Orphnebius (Deroleptus) globifer, Assing, 2019

Assing, Volker, 2019, On the Lomechusini fauna of the Palaearctic and Oriental regions. XXVI. New species, a new synonymy, and additional records (Coleoptera: Staphylinidae: Aleocharinae), Beiträge Zur Entomologie = Contributions to Entomology 69 (1), pp. 33-70 : 50-51

Orphnebius (Deroleptus) globifer spec. nov.

urn:lsid:zoobank.org:act:F2AB5418-A6A3-4125-AB1B-5B6C18EEF85E

( Figs 10–11 , 34,106–108)

Type material: Holotype: “ MALAYSIA 2011 PAHANG, Cameron Highlands, Tanah Rata vill. env., 1500–1600 m, FIT, R. Hergovits leg. 4.iv.2011 / Holotypus Orphnebius globifer sp. n., det. V. Assing 2017” ( MMB).

Etymology: The specific epithet (Latin, adjective) alludes to the globulous proximal portion of the spermatheca.

Description: Body length 5.7 mm; length of forebody 2.3 mm. Coloration ( Figs 10–11 , 34): head black; pronotum reddish-brown; scutellum dark-yellow; elytra dark-brown; abdomen reddish with segment VII extensively infuscate; legs reddish-brown; antennae reddish; maxillary palpi yellowish-red.

Head ( Fig. 10 ) nearly 1.5 times as broad as long, posterior angles convex, moderately marked; clypeus membranous, anterior margin of sclerotized portion (frons?) strongly concave; dorsal surface with sparse and very fine punctation, median dorsal portion extensively impunctate; interstices without microsculpture. Eyes large, occupying anterior four-fifths of lateral margins of head. Antenna (Fig. 34) not particularly slender, 1.75 mm long; antennomeres III rather stout, flattened, and not distinctly constricted basally, IV–X moderately transverse, only slightly increasing in width, X approximately 1.5 times as broad as long, and XI somewhat longer than the combined length of IX and X.

Pronotum ( Fig. 10 ) of transversely trapezoid shape, broadest anteriorly, approximately 1.4 times as broad as long and approximately 0.9 times as broad as head; disc rather strongly convex in cross-section; lateral margins straight in dorsal view, converging posteriad; punctation extremely fine and sparse, midline broadly impunctate.

Elytra ( Fig. 10 ) approximately 1.2 times as long as, and distinctly broader than pronotum; punctation fine and rather sparse, very sparse in postero-sutural portions; interstices without microsculpture and very glossy. Hind wings fully developed. Legs long and slender; metatibia 1.1 mm long; metatarsus nearly as long as metatibia; metatarsomere I slightly longer than the combined length of II and III.

Abdomen ( Fig. 11 ) gradually tapering from base to apex; anterior sternites without distinct postero-lateral extensions or processes; tergites III–VI with scattered micropunctation, otherwise impunctate; tergite VI with few fine setae at posterior margin; tergite VII extensively with dense non-setiferous punctures, except near anterior and posterior margins, near posterior margin with approximately 10–12 setae inserting in small tubercles, posterior margin with palisade fringe; tergite VIII (Fig. 106) anteriorly with two extensive clusters of dense gland openings, posterior margin nearly truncate and distinctly crenulate.

: unknown.

: sternite VIII (Fig. 107) transverse, postero-laterally with clusters of stout setae; posterior margin truncate; spermatheca (Fig. 108) of distinctive shape.

Comparative notes: Based on the external and sexual characters, O. globifer clearly belongs to the O. siwalikensis group, too. Among the species of this group, it is characterized by the coloration, the morphology of the antennae, the absence of processes on the anterior sternites, and particularly by the conspicuous shape of the spermatheca. For illustrations of numerous species of the O. siwalikensis group see ASSING (2016b, 2017a), for a catalogue of the species currently assigned to this group see ASSING (2017a).

Distribution and natural history: The type locality is situated in Cameron Highlands (Peninsular Malaysia: Pahang). The holotype was collected with a flight interception trap at an altitude of 1500–1600 m.

Figures

Figs 1–15:Myrmoecia urartu (1), Pella feldmanni (2), Orphnebius taurus (3–5), O. fortesetosus (6–7), O. morulus (8–9), O. globifer (10–11), andO. elevatus (12–15): habitus (1–3); head and pronotum (4–5); forebody (6, 8, 10, 12–13); abdomen (7, 9, 11); anterolateral portion of abdomen (14); tergites VII–VIII (15). Scale bars: 1–3: 1.0 mm; 4–15: 0.5 mm.