Lindbergius, Roudier, 1957

Hlaváč, Peter, Skuhrovec, Jiří & Pelikán, Jan, 2020, A new, peculiar genus of Cossoninae (Coleoptera, Curculionidae) from Oman with description of a new species, larva and notes on biology, Zootaxa 4768 (1), pp. 129-142 : 135

Synonymy of Lindbergius with Pentatemnus

Stüben (2014a) synonymized Lindbergius with Pentatemnus due to his synonymy of Lindbergius curtus Roudier, 1957 with the species Pentatemnus arenarius Wollaston, 1861 . This synonymy was based on the study of 42 specimens of Lindbergius curtus from the collection of Leiler and determined by Leiler himself (and which are deposited in the Swedish Museum of Natural History), but without seeing the holotype of Lindbergius curtus ( Stüben 2014a) , the only specimen the description of this species was based on. Perfect habitus photos, as well as of the aedeagus ( Stüben 2014b), exclude any doubt that this specimen is indeed Pentatemnus arenarius and it is very likely that all Leiler’s specimens belong to this species as well. The problem is that Lindbergius curtus has a funicle with 7 antennomeres ( Roudier 1957), while the funicle has only 5 antennomeres in Pentatemnus arenarius as well as in Pentatemnus affinis Wollaston, 1867 and Pentatemnus ochotorenai Alonso-Zarazaga, 1995 , the remaining two species of the genus. It is hardly possible to admit that Roudier mistook such a simple and easily observed character as the number of funicu- lar antennomeres. The same number of funicular antennomeres was mentioned by Folwaczny (1973), although it is not clear whether this author saw the holotype or whether he only simply translated the French original description into German. All in all, Lindbergius curtus is a different species from Pentatemnus arenarius and, consequently, the genus Lindbergius cannot be a synonym of the genus Pentatemnus . Until the holotype is found and studied, both generic taxa must be considered as valid, and thus the generic status of Lindbergius is resurrected here.