Scaphobaeocera larga, Löbl, 2023

Löbl, Ivan, 2023, On the Scaphidiinae (Coleoptera: Staphylinidae) of Java, Indonesia, Acta Musei Moraviae, Scientiae biologicae 108 (1 - 2), pp. 1-34 : 23-26

Scaphobaeocera larga sp. nov.

( Figs 23, 24 )

Type material. Holotype male, JAVA: W. Java Cibodas , 50 km E Bogor , 1400 m, 3 6.XI.1989, Agosti, Löbl, Burckhardt #2a ( MBBJ). Paratypes, 3 males, 3 females, with the same data as holotype ( MBBJ, MHNG).

Description. Length 1.02 1.05 mm, width 0.60 0.65 mm, dorsoventral diameter 0.65 070 mm. Head and most of body light brown, metaventrite usually somewhat darkened, apical abdominal segments yellowish, legs about as light as or slightly lighter than body, antennomeres yellowish. Length/width ratios of antennomeres: III 15 /6: IV 21 /6: V 23 /6: VI 20 /7: VII 30/10: VIII 20 /7: IX 33 /12: X 33 /12: XI 45 /14. Thorax, elytra and abdomen lacking microsculpture, not iridescent. Pronotal and elytral punctation similar, extremely fine. Scutellum completely concealed. Elytron with sutural stria shallow, starting at side of pronotal lobe; parasutural stria absent. Venter of thorax lacking microsculpture. Hypomeron lacking stria, appearing impunctate. Mesoventrite with short mesal ridge, not extending posterior mesoventral mid­length. Mesanepisternum as metaventral sides very finely and sparsely punctate. Metaventrite weakly convex in middle, flattened anterior of metaxocal process, lacking mesal stria, finely and densely punctate and with short pubescence on posterior two thirds; submesocoxal lines parallel, distinctly punctate, submesocoxal areas about 0.02 0.03 mm long. Metanepisternum flat, 0.05 0.06 mm wide, not narrowing anteriad, with deep, straight suture. Tibiae straight. Ventrite I with punctation similar to that on metaventral sides; basal puncture row distinct, outer punctures somewhat elongate.

Male. Protarsomeres I to III slightly widened, with indistinct tenent setae, protarsomere I narrower than apex of protibia. Aedeagus ( Figs 23, 24 ) 0.34 0.35 mm long.

Etymology. The species epithet is a Latin adjective meaning rich.

Differential diagnosis. The species shares most of its external diagnostic characters with S. kraepelini . However, it may be distinguished by the straight metanepisternal suture. The aedeagal characters of this new species differ notably from all congeners, especially by the shape of the looped flagellum and the broad median lobe.

Figures

Figs 21-27. Male genitalia and antenna. 21 – Scaphobaeocera basalis sp. nov., aedeagus in lateral view, scale = 0.1 mm. 22 – Ditto, internal sac, scale 0.1 mm. 23, 24 – Scaphobaeocera larga sp. nov., aedeagus in dorsal and lateral views, scale = 0.1 mm. 25 – Scaphobaeocera montisgedei sp. nov., antennomeres III to XI, scale = 0.1 mm. 26, 27 – Ditto, aedeagus in dorsal and lateral views, scale = 0.1 mm