Scopaeus bipenicillatus 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 bipenicillatus

description: Scopaeus bipenicillatus Frisch, spec. nov.
(Figs 20, 45, 107 –109, 138, 139, 173, 174)
Type specimens: Indonesia: Holotype ♂, Sulawesi Tengah, Sigi: Pagana (01°23’52’’S, 119°58’37’’E), 640 m, 5.5.2017, leg. Frisch (MZB). Paratypes (45 specimens): 14 ♂, 5 ♀, same data as holotype (MFNB, MZB). Sulawesi Tengah: 4 ♂, 4 ♀, Poso: Tentena – Taipa (Lake Poso), (01°47’58’’S, 120°31’48’’E), 530 m, 11.5.2017, leg. Frisch (MFNB); 1 ♂, 20 km SE Tambarana: Camp Mauro, 11.– 16.7.1999, leg. Bolm (SMNS). Sulawesi Utara: 1 ♂, Kotamobagu: Mt Ambang, 11.1.1985, leg. Project Wallace, Royal Entomological Society London (NHML); 5 ♂, 1 ♀, Dumoga-Bone NP (Tumpah River), 200– 300 m, 1. – 2.1985, leg. Project Wallace, Royal Entomological Society London (NHML). Maluku: 7 ♂, 3 ♀, Manusela (Ceram Island), 16.– 18.2.1989, leg. Schillhammer (MFNB, NHMW).
Description: Habitus and coloring as in Fig. 20. Head subquadrate. Penultimate antennal segment quadrate. Mesotibia moderately thickened. Body surface subnitid with fine, dense, setose punctation; pronotum not more finely punctate than head; microreticulation absent. Pubescence of body surface short, decumbent, without conspicuous macrosetae. Body color varying from medium brown to black; appendages yellow-brown; dark specimens with head usually slightly lighter than pronotum, elytra gradually reddish medium brown posteriad in variable extent, and tip of abdomen light brown. Total body length 4.0 – 4.1 mm; forebody length 2.1– 2.3 mm.
Male: Abdominal sternite VII with semicircular emargination in median third of posterior sixth at either side studded with posterior, dense cluster of long macrosetae (Fig. 138). Abdominal sternite VIII with triangular emargination in almost posterior fourth (Fig. 139). Aedeagus (Figs 45, 107 – 109) about 0.6 mm long, strongly sclerotized, thus dark reddish brown; phallobase small compared to distal lobes and with dorsodistal window (Figs 45, 107, 109); apical lobes in lateral view somewhat tapered distad with broad, convex apices and round, ventromedian enlargement followed proximally by moderately projecting, ventral enlargement with shallow, median emargination (Figs 45, 107); distal portion of apical lobes in ventral view with straight lateral margins convexly narrowed towards proximal portion, convex inner margins and acute apices (Figs 108, 109); in proximal portion, inner margins of apical lobes with distal teeth pointing towards each other in between bases of distal portion of apical lobes and with short lobes in middle of longitudinal length also pointing towards each other (Fig. 108); dorsal lobe in narrow curve bent ventroproximad (Figs 45, 107), with deep, round, mediodistal emargination dividing lobe in two narrow, parallel, medioapicad curved halves (Fig. 109) continued in long, thin, apicoventrad curved processes (Figs 45, 107) with tips curved to the right (Fig. 109); flagellum short, inconspicuous; lateral lobes absent (Figs 108, 109); median foramen elongate with curved, transverse ridge (Fig. 108) followed distally by subrectangular, ventral ‘window’ of phallobase (Fig. 108: arrow).
Female: Process of sperm pump long, slender, evenly curved; chamber segment stout, without process, strongly curved and continued in spiral bursal duct; bursa sclerotized, amber (Figs 173, 174).
Distribution: Scopaeus bipenicillatus is presently known from Sulawesi and the Moluccan island Ceram.
Etymology: The epithet bipenicillatus [adjective, Latin, composed of the numeral bi (two) and the adjective penicillatus (penicillate, brush-like)] refers to the two brushes of macrosetae delimiting the posterior emargination of abdominal sternite VII (Fig. 138) of the 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 54-56, DOI: 10.25674/so95iss1id311, http://zenodo.org/record/10724236