV to X gradually widened apically, about 2 times longer than wide, apical antennomere longest, subacute apically; surface of antennomeres covered with moderately long, semi-erect setae.
Pronotum 1.4 times wider than long, widest just behind middle, convex dorsally; sides convex; gradually narrowed towards frontal margin; anterior angles obtuse; posterior angles prominent, sharp, slightly produced outward; punctation sparse, moderately fine, punctures on disc equally distributed, of double size; intervals shiny. Pubescence on pronotal disc short, decumbent; that on pronotal sides at anterior 1/2 or 3/5 short and decumbent, pubescence longer and semi-erect to erect posteriorly, long and erect at hind angles (Fig. 123). Prosternum finely, sparsely punctate, with short semi-erect setae, sparse medially, denser at margins; prosternal lobe moderately coarsely punctate, with longer semi-erect pubescence.
Scutellum sub-pentagonal, with sides rounded, with shallow median depression, in lateral view slightly raised above the plane of elytra, widest at middle; frontal margin rounded, gradually declined; apex widely rounded, punctation sparse, coarse; pubescence fine, moderately long, semi-erect. Elytra sub-parallel, 3.3 times longer than pronotum, convex, widest at posterior two thirds; striae well developed along the whole elytral length, irregularly interrupted by coarse sparse punctures; surface of interstices flattened, shiny, densely and finely punctate; punctures suboval, equally distributed, of the same size; pubescence short, sparse.
Aedeagus elongate; paramera long, narrow, its apical lobe moderately long, subapical tooth subacute (Fig. 181).
Female (Fig. 21). Like male, but more robust, with shorter antennae (surpassing the posterior angles of pronotum about one segment), pronotum distinctly wider than in male (1.6 times wider than long), scutellum distinctly wider. The sclerotized spines of bursa copulatrix as in Fig. 224.
Intraspecific variability. Body length: 10.6–15.2 mm.
Distribution. Macedonia (Kruševo; Fig. 244).
Etymology. The specific epithet is a patronym in honor of Mr. Václav Dušánek (Zábřeh, Czech Republic), who collected a part of the type series.
description: Published as part of Mertlik, Josef, Németh, Tamás & Kundrata, Robin, 2017, Revision of the flightless click-beetle genus Dima Charpentier, 1825 (Coleoptera: Elateridae: Dimini) in the Balkan Peninsula, pp. 1-63 in Zootaxa 4220 (1) on pages 10-11, DOI: 10.11646/zootaxa.4220.1.1, http://zenodo.org/record/4670787