One new species, Lobesia (Lomaschiza) bisyringnata sp. nov., is described and three species, L. (Lom.) fetialis (Meyrick), L. (Lobesia) montana Diakonoff and L. (Lob.) transtrifera (Meyrick), are newly recorded from Borneo. The male of L. (Lob.) montana is described for the first time.
Dealt with are two subspecies of Colias described from China by Huang & Murayama (1992). A taxonomic change is proposed for Colias alpherakyi aljinshana.
Eulamprotes atrella ([Denis & Schiffermuller]) and Paltodora cytisella (Curtis) are recorded from Japan for the first time. External and genital features of the two species are illustrated.
The place of spinning a cocoon in soil by clearwing moth, Melittia nipponica Arita & Yata, was investigated in the field. Pupal movement to the surface of the earth at the time of adult eclosion was observed.
Neope watanabei Matsumura, 1909 (Satyridae) is recognized to be a seasonal form (spring or winter form) of Neope bremeri (C. Felder & R. Felder, 1862) in Taiwan through adult morphology and results of rearing. The subspecific name of Neope bremeri taiwana Matsumura, 1919 (summer form) is sunk as a junior synonym of watanabei.