Anthobium cribrarium, Shavrin, 2025

Shavrin, Alexey V., 2025, A revision of eastern Palaearctic Anthobium Leach, 1819 (Coleoptera: Staphylinidae: Omaliinae: Anthophagini). IX. Thirteen new species and records from China and the Himalayan Region, Zootaxa 5728 (1), pp. 47-78 : 52-54

publication ID	https://doi.org/10.11646/zootaxa.5728.1.2
publication LSID	lsid:zoobank.org:pub:C986D1F2-ECC0-47C0-A2DA-E34D7AF77304
DOI	https://doi.org/10.5281/zenodo.17870079
persistent identifier	https://treatment.plazi.org/id/03F2AF1C-FF96-0F70-E880-FA1FC14CF967
treatment provided by	Plazi
scientific name	Anthobium cribrarium
status	sp. nov.

Treatment

Anthobium cribrarium sp. nov.

( Figs 2 View FIGURES 1–6 , 9, 10 View FIGURES 7–12 , 13 View FIGURE 13 )

Description. Measurements (n=3): HL: 0.38–0.41; HW: 0.61–0.62; AL: 1.15 ( holotype); OL: 0.17–0.19; LT: 0.05–0.06; PL: 0.50–0.52; PW: 0.87–0.96; ESL: 1.25–1.33; EW: 1.27–1.30; AW: 0.87–1.07; MTbL: 0.65 ( holotype); MTrL ( holotype): 0.26 (MTrL 1–4: 0.16; MTrL 5: 0.10); AedL: 0.80; BL: 3.10 ( holotype)–3.15.

Habitus as in Fig. 2 View FIGURES 1–6 . Body yellow-brown, with slightly darker head and middle of abdomen (lateral portions of pronotum and elytra slightly paler); antennomeres 4–11 yellow-brown; mouthparts, antennomeres 1–3 and legs yellow. Head with indistinct transverse microsculpture in frontal and middle portions ( one paratypes with meshes in middle); neck without or with fine transverse microreticulation; abdominal tergites with fine isodiametric microsculpture. Head with dense, large and deep punctation in middle and on infraorbital portions, slightly finer and sparser in middle ( holotype and one paratype); neck with sparse and fine punctation; punctation of pronotum dense, slightly larger and deeper than that in middle part of head, with interspaces between punctures in middle about as broad as nearest puncture, sparser in lateral parts, and sparser and finer in mediobasal third; scutellum with several fine pucntures; punctation of elytra about as that on pronotum, denser and deeper in basal portion, sparser and finer in middle; each elytron bearing five tangled and vague longitudinal rows of punctures; abdominal tergites with fine and sparse punctation.

Head with slightly elevated middle and infraorbital portions, 1.5–1.6 times as broad as long; mediobasal third with semicircularly elevated median portion, with narrow and fine (indistinct in one paratype) anteocellar foveae in front of mediobasal elevation, strongly convergent anteriad toward level of middle length of eyes; postocular ridges acute ot obtuse. Ocelli located at level of postocular ridges. Antennomeres 4–5 distinctly shorter than 3, 6–7 slightly shorter than 5, 8–9 distinctly shorter and slightly broader than 7, 10 slightly shorter than 9, apical antennomere 1.3–1.4 times as long as 10.

Pronotum 1.7–1.8 times as broad as long, from widest middle more narrowed posteriad than anteriad; posterior angles obtuse, without concave laterobasal margins; apical margin widely rounded, strongly protruded anteriad; mediobasal third with relatively deep semicircular depression; mediobasal part without or with ( holotype) indistinct oval impression; lateral portions widely impressed, explanate, each with deep oval pit slightly in front of middle; each lateral edge with distinct regular crenulation.

Elytra slightly broader than long, distinctly broadened posteriad, two and a half times longer than pronotum, reaching apical margin of abdominal tergite IV; median part of each elytron with two or three longitudinal elevations; mediobasal and medioapical parts with irregular transverse and longitudinal elevations between punctures; lateral margins with distinct acute crenulation, flattened in about middle and reduced after middle.

Abdomen with a pair of small oval tomentose spots in middle of tergite V.

Male. Posterior margins of abdominal tergite VIII and sternite VIII slightly sinuate. Aedeagus with broad basal part, gradually narrowed toward broadly rounded apex; parameres relatively narrow, distinctly exceeding apex of median lobe, each with two small apical and preapical setae; internal sac narrow and long ( Fig. 9 View FIGURES 7–12 ). Lateral aspect of the aedeagus as in Fig. 10 View FIGURES 7–12

Female. Posterior margins of abdominal tergite VIII and sternite VIII truncate.

Comparative notes. Based on the shape of anterior angles of the pronotum strongly protruded anteriad, with lateral portions more narrowed posteriad than anteriad, the shape of the elytra broader than long, the presence of elevations between punctures on the elytra, and the shape of elongate anteocellar foveae, A. cribrarium sp. nov. is similar to Chinese A. confucii , from which it can be distinguished by the paler coloration, narrower forebody, denser and larger punctation of the narrower pronotum, significantly broader aedeagus, and other details of the morphology of the aedeagus.

Distribution. Anthobium cribrarium sp. nov. is known from three localities close to each other in Khandbari District of Sankhuwasabha in western Nepal ( Fig. 13 View FIGURE 13 ).

Bionomics. Specimens were collected at elevations from 2100 to 2500 m a.s.l. The detailed bionomical data are unknown. It was collected together with A. ampliatum sp. nov.

Etymology. The specific epithet in the Latin adjective cribrarius, - a, - um (with dense punctation). It refers to the dense punctation of the forebody.