Scopaeus anuliflagellatus Frisch 2022, spec. nov.
Creators: name: Frisch, Johannes
name: Narakusumo, Raden Pramesa
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Scopaeus
Scopaeus anuliflagellatus

description: Scopaeus anuliflagellatus Frisch, spec. nov.
(Figs 11, 36, 77 – 79, 129, 159, 160)
Type specimens: Indonesia, Jawa Barat: Holotype ♂, Sukabumi, NNW Cidahu: Cirasamala River (S-slope Mt Salak), (06°44’18’’S, 106°42’52’’E), 1210 m, 29.9.2015, leg. Frisch (MZB). Paratype: 1 ♀, Sukabumi, Cikaniki: Cikaniki River (Mt Halimun, Halimun-Salak NP), (06°44’46’’S, 106°32’25’’E), 1020 m, 5.10.2015, leg. Frisch (MFNB).
Description: Habitus and coloring as in Fig. 11. Head subquadrate. Antennae with penultimate segment slightly elongate or quadrate. Mesotibia moderately thickened. Forebody surface with dense, rugulose, setose punctation, matt; abdomen somewhat shiny. Pubescence of body surface short, decumbent, without conspicuous macrosetae. Body black except for light tip of abdomen, medium brown maxillary palpi and yellow-brown legs with femora dark brown except for distal end; antennae with scapus medium brown, from blackish pedicellus evenly lighter towards terminal segments. Total body length 3.6 – 4.0 mm; forebody length 2.1 – 2.2 mm.
Male: Abdominal sternite VII with unmodified posterior margin. Abdominal sternite VIII widely emarginate in almost posterior sixth with median third of emargination somewhat convex (Fig. 129). Aedeagus (Figs 36, 77 – 79) about 1.2 mm long with distal lobes strongly asymmetrical; dextral apical lobe remarkably enlarged apically with broad, convex apex and acute, proximoventral end (Figs 36, 77), in ventral and dorsal view slender, parallel (Figs 78, 79); sinistral apical lobe, compared to dextral apical lobe, considerably narrower with convex, proximoventral end in lateral view, but much wider in ventral and dorsal view (Figs 78, 79); apex of dorsal lobe curved ventrad, extended in dextral, hooked end and sinistral, lobiform end (Fig. 77); flagellum comparatively short, not projecting ventrally from wide, distal portion of apical lobes, with annular winding to left of aedeagus (Figs 36, 77, 78); ventral lobe divided in scythe-shaped, distally curved, dextral lobe (Figs 36, 77) and short, sinistral tooth (Fig. 77, 78); lateral lobes reduced, marked by longer dextral and shorter sinistral group of setae (Figs 78, 79); median foramen small, subtriangular, with evenly, convexly distad curved, transversal ridge (Figs 36, 77, 78).
Female: Bursal duct membranous, about three times as long as sperm pump; bursa with specific sclerotization (Figs 159, 160).
Phylogeny: Scopaeus anuliflagellatus is a member of the S. gracilis species group (Frisch et al. 2002: 39).
Distribution: Scopaeus anuliflagellatus was found in two localities at Mount Salak and Mount Halimun, Jawa Barat.
Etymology: The epithet anuliflagellatus [adjective, Latin, composed of the noun anulus (ring) and the adjective flagellatus (indicating a characteristic/feature of the flagellum)] refers to the annular flagellum of the aedeagus (Figs 36, 77 – 79) of this new species.
description: Published as part of Frisch, Johannes & Narakusumo, Raden Pramesa, 2022, Revision of Scopaeus Erichson, 1839 (Coleoptera, Staphylinidae, Paederinae) of Indonesia, with description of 19 new species, pp. 23-73 in Soil Organisms 95 (1) on pages 36-37, DOI: 10.25674/so95iss1id311, http://zenodo.org/record/10724236