Astenus (Eurysunius) veyseli Anlaş, 2021

Anlaş, Sinan, 2021, On the subgenus Eurysunius Reitter of Turkey VII. Four new species from central Anatolia, and additional records (Coleoptera: Staphylinidae: Paederinae Astenus), Zootaxa 4991 (2), pp. 343-352 : 344-345

Astenus (Eurysunius) veyseli Anlaş , sp. n. ( Figs. 1-8 ; Map 1 )

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Type material. Holotype: TURKEY: ♂, ‘‘TR. Sivas, Hafik, Yakaboyu 4 km NW, 40°08’08”N, 37°24’39”E, 1380 m 18.IV.2018, leg. Anlaş, Örgel & Köksal / Holotypus ♂, Astenus (Eurysunius) veyseli sp. n. det. S. Anlaş 2021” ( AZMM) . Paratypes: 3♂♂, 1♀, same data as holotype ( AZMM) ; 4♂♂, 4♀♀, Sivas, Doğanşar, Kıpçak 3 km S, 40°22’54”N, 37°54’20”E, 2030 m, 14.IV.2019, leg. Anlaş, Örgel & Köksal ( AZMM) ; 4♂♂, 10♀♀, Sivas, Yıldızeli, Yukarıçakmak 2 km W, 39°57’02”N, 36°41’43”E, 1560 m, 12.IV.2019, leg. Yağmur, Örgel & Köksal ( AZMM) ; 3♂♂, 3♀♀, Sivas, Yakupoğlan 5 km NE, 40°08’16”N, 36°59’09”E, 1675 m, 13.IV.2019, leg. Anlaş, Örgel & Kök- sal ( AZMM) ; 3♀♀, Sivas, Yıldız Dağı ski resort, 40°08’18”N, 36°56’18”E, 1730 m, 13.IV.2019, leg. Anlaş, Örgel & Köksal ( AZMM) ; 1♂, 11. VI.2020, Tokat, Almus, Babaköyü 8 km S, 40°14’10’’N, 36°59’02’’E, 1730 m, leg. Örgel & Kacar ( AZMM) .

Description. Habitus as in Fig. 1 . Body 4.2–4.6 mm long. Coloration: head and pronotum black or dark brown, more than anterior half of elytra black or dark brown, with posterior area yellowish brown, abdomen black or dark brown with the posterior margins of segments VI-VIII reddish brown, antennae reddish and legs reddish brown.

Head transverse, 1.16-1.22 times as wide as long ( Figs 1-2 ); dorsal surface convex, punctation umbilicate and very dense, pubescence short, decumbent and yellowish brown but not dense. Eyes relatively small in size with slightly protruding, shorter than postocular region in dorsal view. Antennae moderately slender, 1.08-1.12 mm long, all antennomeres oblong, antennomere III approximately 2.2 times as long as wide ( Fig. 1 ).

Pronotum transverse, approximately 1.10-1.15 times as wide as long ( Figs 1-2 ); approximately as broad as head or slightly narrower than head, slightly widest at anterior angles and narrowed posteriorly; dorsal surface with pronounced impressions; punctation somewhat coarser, non-umbilicate and sparser than that of head; pubescence short, decumbent and yellowish or yellowish brown, more distinct than than that of head; posterior margin of pronotum with 6-8 distinct setae; lateral margins each with three long black setae; one in anterior angle (on avarege 2.5 mm), one at anterior third (on avarege 2.3 mm), and one in posterior angle (on avarege 2.5 mm).

Elytra distinctly transverse, 1.70-1.80 times as long, 1.10-1.15 times as wide as pronotum ( Figs 1-2 ); approximately 0.70 times as long as pronotum; microsculpture absent, punctation dense and granulose; pubescence yellowish brown, posterior margin of each elytron with 5-6 long black setae. Hind wings completely reduced.

Abdomen narower than elytra (0.85-0.90 times); widest at segment V, segments III–VI distinctly transverse ( Fig. 1 ), punctation very dense and fine; interstices with microsculpture; pubescence yellowish brown; posterior margin of tergite VII with palisade fringe.

