A review of the genus Nalassus Mulsant, 1854 (Coleoptera: Tenebrionidae: Helopini) of China with new concept of the distribution of the genus

Abstract

Two species of the genus Nalassus Mulsant, 1854: Nalassus (s. str.) pekinensis (Fairmaire, 1888), comb. n. (from Cylindrinotus) from Beijing and Nalassus (Helopocerodes) melchiades (Reitter, 1922) from Tarbagatai rige (Xinjiang) are recorded for China for the first time. Types of these species are studied; lectotype of Nalassus pekinensis is designated. Paleodistribution, assotiated with wide distribution of Turgayan flora in Middle–Late Oligocene is analized.

Keywords

• Coleoptera
• Tenebrionidae
• Helopini
• Nalassus
• China
• recent distribution
• paleodistribution