Key to species of the genus Dendarus from Iran and Turkmenistan (on females = not widened protarsi) 1 Elytra with sparse (19–24 punctures in one row), strongly elongate (at least 1–3 striae), deeply impressed strial punctures (Figs 2F, 3F)............................................................................................. 2 - Elytra with denser (27–40 punctures in one row), round (only several punctures in 1–2 rows can be elongate), not impressed or slightly impressed strial punctures (Figs 2C, 4C, 6C, 8C, E)................................................... 3 2 Body completely shiny. Puncturation of pronotum dense and coarse. Puncturation of elytral interstriae dense (Fig. 2F)............................................................................................... D. crenulatus - Head and pronotum shiny, elytra dull. Puncturation of pronotum fine and sparse. Puncturation of elytral interstriae very fine and sparse, poorly visible (Fig. 3F)................................................................ D. leonhardi 3 Puncturation of pronotum uneven: very fine and sparse, with round punctures at middle and sharply coarse and dense, elongate, often merged punctures on lateral sides (Fig. 6C)................................................ D. transcaspicus - Pronotum uniformly punctured with moderately dense or sparse round punctures, sometimes punctures on sides slightly denser, but not sharply (Figs 2C, 4C, 8C, E)...................................................................... 4 4 Posterior angles of pronotum obtuse, not protruding (Fig. 2C)...................................... D. armeniacus - Posterior angles of pronotum right or acute, weakly protruding (Figs 4C, 8C, E)................................... 5 5 Elytral striae 1 and 2 close to each other, second interstria narrower than third one (Figs 8C, E)........... D. vagabundus - Elytral striae 1 and 2 not close to each other, second and third interstriae with the same width in middle (Fig 4C).............................................................................................. D. matthewsi sp. n.

Published as part of Nabozhenko, Maxim V. & Poggi, Roberto, 2022, Contribution to the knowledge of the genus Dendarus Dejean, 1821 (Coleoptera: Tenebrionidae: Blaptinae: Dendarini) from Iran, Turkmenistan and some adjacent territories, pp. 105-123 in Zootaxa 5155 (1) on pages 121-122, DOI: 10.11646/zootaxa.5155.1.5, http://zenodo.org/record/6669239