Witteia dentilabrum Maruyama & von Beeren

Maruyama, Munetoshi, von Beeren, Christoph & Hashim, Rosli, 2010, Aleocharine rove beetles (Coleoptera, Staphylinidae) associated with Leptogenys Roger, 1861 (Hymenoptera, Formicidae) I. Review of three genera associated with L. distinguenda (Emery, 1887) and L. mutabilis (Smith, 1861), ZooKeys 59, pp. 47-60 : 52

Witteia dentilabrum Maruyama & von Beeren sp. n. Figs 718

Etymology.

Referring to the lateral projections on the labrum which is a unique character state in Witteia .

Type series.

Holotype, male, Ulu Gombak (University Malaya Field Studies Centre, 03°19.479N; 101°45.170E, 220-250 m alt.), Selangor, Malaysia, III 2009, C. von Beeren and V. Witte, from a colony of Leptogenys distinguenda (KUM). Paratypes: same data as holotype (2 males, 1 female); same data, but VIII 2008, C. von Beeren (10); same data, but VIII 2008, C. von Beeren (8); same data, but IX 2009, Y. Nakase (2).

Type locality.

Ulu Gombak, Selangor, Malaysia.

Distribution.

Peninsular Malaysia.

Symbiotic host.

Leptogenys distinguenda .

Diagnosis.

This species is closely similar in general appearance to Witteia borneensis (Pace, 1986), comb. n., from Sabah, Borneo, but is distinguished from it by the larger body and the smaller apical part of the spermatheca.

Description.

Body (Fig. 7) color reddish brown, but head completely black, mouthparts, legs, apex of abdomen lighter, medial areas of abdominal segments V and VI infuscate. Head (Figs 7-8) sparsely covered with setae; surface finely reticulated. Antennae (Figs 7-8) long, filiform; all segments longer than wide; segments III-X almost twice as long as wide; segment XI elongate. Pronotum (Figs 7-8) subquadrate, subparallel-sided, slightly wider than long (width/length = 1.11-1.18); surface moderately covered with minute setae, with some minute macrosetae laterally. Abdomen with anterior margins of sternites IV-VI produced medially; tergite VIII (Fig. 14) crenulate apically, with 8 macrosetae; sternite VIII (Fig. 15) rounded apically.

Male: sternite VIII with 11-12 macrosetae. Median lobe of aedeagus (Figs 16-17) with large parameral crest; apical part roundly convex paramerally; apical lobe slightly trilobed; copulatory piece with a short flagellum.

Female: sternite VIII with 8-9 macrosetae. Spermatheca (Fig. 18) with basal part dilated apically, coiled near base, curved near apex; apical part short.

Measurements: BL, ≈ 4.2-5.1; FBL, ≈ 1.8-2.0; HL, 0.660-0.738; HW, 0.887-0.988; AL, ≈ 2.8-3.1; PL, 0.806-0.950; PW, 0.725-0.800; HTL, 1.238-1.438.

Comments.

Commonly found in Leptogenys distinguenda colonies together with Maschwitzia ulrichi , but less frequent than the latter species.