Tetartopeus tezcani, Anlaş, Sinan, 2009

Anlaş, Sinan, 2009, On the genus Tetartopeus Czwalina, 1888 of Turkey. A new species and additional records (Coleoptera: Staphylinidae: Paederinae), Zootaxa 2031, pp. 63-67 : 65-67

Tetartopeus tezcani sp. n.

( Figs. 1–12 )

Type material. Holotype: TURKEY: 3, “ TR. Adıyaman, Gölbaşı, Karakuyu village, 1 km W, 1210 m, 37˚41’52”N, 37˚38’14”E, 5.IV.2008, leg. Yaġmur / Holotypus 3, Tetartopeus tezcani sp. n. det. S. Anlaş 2008” (cAnl). Paratypes: TURKEY: 833, 10ƤƤ, same data as holotype ( LEMT, cAnl, cAss, cYag).

Description. Measurements (in mm) and ratios (range, arithmetic mean; n=19): AL: 1.77–2.15, 1.91; HL: 0.72–0.85, 0.78; HW: 0.68–0.75, 0.71; PW: 0.74–0.84, 0.78; PL: 0.86–1.00, 0.92; EL: 0.79–0.95, 0.87; EW: 0.84–1.00, 0.92; AW: 0.82–0.91, 0.86; TiL: 0.81–0.91, 0.87; TaL: 0.52–0.66, 0.60; ML: 0.91–1.02, 0.95 (n=9); TL: 6.3–7.4, 6.8; HL/HW: 1.06–1.13, 1.10; PW/HW: 1.09–1.12, 1.10; PW/PL: 0.84–0.86, 0.85; EL/ PL: 0.92–0.95, 0.94; EW/PW: 1.14–1.19, 1.17; AW/EW: 0.91–0.98, 0.94; TiL/TaL: 1.38–1.55, 1.45.

Habitus as in Fig. 1 . Coloration: head and pronotum black; elytra red, with scutellar region infuscate; abdomen black, with posterior margin of segment VII and apical segments (VIII–X) reddish; legs yellowish brown; antennae reddish brown, partly slightly infuscate.

Head oblong (see measurements, ratio HL/HW and Figs. 1, 7 ); eyes moderately large ( Fig. 7 ), punctation moderately coarse and dense, interstices in lateral dorsal region on average approximately as wide as punctures; punctation in central dorsal region slightly sparser; microsculpture in central dorsal region absent, in posterior and lateral region very shallow. Antenna slender; antennomere III longer than II; antennomeres IV–XI slightly more than twice as long as wide, of subequal length, and about as long as II ( Fig. 1 ).

Pronotum slightly wider than head (see ratio PW/HW, Figs. 1, 7 ) and oblong (see ratio PW/PL and Figs. 1, 7 ); punctation similar to that of head but much denser and slightly more defined than that of head.

Elytra wider and at suture slightly shorter than pronotum; (see ratios EW/PW, EL/PL and Figs. 1, 7 ); punctation finer and shallower than that of head and pronotum. Hind wings present.

Abdomen narrower than elytra (see ratio AW/EW and Figs. 1, 7 ); punctation very dense and very fine, pubescense blackish. Posterior margin of tergite VII with palisade fringe.

3: sternite VII with clusters of dark modified setae, posterior margin weakly concave ( Fig. 5 ); sternite VIII with two extensive and oblong clusters of black modified setae ( Fig. 6 ); aedeagus with long ventral process of characteristic shape ( Figs. 8–10 ), particularly distinct of triangular shape, apically in lateral view ( Fig. 8 ). Internal sac structures as in Figs. 11–12 .

Ƥ: tergite and sternite VIII as in Figs. 2, 3 ; female terga IX and X as in Fig. 4 .

Comparative notes. The species is distinguished from all its congeners by the male primary and secondary sexual characters, especially by the distinctive shape of the apex of the ventral process of the aedeagus. From other species occurring in central-eastern and central-southeastern Turkey, it is additionally separated as follows: from T. adanensis and T. stylifer by distincly smaller size; from T. persicus by the shape of head. For illustrations of the habitus and genitalia of these species see Figs. 13, 14 and Assing (2004, 2008).

Etymology. The species is dedicated to Prof. Dr. Serdar Tezcan, Izmir, a specialist on Buprestidae , who has carried out important entomological research in Turkey.

Distribution and bionomics. The species was collected in only one locality in Adıyaman (Map 1), in moist grassland near edges of small standing water at an altitude of 1210 m.

Figures

FIGURES 1 – 14. Details of Tetartopeus tezcani sp. n. (1 – 12), T. adanensis Assing (13) and T. stylifer (Reitter) (14). 1 — habitus; 2 — female tergite VIII; 3 — female sternite VIII; 4 — female terga IX and X; 5 — male sternite VII; 6 — male sternite VIII; 7 — forebody; 8 — apex of aedeagus, lateral view; 9, 13, 14 — aedeagus, lateral view; 10 — aedeagus, ventral view; 11 — retracted internal sac with sclerites, lateral view; 12 — retracted internal sac with sclerites, dorso-lateral view. Scale bars: 1. 0 mm (1, 7); 0. 3 mm (2 – 6); 0,04 mm (8); 0. 5 mm (9 – 10); 0,1 mm (11 – 12); 0,2 mm (13 – 14).