Dicronychus quadrimaculatus, Németh, T. & Platia, G., 2014

Németh, T. & Platia, G., 2014, On some Palaearctic click beetles deposited in the Hungarian Natural History Museum, 2 (Coleoptera: Elateridae) *, Zootaxa 3841 (4), pp. 451-490 : 481

Dicronychus quadrimaculatus sp. n.

(Figs. 63–64, 128–129)

Material examined. Holotype, female: Afghanistan: “O. Afghanistan, Prov. Nengrahar D. Povolný et coll (79) 2 km sw. Jalalabad 21. 3. 1967 600 m ” ( HNHM). 2 paratypes, male and female: same data as holotype (1 male, HNHM) and “Laghman env., Kabul, 1500 m, 31.III.1953, J. Klapperich” (1 female, CPG).

Diagnosis. This species is very similar to D. quadrinaevus (Reitter, 1891) in having the same color pattern, it can be separated by the smooth surface of the pronotum with very fine punctures (not smooth in D. quadrinaevus ), and by the very different sclerites of the bursa copulatrix.

Description. Female (Fig. 63). Bicoloured;dark brown with four yellow subovate spots on elytra, two subhumeral and two subapical; antennae darkened, legs yellowish; covered with dense yellow-golden pubescence. Frons convex between eyes, moderately impressed before anterior margin, latter directed downwards, curved, shortly substraight at middle; punctures fine, deep, approximately of same size with very narrow shiny intervals.

Antennae not reaching posterior angles of pronotum, slightly serrated from third antennomere on; second subconical, 1.4× longer than wide; third to tenth subtriangular, on average 2.3× longer than wide.

Pronotum as long as wide, widest at middle, convex, with very shallow mid-longitudinal depression on basal slope; sides strongly arcuate, from middle regularly converging and slightly sinuate before posterior angles, these truncate, not divergent, shortly carinate; lateral margin moderately curved, fine and nearly reaching anterior margin; puncturation very fine, regularly distributed; punctures approximately of same size with intervals on average a little smaller than their own diameters.

Scutellum heart-shaped as long as wide, emarginate at middle of base, impressed and finely punctured.

Elytra 2.45× longer than and as wide as pronotum, convex, oval, widest at middle; striae distinctly and deeply punctured; interstriae subconvex and densely punctured.

Claws with a moderate expansion in first half.

Bursa copulatrix sclerified as in Fig. 128.

Male (Fig. 64). Similar to female in general colour with head and pronotum black, sides of pronotum are less arcuate.

Aedeagus as in Fig. 129 (length 0.87 mm).

Size. Length 5.8–7.3 mm; width 1.75–2.12 mm.

Etymology. This specific epithet refers to the four yellow spots on its elytra.