A remarkable new species of the genus Dichodontus Burmeister, 1847 (Coleoptera: Scarabaeidae: Dynastinae) from Thailand and Myanmar, with discussions on some Sundaic species

Abstract

Dichodontus fluctus Geshev, Pathomwattananurak & Jiaranaisakul, new species from Thailand and Myanmar is described and illustrated. Lectotypes and newly identified paralectotypes of Dichodontus punctipennis Arrow, 1937 and Dichodontus grandis Ritsema, 1882, as well as the holotype and a female paratype of Dichodontus crassus Silvestre, 2001 are illustrated. D. punctipennis is newly recorded from Thailand, and D. grandis is recorded from Thailand and Myanmar for the first time. Additionally, previous record of D. crassus from Thailand is discussed and omitted from the distribution.