Dorcadion semibruneum subsp. vlasenkoi, 2020

Kasatkin, D. G., 2020, A new subspecies of the Dorcadion semibrunneum Pic, 1903 (Coleoptera: Cerambycidae) from Turkey, Russian Entomological Journal 29 (3), pp. 271-275 : 273-275

Dorcađion semibruneum vlasenkoi Kasatkin , ssp.n. Figs 1—2, 5 , 7 .

MATERIAL. Holotype (author̒s collection): ♂, Turkey, Isparta Prov., Davraz Daǧ , 37°46́59.66́́N 30°44́40.28́́E, 5—6 05 2019, leg. Kasatkin D .. Paratypes (all specimens in author̒s collection): 3♂ 8 ♀ with the same labels; 1♂, Turkey, Isparta Prov., W slope of Davraz Daǧ , h= 1600 m, 12 06 2014, mountain steppe, 37°46́42.2́́N 30°40́57.1́́E, leg. Saratovsky B. ; 1♂, Turkey, Antalya Prov., 35 km WSW Antalya, Saklıkent vill., 36°50́392́́N 30°19́655́́E, 3—6 05 2010, leg. Vlasenko A.

ADDITION EXAMINED COMPARATIVE MATERIALS. D. s. notatum: TR, umg. Barla (Ankara), 1200 m, 12 IV. 1990, Heinz leg. ( NMP) . D. s. međiocreimpressum: 2♂, 1♀, Turkey, Afyonkarahisar prov., Çakmaktepe geçidi, 08 05 2019, leg. Kasatkin D.; 2♂ the same place, 16 04 2015, Leg. M. & S. Nabozhenko; 3♂, 1♀ “ Afyon vill., Bas,ören, Çakmaktepe Geçidi, 1800 m, 04.06.2002, leg. Kostal et Vorisek ” ( NMP) . D. s. semibruneum : 1♂, Syntype, “ Asia minor, Bos-Dagh, v.Bodemeyer”, “ Asia minor, Eski-Chehir, v.Bodemeyer”, “Typus” (red label); 1♀, “ Asia minor, Bos-Dagh, v. Bodemeyer ” (coll. SDEIB) ; 1♂, Syntype, “ Asia minor, Bos-Dagh, v.Bodemeyer”, “ Asia minor, Eski-Chehir, v.Bodemeyer”, “Mniszechi semibruneum Pic Type” “Typus” (red label); 1♂ “ Asia minor, Bos-Dagh, v.Bodemeyer”, “collect. Hauser ” ( NMW) .

DESCRIPTION. Length of male: 19.5 mm (holotype); other male (paratypes) 16—20 mm, width 4.5—5.5 mm; length of female 17—21 mm, width 5.5—7.0 mm.

Body black, glossy shined; legs black or very dark brown; one specimen with lightened legs, antennae and ventral side of body (very dark brown); sutural stripe with whitish or yellowish hairs, elytral corner also with fine white hairs. Sutural pubescence easily erased or get dirty. Head coarsely and sparsely punctured. Antennae reached last third of elytra.

Pronotum transverse, with not large lateral tubercle, pronotal spines indistinct, obtuse. Pronotal punctures fine and sparse; punctures bearing with very thin and short white hairs; discal surface with fine microsculpture between punctures.

Elytra elongate, oval, humeral carina weakly expressed. Elytral sculpture coarse, vermiculate, finer to apex; surface with coarse microsculpture between punctures, very dense in sutural area.

Male genitalia. Endophallus is characterized by typical structure for the mniszechi - semibruneum species-group.

Female characterized by robuster body, more transverse pronotum; more distinct humeral carina and denser punctured head and pronotum.

