Baeocera agostii, Löbl, 2014

Löbl, Ivan, 2014, On the Scaphidiinae (Coleoptera, Staphylinidae) of the Moluccas, Mitteilungen Der Schweizerischen Entomologischen Gesellschaft 87, pp. 49-60 : 50-51

Baeocera agostii sp. n.

( Figs 1-3 )

Holotype ♂ labelled: INDO: Maluc F911107 Tanimbar: Yamdena Isl. 22 km N Saumlaki . litter Agosti 11.9.91 (9) ( MHNG)

Paratypes: 1 ♂, with the same data as the holotype but « F911110 » and «(10)» ; 1 ♀ INDO : Maluc F 911146 Tanimbar Isl. Yamdena Bomaki, NW of Saumlaki leaflitt Agosti 10.9.91 ( MHNG) .

Description. Length 1.70 mm, width 1.10-1.12 mm. Head, body, femora and tibiae uniformly reddish-brown, antennae and tarsi lighter than body. Antennae comparatively long, length ratio of antennomeres as: III 32: IV 30: V 35: VI 32: VII 37: VIII 26: IX 37: X 33: XI 45; antennomeres III to VIII similar, narrow, IX to XI much wider, each about 3 times as long as wide. Lateral contours of pronotum and elytra almost continuously convex. Pronotum not microsculptured, with sparse and very fine punctation, setation hardly visible at 50x magnification. Lateral margins of pronotum convex, anterior margin wide, basal lobe well developed. Tip of scutellum exposed, well visible. Elytra not microsculptured, weakly narrowed apically, not covering apical tergites, lateral margins straight in middle, lateral mar- gin carinae concealed in dorsal view, suturai striae complete, curved along bases to form basal striae joined to lateral striae. Elytral punctation very fine and sparse along basal and lateral margins and on apical fourth to fifth, coarse and dense on prevailing surface, with punctures to part about as large as puncture intervals. Lateral striae coarsely punctate, epipleural striae impunctate. Metathoracic wings fully developed. Hypomera smooth. Mesepimera large, about 2.5 times as long as wide and about 3 times as long as intervals to mesocoxae. Metaventrite flat in middle, lacking impression, slon, very finely punctate except for apicomedian arcuate row of fairly distinct punctures hlrø-Q and coarse punctures margining submesocoxal lines. Submesocoxal areas Lunz.) 0.05-0.06 mm long, shortest interval to metacoxae about 0.13-0.16 mm. Metanepisternum parallel-sided, about 0.05 mm wide, almost flat, with deep, coarsely punctate suture. Abdomen very finely punctate, except for sternite 1 having coarse and dense basal punctures, not interrupted in middle, extended laterally by wrinkles becoming up to 0.10 mm long. Protibiae and metatibiae straight, mesotibiae hardly curved.

Male sexual characters. Protarsomeres 1 to 3 hardly widened. Aedeagus ( Figs 1, 2 ) 0.90 mm long, symmetrical. Apical process of median lobe moderately inclined, not bent at tip, much shorter than basal bulb. Paramères straight in lateral view, weakly arcuate in dorsal view, almost evenly wide except for their moderately widened base. Internal sac with narrow, arcuate and proximally bifurcate sclerite, basal striate structures, and membranes with fine denticulate structures, flagellum absent.

Female sexual characters. Protarsomeres 1 to 3 not widened. Ovipositor ( Fig. 3 ) with almost parallel-sided distal gonocoxite bearing long apical and subapical setae, and minute gonostyle.

Distribution. Moluccas, Tanimbar group. Yamdena Island.

Etymology. Named in honour of my friend Donat Agosti, Bern, who collected o-nlt the new species described in the wul. present paper.

Comments. This species is similar to B. alternans (Löbl, 1977) from Queensland. IfU-„J Its characters with the latter species, and with lCIIIU. aedeagal suggest relationship B. prospecta Lobi, 2002 and B. insperata (Löbl, 1975) from New Guinea. Baeocera C 6711 t agostii may be easily distinguished from these New Guinean congeners by the elytra with complete basal striae, while it differs from B. alternans by the lighter body colour and the structure of the internal sac, in particular the absence of narrow, bifurcate sclerite.

Figures

Figs 1-3. Baeocera agostii sp. n., aedeagus in dorsal view (1), same, in lateral view (2), ovipositor (3); scale bar 0.1 mm. Fig. 4. Baeocera yamdena sp. n., ovipositor. Scale bar 0.05 mm.