Dicronychus talhouki Platia and Schimmel, 1997

Al Dhafer, Hathal M. & Platia, Giuseppe, 2013, Contribution to the knowledge of the genus Dicronychus (Coleoptera: Elateridae) from the Kingdom of Saudi Arabia, Zootaxa 3734 (1), pp. 15-22 : 20-21

Dicronychus talhouki Platia and Schimmel, 1997

Figs. 12–15 .

Material examined. Saudi Arabia, Wadi Dhiyan, 19° 48’ N, 41° 36’E, 830m, 7-III-1984, W. Buttiker, Holotype ♀ (NHMB); Riyadh Province, Rawdhat Khorim, 100 km. E. Riyadh, 25° 25’ 943”N, 47° 13’ 863”E, 572m, 29-IV- 2011, light trap, 18-II-2012; same locality, pit fall trap below Acacia gerrardii , 6-III-2012, 5♂, 6♀, Al Dhafer (KSMA); Jizan, Aiban, Sabia Road, Wadi Shahdan, 17° 28’ 266”N, 42° 51’ 191”E, 433m, 13-XI-2012, 1♂, light trap, H. Al Dhafer (KSMA); Jizan, Aiban, Wadi Gowra, 17° 17’ 569”N, 43° 04’ 211”E, 451m, 11-XI-2012, 1♀, beating sheet, H. Fadl (KSMA); Jizan, Abu Arish, Al Redhah road, Wadi Dhamad, 17° 12’ 324”N, 43° 01’ 580”E, 258m, 11-XI-2012, 1♀, light trap, H. Al Dhafer (KSMA); Al Oiynah Thonayan farm, 3-V-2008, 1♂, light trap, M. Otybi (KSMA); Al Oiynah, 50 km W. Riyadh, Obikan farm, 2-VII-2007, 1♂, light trap, H. Al Ayedh and H. Al Dhafer (KSMA).

Description. Head: Arcuate, black, dense rugosely punctured, covered with decumbent pale hair; frons convex with well-developed apical carina interrupted medially; antennae not reaching the hind angles by about one antennomere, antennomere 2 subconical, slightly shorter than antennomere 3, antennomeres 3–10 feebly dilated at apex, longer than wide, antennomere 11 subellipsoidal, narrowed at apex.

Pronotum: As long as wide or slightly longer, convex, widest at middle, brown, with dense and fine round punctures with scattered larger round punctures, lateral margins arcuate; hind angles sharply truncate, carinate dorsally. Prosternum without V-shaped lines ( Fig.13 ).

Scutellum: Brown to dark-brown, as long as wide, heart shaped, emarginate at base

Elytra: Bicolored, black anteriorly, posteriorly brown ( Fig. 14 ); striae finely punctuate, interstriae deeply punctuate.

Male genitalia: Parameres of aedeagus with a distinct expanded subapical rounded lobe, apicolateral expansion triangular, two setae below expansion, distal setae long; medial lobe simple, subparallel margins beyond middle, apically bulbous ( Fig. 15 ).

Female genitalia: Proximal sclerite of bursa copulatrix with 21–27 large marginal sclerotized teeth, apical tooth bifid or trifid (Fig. 16).

Figures

FIGURES 12 – 15. Dicronychus talhouki. 12. Claw. 13. Prosternum without V-shaped suture. 14. Habitus, 15. Male genitalia, dorsal. 16. Bursa copulatrix sclerite.