DIFFERENTIAL DIAGNOSIS. A new subspecies similar to D. s. međiocreimpressum, but differs by black coloration and less expressed humeral carina. Also, the medioventral protuberance of the endophallus of the new subspecies has the shape of a parallelepiped smoothly rounded at apex, while a similar structure in D. s. međiocreimpressum has distinctly angulate ( Figs 12—15 ). In addition, the new subspecies is characterized by fine but distinct microsculpture of the pronotum ( Fig. 9 ). D. s. međiocreimpressum has very indistinct microsculpture, visible only with strong optical magnification and special light ( Figs 10—11 ). D. semibruneum s.str., has on the contrary coarse and very well visible microsculpture in one non-type specimen (with label “Bos-Dagh” only!) and almost invisible one in a syntype ( Figs 7—8 ).

VARIABILITY. A specimen collected by B.Saratovsky demonstrates lighter coloration of legs, ventral side of body and elytra. Such structures as pronotal and elytral microsculpture and elytral rugosity also variable.

DISTRIBUTION. Western and south-western Anatolia.

BIOLOGY. Subalpine landscape. Most of specimens from Davraz mountains were collected under stones ( Figs 16—17 ).

ETYMOLOGY. The new subspecies is named after Andrey Vlasenko, who collected the first specimen of this taxon.

Acknowledgments. The author is grateful to Mr A. Vlasenko and Mr B. Saratovsky ( Russia, Moscow) for provided materials, Dr M. Nabozhenko ( Russia, Rostov-on-Don) for help with text, Dr H. Schillhammer (Wien, Austria), Dr S. Blank ( Germany, Muncheberg) and Dr Jiří Hájek ( Czech Republic, Prague) for the providing access to the museum̒s collection.

Figures

Figs 1—6. Habitus, dorsal view: 1—2 — Dorcađion semibrunneum vlasenkoi ssp.n.; 3—4 — D. s. međiocreimpressum; 5 — D. s. semibrunneum; 6 — D. s. notatum Pesarini and Sabbadini, 2012; 1 — holotype; 2 — paratype; 5 — syntype (NMW); 1, 3, 5—6 — males; 2, 4 — females. ΡƲƇ. 1—6. BfleƜflƲŭ ssƲą, Ƈssepxy: 1—2 — Dorcađion semibrunneum vlasenkoi ssp.n.; 3—4 — D̹ s. međiocreimpressum; 5 — D̹ s̹ semibrunneum; 6 — D̹ s̹ notatum Pesarini and Sahhadini, 2012; 1 — FοƞοIƲIJ; 2 — IJapaIƲIJ; 5 — ƇƲflIƲIJ (NMW); 1, 3, 5—6 — ƇaMųffi; 2, 4 — ƇaMĸƲ.

Figs 7—11. Pronotal microsculpture:7—8 — Dorcađion s. semibrunneum; 9 — D. s. vlasenkoi ssp.n.; 10—11 — D. s. međiocreimpressum; 7 — syntype (MNW). ΡƲƇ. 7—11. ΜƲĸpοƇĸyƞbIJIypa IJepeąfleƇIJƲflĸƲ: 7—8 — Dorcađion s̹ semibrunneum; 9 — D. s. vlasenkoi ssp.n.; 10—11 — D̹ s. međiocreimpressum; 7 — ƇƲflIƲIJ (MNW)̹

12 13 14 15 Figs 12—15.Endophallus:12, 15 — Dorcađion semibrunneum međiocreimpressum; 13—14 — D. s. vlasenkoi ssp.n.; 12—13 — ventral view; 14—15 — lateral view; mvp — medioventral protuberance. ΡƲƇ.12—15.ƆfląοϕaƞƞyƇ: 12, 15 — Dorcađion semibrunneum međiocreimpressum; 13—14 — D. s. vlasenkoi ssp.n.; 12—13 — ƇflƲƷy; 14— 15 — ƇÕοĸy; mvp — MeąƲοsseflIpaƞbflffiŭ ssffiƇIyIJ.

Figs 16—19. Habitats: 16—17 — Dorcađion semibrunneum vlasenkoi ssp.n.; 18—19 — D. s. međiocreimpressum. ΡƲƇ. 16—19. ΜeƇIοοÕƲIaflƲq: 16—17 — Dorcađion semibrunneum vlasenkoi ssp.n.; 18—19 — D̹ s. međiocreimpressum.