Clitobius grimmi sp. n. from Egypt with notes on C. oblongiusculus (Fairmaire, 1875) (Coleoptera: Tenebrionidae:...

Ten valid species of the genus Clitobius Mulsant Rey, 1859 have been published so far from the Palaearctic, Afrotropical and Oriental Regions. With C. grimmi sp. n. from Egypt an eleventh species is here described and illustrated. Specimens representing the newly proposed species were identified as C. oblongiusculus (Fairmaire, 1875) in many of the surveyed entomological collections. This could potentially be explained by the superficial convergence of C. grimmi sp. n. with the description of Halomenus lineicollis Fairmaire, 1879, which is now considered a junior synonym of C. oblongiusculus. Morphological distinctiveness of all of the above mentioned taxa is hereby discussed. The lectotype for Halonomus lineicollis Fairmaire, 1879 is designated in order to fix the nomenclatural status of that taxon. The determination key of Purchart Kamiski (2017) to the Clitobius species is updated with the following taxa: Clitobius subplumbeus (Fairmaire, 1892) and C. grimmi sp. n.