Anthobium flavofasciatum, 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 : 66-67

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.17870134
persistent identifier	https://treatment.plazi.org/id/03F2AF1C-FF80-0F63-E880-FEDBC1A3FA65
treatment provided by	Plazi
scientific name	Anthobium flavofasciatum
status	sp. nov.

Treatment

Anthobium flavofasciatum sp. nov.

( Figs 18 View FIGURES 15–20 , 26 View FIGURE 26 , 29, 30 View FIGURES 27–32 )

Description. Measurements (n=8): HL: 0.40–0.46; HW: 0.60–0.70; AL: 1.33 ( holotype); OL: 0.20–0.22; LT: 0.04–0.05; PL: 0.41–0.50; PW: 0.84–0.90; ESL: 1.26–1.28; EW: 1.03–1.36; AW: 0.91–1.15; MTbL ( holotype): 0.60; MTrL ( holotype): 0.29 (MTrL 1–4: 0.17; MTrL 5: 0.12); AedL: 0.32–0.36; BL: 2.30–3.04 ( holotype).

Habitus as in Fig. 18 View FIGURES 15–20 . Body brown to reddish-brown, with distinctly darker head and abdomen; lateral and basal portions of pronotum, and lateral and apical parts of elytra yellowish; antennomeres 4–11 brown; mouthparts, antennomeres 1–3 and legs yellow-brown. Forebody without microsculpture except of clypeus with indistinct transverse meshes, invisible in some paratypes, and basal part of neck with indistinct transverse microreticulation. Head with irregular and fine punctation, slightly larger in middle, somewhat denser and sometimes deeper on infraorbital portions; neck with sparse and fine punctation; punctation of pronotum irregular, about as that in middle part of head, denser in middle, finer and sparser in mediobasal and lateral portions; punctation of elytra larger and denser than that on pronotum, denser and coarser around scutellum, finer and sparser in middle, each elytron with indistinct five to six tangled longitudinal rows of punctures; abdominal tergites with fine and sparse punctation.

Head 1.5 times as broad as long; anteocellar foveae relatively deep, somewhat straight or slightly convergent anteriad toward level of middle length of eyes; postocular ridges small, subacute or obtuse, with interspace between posterior margin of eyes and ridge as long as diameter of one nearest ommatidia. Ocelli located at level of posterior margins of eyes. Apical maxillary palpomere about three times as long as preceding segment. Antennomere 3 slightly shorter and distinctly narrower than 2, 4 shorter and slightly broader than 3, 5–6 distinctly longer and slightly broader than 4, 7–8 slightly broader than 6, 9 slightly broader than 8, 10 slightly shorter than 9, apical antennomere about 1.3 times as long as 10.

Pronotum with slightly or strongly convex middle part, slightly less or about twice as broad as long, widest in or slightly above middle, gradually narrowed both anteriad and posteriad or slightly more narrowed posteriad; posterior angles rounded, not concaved in laterobasal margins; apical angles widely rounded, distinctly protruded anteriad; anterior margin widely rounded and sometimes slightly protruded anteriad; mediobasal part with shallow or strong and deep semicircular depression; middle surface without or with indistinct transverse elevations between punctures; lateral portions widely impressed, each with deep oval pit slighly above middle; each lateral edge with fine crenulation.

Elytra slightly broader or narrower than long, slightly broadened posteriad, reaching apical margin of abdominal tergite IV or V; mediobasal part with irregular transverse elevations between pucntures, middle part of each elytron without or with indistinct longitudinal elevations between punctures.

Metatarsi about twice as long as metatibia.

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

Male. Posterior margins of abdominal tergite VIII and sternite VIII slightly sinuate. Aedeagus with moderately wide basal part, strongly narrowed toward small rounded apex; parameres slightly asymmetric, narrow, distinctly exceeding apex of median lobe, each with two short apical setae; internal sac short and narrow ( Fig. 29 View FIGURES 27–32 ). Lateral aspect of the aedeagus as in Fig. 30 View FIGURES 27–32 .

Female. Posterior margin of abdominal tergite VIII truncate. Posterior margin of abdominal tergite VIII truncate or rounded.

Comparative notes. Based on the presence of fine smoothed crenulation on lateral edges of the pronotum, A. flavofasciatum sp. nov. is similar to A. ampliatum sp. nov. (see above) and A. flaveolum . It differs from A. flaveolum by the darker coloration, narrower apical part of the median lobe and slightly longer parameres. It differs from A. ampliatum sp. nov. by the paler lateral portions of the slightly broader pronotum, shorter elytra, narrower median lobe and longer parameres with narrower preapical parts. It also can be additionally distinguished from both species by the smaller body and details of the morphology of the aedeagus.

Distribution. Anthobium flavofasciatum sp. nov. is known from three localities in Koshi, eastern Nepal ( Fig. 26 View FIGURE 26 ).

Bionomics. Specimens were collected at elevations from 3200 to 3600 m a.s.l. The detailed bionomical data are unknown.

Etymology. The specific epithet is the Latin adjective flavofasciatus, - a, - um (yellow banded). It refers to the pale lateral portions of the pronotum and the elytra.