Anotylus mutator ( Lohse, 1963 )

Wang, Lin-Fei, Zhou, Hong-Zhang & Lü, Liang, 2017, Revision of the Anotylus sculpturatus group (Coleoptera: Staphylinidae: Oxytelinae) with descriptions of seven new species from China, Zootaxa 4351 (1), pp. 1-79 : 67-70

Anotylus mutator ( Lohse, 1963)

(Figs. 19)

Lohse, 1963: 174 ( Oxytelus ; subgenus Anotylus ; Type locality: Garlstorfer Forst, Kreis Harburg, Niedersachsen); Tóth, 1974: 222, 223 ( Oxytelus ; characters; Hungary); Lohse, 1964: 85 ( Oxytelus ; subgenus Anotylus ; characters; central Europe); Hammond, 1976a: 159 ( Anotylus ); Lucht, 1987: 93 ( Oxytelus ; checklist; Germany; Poland; Austria; Denmark); Herman, 2001: 1372 ( Anotylus ; catalog); Smetana, 2004: 514 ( Anotylus ; Palaearctic catalog; distribution); Schülke & Smetana, 2015: 771 ( Anotylus ; Palaearctic catalog; distribution); Semionenkov et al., 2015: 33 ( Anotylus ; West of the European part of Russia).

Material examined. EUROPE: 1 male, Bruck N. Ö [Nieder-Österreich], Bernhauer// Chicago NHMus M. Bernhauer Collection// Anotylus mutotar (Lohse) P. M. Hammond det. 1977// FMNHINS 2821689 Field Museum ( FMNH); 1 female, Hung. Trencsén Nagy-Sziklás [leg.] Kocsi// CNHM 1955 Karl Brancsik Colln ex Eduard Knirsch// FMNHINS 2821690 Field Museum ( FMNH); Russia: 1 female, Transsilv. Kronstadt// Chicago NHMus M. Bernhauer Collection // FMNHINS 2821691 Field Museum ( FMNH).

Redescription. Body brownness, shiny; elytra yellow brown, with base slightly black; legs yellow. Forebody pubescent, moderately punctate and striate. Body length [average] male, 4.98 mm; female, 3.65 mm.

Male: Head (Fig. 19-1C, 19-2A) slightly broader, but narrower than pronotum. Disc extremely convex, with moderate-sized round punctures and longitudinal striae, denser at sides; mid-longitudinal sulcus short and shallow, with deeper impression on each side before base. Supra-antennal ridge with margin incrassate, and running backward to near base. Temples not dilated, approximately as long as eyes. Clypeus nearly square, about 1/3 of total head length, convex and coriaceous, with spare small punctures; anterior margin slightly straight and not produced. Epistomal suture with lateral portions straight and parallel, running backward to level of anterior margin of eyes; separated by coriaceous ground sculpture from the rest of the surface.

Occipital suture slightly curved forward in middle. Antenna filiform, article IV globular, V–X short and transverse, with ultimate article stilliform. Neck without smooth area.

Pronotum (Fig. 19-1D, 19-2A) transverse, broadest at near anterior 1/3, with moderate-sized round punctures and dense striae, denser at sides; disc slightly convex, median sulcus straight and deep, with two shallow and broad paramedial sulci, bounded by two obtuse longitudinal carina, with shallow depression close to lateral margins. Anterior margin slightly bi-emarginate. Anterior angles slightly produced. Posterior angles obvious; lateral margin slightly crenate on posterior 1/4. Scutellum with crest-shaped impression, with sharply pointed median lobe. Elytra densely striate and punctate, not pubescent; lateral margin curved and posterior margins truncate and slightly slant. Abdomen coriaceous, covered with punctures and pubescence. Sternite VII (Fig. 19-1F, 19-2C) with posterior margin broadly but slightly emarginate, bearing long setae laterally, in middle with two small flat tubercles, not beyond posterior margin; Sternite VIII (Fig. 19-1G, 19-2D) with posterior margin deeply emarginate and carrying long setae laterally.

Aedeagus (Fig. 19-1I –K, 19-3A–C) with median lobe oval, inflated at base and shortly narrowing to apex; apical orifice large and ventral orifice crescentic; internal sac of median lobe with complicated sclerites. Parameres (Fig. 19-1L, M, 19-3D, E) closely situated to each other; with basic part flattened and enlarged, apex part narrow and elongate; with rounded process at middle of ventral edge of each paramere, furnished with long seta.

Female. Head (Fig. 19-1E, 19-2B) smaller than male, narrower than pronotum (Fig. 19-1E, 19-2B). Temples shorter than eyes. Sternite VII (Fig. 19-2E) with posterior margin nearly straight. Sternite VIII (Fig. 19-1H, 19-2F) with posterior margin broadly shallowly bi-emarginate, obtusely angulate in middle and slightly beyond lateral angles posteriorly. Spermatheca (Fig. 19-1N, 19-3F) with base bulb-like, with apical part clavate and slightly curved.

Distribution. Russia, Turkey, Europe.

Remarks. Similar to A. sculpturatus , distinguished mainly by sternite VII, parameres and internal sac of aedeagus, so we redescribed and illustrated in this passage.