Aenictocleptis hirsutoides 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

Aenictocleptis hirsutoides Maruyama , sp. nov.

( Figs. 32–34 , 38–42 )

Holotype, 3 “ MALAYSIA: Sarawak, Lambir Hills National Park, 25 IV 2005 / ATTM 711 / HOLOTYPE Aenictocleptis hirsutoides Maruyama ” (no. 711). Paratypes: 2, same data as holotype but 13 IV 2004 (no. 340); 1, ditto, 17 IV 2004 (no. 341); 3, ditto, 12 V 2004 (no. 368); 3, ditto, 19 V 2004 (no. 428); 1, ditto, 20 X 2004 (no. 555); 1, ditto, 25 X 2004 (no. 583); 2, ditto, 25 IV 2005 (no. 711). See, Table 1 for detailed collecting data.

Symbiotic host. Morphotypes L1 and L2 of Aenictus laeviceps .

Distribution. Malaysia (Borneo).

Etymology. In reference to the close resemblance to Aenictocleptis hirsutus .

Description. Body ( Fig. 32 ) slender. Brown, except for mouth parts, legs, abdominal segments III–V and basal half of abdominal segment VI reddish brown. Head ( Fig. 32, 33 ) with temple not developed. Mandibles strongly asymmetric; right mandible thick, outer margin around apical 1/4 convex. Antennae ( Figs. 32, 34 ) slender, long, reaching just before posterior margins of elytra; segment XI slightly longer than IX and X combined: relative lengths of segments IX–XI: 14, 19, 35. Pronotum ( Figs. 32, 34 ) as long as wide (width/length=1.01–1.03), densely covered with stout setae. Elytra ( Figs. 32, 33 ) densely covered with stout setae. Abdominal segments VIII–IX densely covered with short setae; macrosetae on tergite VIII ( Fig. 38 ) readily distinguished from other setae by thickness and color. Male: median lobe of aedeagus ( Figs. 39, 40 ) with apical lobe elongate, gently narrowed apically, acutely pointed at apex; apical lobe of paramere ( Fig. 41 ) parallel-sided, rounded at apex. Female: spermatheca ( Fig. 42 ) with basal part spherically bulbous at base, without lateral projection.

Measurements. BL, ≈ 5.0–6.1; FBL, ≈ 2.4–2.6; HW, 0.99–1.06; EL, 0.46–0.50; AL, ≈ 2.2–2.4; PL, 0.88–1.02; PW, 0.93–1.05; ELW, ≈ 1.3–1.4; HTL, 1.31–1.38. N=5.

Diagnosis. This species is most similar to Aenictocleptis hirsutus in color, shape of mandibles, pronotal proportions, and density of setae on pronotum and elytra, but may be easily distinguished by the shorter setae on the abdominal segments VIII–IX, the shorter apical lobe of the aedeagal median lobe, and the absence of lateral projection in the basal part of the spermatheca.

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 38 – 42. Aenictocleptis hirsutoides sp. nov. 38, male tergite VIII, dorsal view, holotype; 39, median lobe of aedeagus, lateral view; 40, ditto, ventral view; 41, apical lobe of paramere; 42, spermatheca.