Oedostethus pektusanicus, 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 : 465

Oedostethus pektusanicus sp. n.

(Figs 32–34, 86)

Material examined. Holotype, male: North Korea: “ KOREA, Mt. Pektusan environs Mupo 20.VII.1977 No. 381—netted in grasses, DELY & DRASKOVITS”. 8 paratypes (6 males, 2 females): same data as holotype (5 males, 1 female, HNHM, 1 male, 1 female, CPG).

Diagnosis. This species is similar to O. quadripustulatus (Fabricius, 1792) in the colour pattern, but is easily separated by the more slender body, elongate antennae and male genitalia.

Description. Male (Fig. 32). Bicoloured: blackish with moderate bronze lustre except for yellowish apex of posterior angles of pronotum, humeral and subapical, subovate elytral spots; antennae blackish with first three antennomeres yellowish; legs yellowish, except for blackish femora; covered with dense, fine and short yellowgolden pubescence.

Frons flat, anterior margin finely ridged and subarcuate, puncturation dense with punctures deep, simple, with very short, shiny intervals.

Antennae exceeding posterior angles of pronotum by about one antennomere, very slightly serrated from fourth antennomere on, second and third, subcylindrical, subequal in length, taken together, 1.3× longer than fourth; fourth to tenth subtriangular, on average 2.5× longer than wide, last longer than penultimate, ellipsoidal.

Pronotum (Fig. 33) as long as wide, widest at middle and at posterior angles, convex; sides regularly arcuate, sinuate before posterior angles, latter rather acute, slightly divergent, shortly carinate, lateral margins complete and totally visible in dorsal view; puncturation uniformly distributed, punctures deep, simple with shiny intervals on average smaller than puncture diameters.

Scutellum shield-shaped, little longer than wide, flat, punctured.

Elytra 2.5× longer than and as wide as pronotum, convex, oval, widest at middle; striae marked and punctured; interstriae flat, densely punctured with wrinkled surface.

Claws moderately dilated in basal half.

Aedeagus as in Fig. 86 (length 0.575 mm).

Female (Fig. 34). On average a little larger than male, body more convex, antennae shorter, not reaching posterior angles of pronotum.

Size. Length 3–3.6 mm; width 1–1.12 mm.

Etymology. The specific epithet refers to “Pektusan”, the Paektu Mountain, the highest peak on the Korean Peninsula, where the type specimens were collected.

Figures

FIGURE 86. Oedostethus pektusanicus sp. n., aedeagus. 87 – 89. Cardiophorus anatolicus sp. n.: 87 = aedeagus, 88 = bursa, 89 = furca. 90. Cardiophorus aranyos sp. n., aedeagus. 91 – 92. Cardiophorus burkus sp. n.: 91 = bursa, 92 = symmetrical plate. 93. Cardiophorus dichronychoides sp. n., aedeagus. 94. Cardiophorus nipponicus Lewis, 1894, aedeagus. 95 – 97. Cardiophorus podlussanyi sp. n.: 95 = aedeagus, 96 = bursa copulatrix, 97 = furca. 98 – 100. Cardiophorus tenuis sp. n.: 98 = bursa copulatrix, 99 = furca, 100 = aedeagus. 101. Dicronychus berrai Platia et Gudenzi, 2003, aedeagus. 102. Dicronychus decoroides sp. n., aedeagus. 103. Dicronychus diluvii sp. n., aedeagus. Not to scale