Aploderus capitulatus, Assing, Volker, 2007

Assing, Volker, 2007, On the Aploderus species of Turkey (Coleoptera: Staphylinidae, Oxytelinae), Zootaxa 1411, pp. 33-41 : 37-38

Aploderus capitulatus sp. n.

( Figs. 19–26 )

Type material. Holotype ɗ: " TR [9] - Trabzon, ca. 40 km S Trabzon, Altindere Milli Park, 1560 m, 40°39'46N, 39°40'08E, 26.VII.2006, V. Assing / Holotypus ɗ Aploderus capitulatus sp. n. det. V. Assing 2006" (cAss). Paratypes: 1Ψ: same data as holotype, but leg. Schülke (cSch); 1Ψ: " TR [36] - Trabzon, ca. 40 km S Of, S Uzungöl, 1870 m, spruce forest, 40°35'59N, 40°18'10E, 4.VIII.2006, M. Schülke" (cSch).

Diagnosis. 3.0– 3.9 mm. Habitus as in Fig. 20 . Of similar size and general appearance as A. schweigeri , but distinguished as follows:

Head without distinct sexual dimorphism, 1.27–1.35 times as wide as long, distinctly narrower than abdomen, 0.95–1.00 times as wide as pronotum; median area of dorsal surface in holotype with similar microsculpture as lateral areas, in paratypes with weaker microsculpture; female paratypes finely striate in the middle (but without distinct furrow), in holotype neither striate nor with furrow ( Fig. 21 ). Eyes composed of approximately 10 ommatidia ( Fig. 22 ). Antenna similar to that of A. schweigeri ( Fig. 23 ). Pronotum 1.21–1.26 times as wide as long; lateral dark setae somewhat shorter than in A. schweigeri ( Fig. 21 ). Elytra of similar shape as in A. schweigeri , but with shorter dark lateral setae. Abdomen as in A. schweigeri .

ɗ: sternite VII unmodified; tergite VIII distinctly transverse ( Fig. 24 ); sternite VIII strongly transverse, more than twice as wide as long, posteriorly moderately and broadly concave, with 2–3 submarginal setae on either side, and with moderately long dark setae in posterior angles ( Fig. 25 ); aedeagus slightly larger than in A. schweigeri , approximately 0.6 mm from base of median lobe to apex of paramere; apices of median lobe relatively short and distinctly bent; parameres apically obliquely truncate ( Fig. 26 ).

Etymology. The name (Lat., adj.) alludes to the small head of the male.

Distribution and bionomics. The three type specimens were collected in two localities in Trabzon province, northeastern Anatolia ( Fig. 19 ). They were sifted from leaf litter in spruce forests with Rhododendron at altitudes of 1560 and 1870 m.

Figures

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

FIGURES 20 – 26. Aploderus capitulatus sp. n. (holotype): 20 — male habitus; 21 — male forebody; 22 — head in lateral view; 23 — antenna; 24 — male tergite VIII; 25 — male sternite VIII; 26 — aedeagus in lateral view. Scale bars: 20: 1.0 mm; 21, 23: 0.5 mm; 22, 24 – 25: 0.2 mm; 26: 0.1 mm.