Study of types of the Arthrostenus Schoenherr in C. J. Schoenherr collection, with a new synonymy (Coleoptera: Curculionidae)

Abstract

Types of the three species of Arthrostenus Schoenherr, 1826 described by C. H. Boheman, housed at the C. J. Schoenherr collection in the Swedish Museum of Natural History, Stockholm are examined. The lectotype is designated for Arthrostenus fullo Boheman, 1836. The holotypes of Arthrostenus spadiceus Boheman, 1836 and Arthrostenus cinereus Boheman, 1836 are conspecific, which resulted in a new synonymy as follows: Arthrostenus spadiceus Boheman, 1836 = Arthrostenus cinereus Boheman, 1836; syn. nov. Digital photographs for the three types are presented.