♂: sternite VII in posterior median area slightly depressed and with modified dark and short setae, posterior margin weakly concave ( Fig. 3 ); sternite VIII deeply and acutely incised posteriorly, pubescence unmodified ( Fig. 4 ); aedeagus 0.64-0.68 mm long and as in Figures 5-8 .

Comparative notes. The species is distinguished from all its consubgeners except A. sexsetosus Assing, 2002 (Kayseri) and A. kociani Assing, 2015 (Nevşehir) , by the presence of three (rather than two or one) long setae on either of the lateral margins of the pronotum. It differs from A. sexsetosus and A. kociani by the different morphology of the aedeagus, especially in lateral view, it is additionally separated as follows:

From A. sexsetosus by the different coloration of the forebody ( A. sexsetosus : Head, pronotum and abdomen blackish brown, elytra yellowish, sometimes with a more or less infuscate portion near the scutellum), by less transverse head ( A. sexsetosus : head 1.3 times as wide as long), by the much more transverse elytra and abdomen ( A. sexsetosus : elytra 1.5-1.6 times as wide as long and abdomen slightly narrower than elytra), and by the different shape of the aedeagus both ventral and lateral view, especially apically more stouter in lateral view.

From A. kociani by the different coloration of the forebody ( A. kociani : head and pronotum blackish; elytra dark yellowish-brown, with the region near the scutellum infuscate), by the much more transverse elytra ( A. kociani : elytra approximately 1.50 times as wide as long), by the broader posterior incision in sternite VIII, and by the different shape of the aedeagus both ventral and lateral view, especially apically more stouter in lateral view.

For descriptions and illustrations of these species see Assing (2002, 2015), and also see key to the Turkish Eu- rysunius species.

Etymology. The specific epithet is in honor of a famous Turkish minstrel, Veysel Şatıroğlu (1894-1973) of the 20th century, who was born in Sivas province, Turkey.

Distribution and bionomics. The species was collected five localities from Sivas province ( Map 1 ), in various grassland areas at altitudes of 1380-2030 m. The type specimens were collected in the nests of Tetramorium immigrans Santschi, 1927 and T. indocile Santschi, 1927 .

Figures

MAP 1. Distribution of Astenus (Eurysunius) species in Turkey: A. bicoloratus Assing, 2002 (large filled circle), A. brachati Assing, 2011 (large filled triangle), A. goeki Anlaş, 2017 (large open triangle), A. gultekini sp. n (large filled inverted triangle), A. gusarovi Anlaş, 2015 (large open square), A. honazicus Anlaş, 2015 (small filled triangles), A. ilgazi Anlaş, 2016 (small filled squares), A. kirani sp. n (open crosses), A. kociani Assing, 2015 (large filled square), A. kumlutasi Anlaş, 2015 (small open inverted triangles), A. melendizicus Anlaş, 2018 (large open circle), A. neseti sp. n (large open inverted triangle), A. occiduus Assing, 2007 (small hexagons), A. orgeli Anlaş, 2015 (small filled circles), A. paphlagonicus Assing, 2002 (small open squares), A. pelinae Anlaş, 2019 (open stars), A. rhodicus Assing, 2013 (filled cross), A. sandiklicus Anlaş, 2014 (small open triangles), A. sexsetosus Assing, 2002 (large filled hexagon), A. sivasicus Anlaş, 2019 (small filled inverted triangles), A. sultanicus Assing, 2010 (filled stars), A. veyseli sp. n (small open circles).

FIGURES 1–8. Astenus (Eurysunius) veyseli sp. n. 1—habitus; 2—forebody; 3—Male sternite VII; 4—Male sternite VIII; 5, 6—Aedeagus in lateral view; 7, 8— Aedeagus in ventral view. Scale bars: 0.5 mm (Figs. 1-2), 0.2 mm (Fig. 3-8).