Anotylus brevisculptilis, Wang & Zhou & Lü, 2017

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 : 30-33

Anotylus brevisculptilis sp. nov.

(Figs. 8)

Type locality: CHINA, Sichuan, NW Chengdu, Qingcheng-Shan.

Type material examined. Holotype: male, CHINA, Sichuan (17), Qingcheng-Shan, NW Chengdu , 650–700 m, 30. 53.57N, 103. 32. 23E, 3. /4. 0 6. 1997, M. Schülke, Sammlung, M. Schülke, Berlin // Anotylus sp. n. P. M. Hammond det. 1977 ( MSPC) ; Paratypes: CHINA: Sichuan: 1 male, 2 females, Qingcheng-Shan, Rückseite, 650– 700 m, 30. 53. 56N, 103. 33. 01E, 18. 0 5. 1997, coll. M. Schülke // Sammlung, M. Schülke, Berlin ( MSPC) ; 2 males, Qingcheng-Shan, NW Chengdu, 650–700 m, 30. 54 N / 103. 33 E, 18. V. 1997, Wrase // Sammlung, M. Schülke, Berlin ( MSPC) ; 4 males, 2 females, Dujiangyan, Qingcheng-Shan, 4. VI. 1997, coll. Haisheng Zhou (IZ- CAS).

Description. Body yellow brown, head black, pronotum and antenna brown, legs yellow. Forebody slightly pubescent, punctate and less striate, coriaceous. Body length [average] male, 4.75 mm; female, 4.25 mm.

Male: Head (Fig. 8-1C, 8-2A) slightly broader than pronotum. Disc extremely convex, peared to be a few tubcles, with short and fine striae in lateral and basal parts; mid-longitudinal sulcus broad and deep, slightly fused with deep depression on each side before base. Supra-antennal ridge with margin slightly incrassate. Temples dilated, approximately two times as long as eyes. Clypeus nearly square, flat, coriaceous, about 1/3 of total head length, with anterior margin rounded and produced. Epistomal suture with lateral portions straight and parallel, running backward to level of anterior margin of eyes. Occipital suture slightly curved forward in middle. Antenna filiform, segment IV globular, V–X short and transverse, with ultimate one stilliform. Neck without smooth area.

Pronotum (Fig. 8-1D, 8-2A) transverse, less striate, broadest at near anterior 1/3; disc slightly convex, midlongitudinal sulcus broad and shallow, narrowing and deepening to base, with two shallower and narrower paramedial sulci, medial and paramedial sulci bounded by obtuse longitudinal carina; with two shallow depressions close to lateral margins. Anterior margin slightly emarginate in middle. Anterior angle produced and sharp, with slight emargination nearby. Lateral margin crenate with broad interval and not obvious, only seen in posterior half. Posterior angles much obtuse and rounded. Scutellum with crest-shaped impression, with median lobe sharply pointed. Elytra with fine and moderately dense punctures, but not pubescent; lateral margin curved and posterior margins truncate.

Abdomen coriaceous, covered with punctures and pubescence. Sternite VII (Fig. 8-1G, 8-2C) with posterior margin broadly emarginate and bearing some long setae laterally. Sternite VIII (Fig. 8-1H, 8-2D) with posterior margin broadly bi-emarginate and bearing long setae laterally, triangulate in middle and beyond lateral angles posteriorly.

Aedeagus (Fig. 8-1J–L, 8-3A–C) with median lobe elongate, 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. 8-1M, 8-3D) closely situated to each other and twining around median lobe, flat and broad at base and with a pinch of seta at apex; with thick short seta at middle of ventral edge of each paramere.

Female. Head (Fig. 8-1E, 8-2B) smaller than male, narrower than pronotum (Fig. 8-1F, 8-2B); disc extremely convex; mid-longitudinal sulcus deep. Temples shorter, nearly as long as eye-diameter. Sternite VII (Fig. 8-2E) with posterior margin nearly straight or weakly emarginate and bearing long setae laterally. Sternite VIII (Fig. 8- 1I, 8-2F) with posterior margin broadly rounded and protruded. Spermatheca (Fig. 8-1N, 8-3E) bulb-like at base and with apical part clavate and slightly curved.

Distribution. China (Sichuan).

Etymology. The species epithet is from the Latin terms " brevi- " (short, not extending) and "sculptilis " (sculptured), to indicate the relatively short striae on head.

Differential diagnosis. This new species is similar to A. opaciceps ( Bernhauer, 1938) in appearance. It can be distinguished from the latter by having head and pronotum with smaller punctures and the surface of bulges carrying wrinkles in female; the new species distributes in Sichuan; whereas A. opaciceps ( Bernhauer, 1938) has the surface of bulges on head and pronotum glabrous, covered with larger punctures, and is only founded in Jiangsu. The new species is also distinguished from other species of this group by the structure of aedeagus.