Four females from Gemur environs conditionally attributed to the subspecies are represented by two series: one female is in very bad condition with elytral pubescence lost; pronotum glabrous with small moderately dense regular punctation; three females with wide white elytral areas; body length: 13.4-15.0 mm, width: 5.5-6.1 mm.
Materials. Holotype, male with 2 labels: 1) “Nakhichevan 26.5.1982 / N Bichenek env. 1940 m / 39°30΄50΄΄N, 45°46΄28΄΄E / M.Danilevsky leg.”; 2) [red] “PARATYPUS / D. scabricolle / nakhiczevanum / ssp. n. / det. M.Danilevsky, 1997” – MD; 5 paratypes; 5 males with same labels (4.6.1982 – ML) – MD, ML. I conditionally join to the subspecies a population known from Gemur about 10 km southwards Bichenek, which is represented in available materials by 4 females: 1 female with 3 labels and golden ring: 1) “Erivansk. g. / сел. Гемур [Gemur, 39°27΄41΄΄N, 45°45΄6΄΄E] / Maljushenco”; 2) “Dorcadion ♀ / dobrovljanskii / Typ. m. / G. Suvorov det.”; 3) [red] Paralectotypus, Dorcadion dobrovljanskii Suvorov, 1915, Lazarev det. 2016 – ZMM [the specimen is not a type of Dorcadion dobrovljanskii Suvorov, as it was not published in the original description]; 2 females, Transcauc. Gemur Distr. Nachitch. coll. Maljush. – ZMM; 1 female, Erivansk, Gemur, Malyushenko – ZMM.
Distribution. Only one population is reliably known above Bichenek village [about 39°30΄50΄΄N, 45°46΄28΄΄E, 1940 m] just under the population of D. s. nakhiczevanum Danilevsky, 1999. The population bellow Bichenek from near Gemur [about 39°27΄41΄΄N, 45°45΄6΄΄E] needs further investigation.
Note. The original description of D. s. nakhiczevanum Danilevsky, 1999 contains the information on different morphology of the specimens from the lower part of typical population: “very rare white stripes are narrow (fig. 15), sometimes nearly as narrow as in D. s. scabricolle (fig. 16), but such specimens occur only in the lowest part of the population”. Now such specimens are separated in a new subspecies. D. s. shakhbuzum ssp. n. observed further down the slope of the range were more similar to D. s. scabricolle, but not available now.
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