Scopaeus cuspidatus 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 cuspidatus

description: Scopaeus cuspidatus Frisch, spec. nov.
(Figs 23, 47, 113 – 115, 142, 143, 176)
Type specimens: Indonesia: Holotype ♂, Bali, Jembrana: Cekik, 20.6. 1994, 300 m, leg. Wunderle (PWCM). Paratypes (2 specimens): 1 ♂, Central Sulawesi, Morowali: Beteleme – Tinompo (02°06’06’’S, 121°08’26’’E), 430 m, 12.5.2017, leg. Frisch (MFNB); 1 ♀, Jawa Barat, NO Bogor: NO-slope Mt Salak (06°39’55’’S, 106°45’36’’E), 640 m, 13.9.2016, leg. Frisch (MZB).
Description: Habitus and coloring as in Fig. 23. Head trapezoidal with concave posterior margin. Penultimate antennal segment transverse. Mesotibia moderately thickened. Forebody surface with relatively coarse, spacious, setose punctation; microreticulation absent; body surface shiny. Pubescence of body surface short, decumbent, without conspicuous macrosetae. Forebody unicolorous orange brown; abdomen light brown; appendages yellow-brown. Total body length 2.3 – 2.5 mm; forebody length 1.2 – 1.3 mm.
Male: Posterior margin of abdominal sternite VII extended in narrow, tapered, median lobe (Fig. 142). Abdominal sternite VIII with short, narrow, triangular emargination in posterior eighth and basal margin in median third notably concave, almost reaching subbasal ridge (Fig. 143). Aedeagus (Figs 47, 113 – 115) about 0.5 mm long, strongly sclerotized, thus dark reddish brown; phallobase compact, with large, distad projecting dorsodistal window (Fig. 47, 113), strongly narrowed towards long, slender, apicad tapered distal portion of aedeagus with narrow, short apical lobes each with ventroapical widening studded with longitudinal row of about six stout setae followed proximally by weakly sclerotized, broad, longitudinal enlargement with acute ventroproximal end (Figs 113, 114); dorsal lobe and flagellum inconspicuous; ventral lobe beginning with wide, triangular, proximal enlargement projecting from phallobase, then weakly sclerotized distad, very thin in ventral view (Fig. 114), in lateral view straight ventrally and evenly narrowed towards base of apical lobes (Figs 47, 113); median foramen small, limited distally by ventrally projecting, transverse ridge (Figs 113, 114).
Female: Sperm pump with short process segment and long, straight chamber without apophysis, narrowed towards thin, weakly sclerotized bursal duct (Fig. 176); bursa membranous.
Distribution: Scopaeus cuspidatus was found in Bali, Jawa and Sulawesi and seems to be widespread across Indonesia.
Etymology: For this new species the epithet cuspidatus (adjective, Latin: ‘tapered, pointed’) was chosen in reference of the distinct spine at the posterior margin of abdominal sternite VII (Fig. 142).
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 58-59, DOI: 10.25674/so95iss1id311, http://zenodo.org/record/10724236