Aenictocleptis lambirensis Maruyama

Maruyama, Munetoshi, Matsumoto, Takashi & Itioka, Takao, 2011, Rove beetles (Coleoptera: Staphylinidae) associated with Aenictus laeviceps (Hymenoptera: Formicidae) in Sarawak, Malaysia: Strict host specificity, and first myrmecoid Aleocharini, Zootaxa 3102, pp. 1-26 : 11-14

Aenictocleptis lambirensis Maruyama , sp. nov.

( Figs. 35–37 , 43–47 )

Holotype, 3 “ MALAYSIA: Sarawak, Lambir Hills National Park, 16 V 2004 / ATTM 418 / HOLOTYPE Aenictocleptis lambirensis Maruyama ” (no. 418). Paratypes: 1 3, 1 Ƥ, 1 sex?, same data as holotype (no. 418). See, Table 1 for detailed collecting data.

Symbiotic host. Morphotype S of Aenictus laeviceps .

Distribution. Malaysia (Borneo).

Etymology. Named for the type locality.

Description. Body ( Fig. 35 ) rather robust. Reddish brown, except for mouth parts, legs, lateral margins of pronotum, abdominal segments III–VII other than medial area of tergites paler. Head ( Figs. 35, 36 ) with temple well developed to eye level. Mandibles rather asymmetric; right mandible gently narrowed and curved apically. Antennae ( Figs. 35, 37 ) somewhat thick, clavate, reaching around middle of elytra; segment XI longer than IX and X combined: relative lengths of segments IX–XI: 12, 15, 30. Pronotum ( Figs. 35, 36 ) much wider than long (width/ length=1.19–1.21), sparsely covered with long and stout setae. Elytra ( Figs. 35, 36 ) densely covered with long and stout setae. Abdominal segments VIII–IX moderately covered with long setae; macrosetae on tergite VIII ( Fig. 43 ) poorly distinguished from other setae.

Male: Median lobe of aedeagus ( Figs. 44, 45 ) with apical lobe rhomboidal, minutely bilobed at apex; apical lobe of paramere ( Fig. 46 ) subtriangular.

Female: Spermatheca ( Fig. 47 ) with basal part bulbous at base, without lateral projection.

Measurements. BL, ≈ 6.0–7.1; FBL, ≈ 2.6–2.9; HW, 1.09–1.15; EL, 0.53–0.58; AL, ≈ 2.4–2.5; PL, 0.89–0.96; PW, 1.13–1.21; ELW, ≈ 1.4–1.5; HTL, 1.25–1.33. N=3.

Diagnosis. This species is easily distinguished from other Aenictocleptis species by the sparse setation on the pronotum and elytra, and the apical lobe of the aedeagal median lobe being rhomboidal.

Figures

FIGURES 32 – 37. Aenictocleptis spp. 32 – 34, A. hirsutoides sp. nov.; 35 – 37, A. lambirensis sp. nov. (33, 34, 36, 37, SEM photographs). 32, 35, habitus, dorsal view; 33, 36, head, pronotum and elytra, dorsal view; 34, 37, right antenna, dorsal view.

FIGURES 43 – 47. Aenictocleptis lambirensis sp. nov. 43, male tergite VIII, dorsal view (holotype); 44, median lobe of aedeagus, lateral view; 45, ditto, ventral view; 46, apical lobe of paramere; 47, spermatheca.