Stilicoderus transversus, Assing, 2014

Assing, V., 2014, Seven new species and additional records of Stilicoderus and Stiliderus (Coleoptera: Staphylinidae: Paederinae), Linzer biologische Beiträge 46 (1), pp. 481-498 : 492

Stilicoderus transversus nov.sp. ( Figs 23-28 )

T y p e m a t e r i a l: Holotype: " MALUKU: Is. Halmahera, Sidangoli, Batu putih, 23.XI. 1999, 100 m, leg. A. Riedel / Holotypus Stilicoderus transversus sp. n. det. V. Assing 2013" ( SMNS).

E t y m o l o g y: The specific epithet (Latin, adjective) alludes to the extremely transverse male sternite VIII.

D e s c r i p t i o n: Body length 5.0 mm; length of forebody 3.0 mm. Length of antenna 1.6 mm. Habitus as in Fig. 23 . Lateral margins of pronotum with few (<5) setae. Legs uniformly reddish. Other external characters ( Fig. 24 ), except for the somewhat broader abdomen, as in S. seticollis .

: sternite VII ( Fig. 25 ) conspicuously transverse, posterior margin weakly concave laterally and weakly convex in the middle, laterally with dense pubescence; sternite VIII ( Fig. 26 ) extremely transverse, more than three times as broad as long, posterior margin broadly and weakly concave; aedeagus ( Figs 27-28 ) 0.86 mm long and of distinctive shape, characterized also by a distinctly projecting process (lateral view) at the base of the ventral process.

C o m p a r a t i v e n o t e s: This species differs from the other species described from Maluku particularly by the uniformly reddish legs, the conspicuously transverse male sternites VII and VIII, as well as by the distinctive morphology of the aedeagus.

D i s t r i b u t i o n a n d n a t u r a l h i s t o r y: The type locality is situated in Halmahera island ( Indonesia: Maluku) at an altitude of 100 m.

Figures

Figs 23-30: Stilicoderus transversus nov.sp. (23-28) and Stiliderus depressus ROUGEMONT (29- 30): (23) habitus; (24) forebody; (25, 29) male sternite VII; (26, 30) male sternite VIII; (27-28) aedeagus in lateral and in ventral view. Scale bars: 23-24: 1.0 mm; 25-30: 0.2 mm.