Aleocharine rove beetles (Coleoptera, Staphylinidae) associated with Leptogenys Roger, 1861 (Hymenoptera, Formicidae) II. Two new genera and two new species associated with L. borneensis Wheeler, 1919 Author Maruyama, Munetoshi Author von Beeren, Christoph Author Witte, Volker text ZooKeys 2010 59 61 72 http://dx.doi.org/10.3897/zookeys.59.511 journal article http://dx.doi.org/10.3897/zookeys.59.511 1313-2970-59-61 Leptogenonia roslii Maruyama sp. n. Figs 4-51523 Etymology. Dedicated to Dr. Rosli Hashim for his great support to field researchers in the Peninsular Malaysia that has resulted in numerous contributions to the knowledge on tropical animals. 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 & V. Witte, from the colony of Leptogenys borneensis (KUM). Paratypes: same data as holotype but VIII 2008, C. von Beeren (1 female, 1 sex?: KUM). Type locality. Ulu Gombak, Selangor, Malaysia. Distribution. Peninsular Malaysia. Symbiotic host. Leptogenys borneensis . Diagnosis. This species is similar to the members of the genus Maschwitzia but is easily distinguished from them by the smaller body and the shorter legs. This species is found together with Parawroughtonilla hirsuta in the same host colony, but it can be easily distinguished by the smaller body and the shorter and sparser setation on the body surface, especially by elytra lacking any setae. Description. Body (Fig. 4) color pale reddish-brown, but head, pronotal lateral margins, elytra and abdominal segments V-VI darker. Head (Figs 4-5) moderately covered with short recumbent setae; surface somewhat rugose. Antennae (Fig. 3) long; all segments longer than wide; segments III-X almost 1.5 times as long as wide; segment XI conical. Pronotum (Fig. 4) longer than wide (width/length = 0.88-0.91), with anterior margin truncate, constricted around basal 1/3, with posterolateral corners rounded, produced laterally; surface without setae. Elytra (Fig. 4) with surface moderately covered with short recumbent setae. Abdomen (Fig. 4) with sternites moderately covered with long recumbent setae, with tergites moderately covered with very short recumbent setae; tergite VIII (Figs 19, 21) with 7 macrosetae; sternite VIII (Fig. 20) rounded apically, with 8 macrosetae; tergite IX with 4 macrosetae; tergite X with 4 macrosetae postero-laterally. Male: tergite VIII rounded apically. Median lobe of aedeagus (Fig. 22) with short parameral crest; apical lobe curved near apex. Female: tergite VIII slightly truncate apically. Spermatheca (Fig. 23) with basal part almost straight but slightly curved at apex; apical part large, 1/2 as long as basal part. BL, ≈ 3.4-4.3; FBL, ≈ 1.8-2.0; HL, 0.538-0.555; HW, 0.625-0.644; AL, ≈ 2.0-2.1; PL, 0.725-0.748; PW, 0.644-0.656; HTL, 0.913-0.925.