ACROBASIS SASAKII YAMANAKA, 2003 – A NEW SPECIES OF PHYCITID MOTHS (LEPIDOPTERA: PYRALOIDEA, PHYCITIDAE) FOR THE FAUNA OF RUSSIA

Abstract

The Pyralid moth Acrobasis sasaki Yamanaka, 2003 known earlier only from Japan (Honshu) is reported from Russia for the first time. In male genitalia Acrobasis sasaki stand in marked contrast to the most of other congeneric species by a good apomorphic character: the gnathos with three dents on the apex. Similar morphology of gnathos is present only in close species  Acrobasis canella Yamanaka, 2003 described also from Japan. All other species of the genus Acrobasis Zeller, 1839 have simple gnathos with pointed apex. By this character as well as by the presence of triangular harpa on the valve in male genitalia, the new subgenus Yamanakia Streltzov et Dubatolov, subgen. n. is established for Acrobasis sasaki Yamanaka, 2003. The new subgenus includes two species: Acrobasis (Yamanakia) sasaki Yamanaka, 2003 and Acrobasis (Yamanakia) canella Yamanaka, 2003.