Aploderus magniceps, Assing, Volker, 2007

Assing, Volker, 2007, On the Aploderus species of Turkey (Coleoptera: Staphylinidae, Oxytelinae), Zootaxa 1411, pp. 33-41 : 35-37

Aploderus magniceps sp. n.

( Figs. 7–19 )

Bledioschema schweigeri: Löbl & Kodada (1996) , partim.

Type material. Holotype ɗ [teneral]: " Turquie Sinop, Lala près Sinop, 20.V.76, Besuchet Löbl / Holotypus ɗ Aploderus magniceps sp. n. det. V. Assing 2006" ( MHNG). Paratypes: 2ɗɗ, 1Ψ [ɗɗ teneral]: same data as holotype ( MHNG, cAss).

Diagnosis. 3.4–4.0 mm. Habitus of male as in Fig. 7 . Distinguished from the similar A. schweigeri as follows:

Of slightly greater average size. Head larger, especially in males, and with pronounced sexual dimorphism ( Figs. 8–10 ); 1.41–1.49 times as wide as long and approximately as wide as abdomen in male, almost 1.4 times as wide as long and distinctly narrower than abdomen in female; 1.10–1.15 times (male) and 0.95 times (female) as wide as pronotum; median area of dorsal surface less glossy, especially in males; shiny areas without or with very weak microsculpture reduced to the elevations on either side of the median furrow; median furrow distinct, clear-cut, and relatively long, as long as or longer than half the distance between fronto-clypeal suture and posterior margin of head ( Fig. 11 ). Eyes small, composed of approximately 10 ommatidia ( Fig. 12 ). Antennomere I longer and more slender, approximately 3.5 times as long as wide ( Fig. 13 ). Pronotum 1.30–1.35 times as wide as long in male and approximately 1.15 times as wide as long in female ( Fig. 8– 10 ).

ɗ: sternite VII in the middle with shallow, but rather extensive and posteriorly widened impression, this impression with dense and fine pubescence and with more pronounced microsculpture than lateral parts (see Fig. 14 in Löbl & Kodada (1996)); sternite VIII with deeply concave posterior margin, on either side of middle with 3 submarginal setae, and with conspicuously long black setae in posterior angles ( Fig. 15 ); aedeagus larger than in A. schweigeri , approximately 0.7 mm from base of median lobe to apex of paramere; apices of median lobe longer and more slender ( Figs. 16–18 ).

Comment. At least Fig. 14 in Löbl & Kodada (1996) refers to this species, not to A. schweigeri .

Etymology. The name alludes to the conspicuously large head of the males.

Distribution and bionomics. The type locality is situated near Sinop, Sinop province ( Fig. 19 ), almost at sea level. The partly teneral type specimens were collected by sifting leaf litter and old tree stumps in a mixed deciduous forest ( Löbl & Kodada 1996).

Figures

FIGURE 19. Distributions of Aploderus schweigeri (filled circles), A. capitulatus (open circles), and A. magniceps (square) in Turkey

FIGURES 7 – 15. Aploderus magniceps sp. n.: 7 — male habitus; 8 — male forebody; 9 — female forebody; 10 — male head and pronotum; 11 — male head in dorsal view; 12 — male head in lateral view; 13 — antenna; 14 — male tergite VIII; 15 — male sternite VIII. Scale bars: 7: 1.0 mm; 8 – 15: 0.5 mm.

FIGURES 16 – 18. Aploderus magniceps sp. n.: 16 – 17 — aedeagus in lateral view (16: paratype; 17: holotype); 18 — apical part of aedeagus in lateral view. Scale bars: 0.1 mm.