The genus Melanopopillia Lin, 1980 in Indochina (Coleoptera: Scarabaeidae: Rutelinae: Anomalini)

Abstract. The genus Melanopopillia Lin, 1980 is recorded for Indochina and the adjacent area of Myanmar for the first time. The subgenus Stagonopertha subgen. n. is described for M. (S.) arlekino sp. n. (type species) and M. (S.) carinicollis (Ohaus, 1905), comb. n. from the Northern Vietnam, Laos and north-eastern Myanmar (Kachin State). The new synonymy is established: Melanopopillia (s. str.) dinghuensis Lin, 1980 = Callistethus buddahnus Miyake, 1989, syn. n. New records of M. dinghuensis from Laos (Khammouane) and southern part of Vietnam (Dalat) are reported. Diagnoses of new taxa. Stagonopertha subgen. n. differs from the nominotypical subgenus Melanopopillia by the absence of an impression at the base of the elytra, by the shape of the 7th punctate row on the elytra, by the presence of the thick dense pilosity on the pronotum, the propygidium, the pygidum and abdominal ventrites, and by the maculated pattern on the elytra. Melanopopillia (Stagonopertha) arlekino sp. n. differs from M. (S.) carinicollis by the absence of the callose areas along the male pronotal base, by the non-shortened 2nd punctate row on the elytra and by the shape of the aedeagus.