About Antigius attilia (Bremer, 1861)
Antigius attilia (Bremer, 1861) is a butterfly species that belongs to the family Lycaenidae. This species has a widespread distribution, ranging from Japan, the Korean Peninsula, and the Russian Far East, through northern, central, and western China, all the way to Taiwan. The wingspan of Antigius attilia measures 14–16 millimetres (0.55–0.63 in). For both sexes, the upper side of the wings shares the same color: black brown. Male Antigius attilia are uniformly colored all over. On the upper side of female hindwings, one or two chains of small, faintly visible whitish submarginal spots run along the outer edge. The underside of the wings is greyish-white, marked with black marginal spots and a brown transverse stripe. The spot located at the apex of the central cell on the forewing is rectangular with distinct edges. At the posterior corner of the hindwing, there are two pairs of small orange-black spots. The thin black tail on the hindwings is 3–4 mm long. The larvae of Antigius attilia feed on Quercus serrata, Quercus acutissima, Quercus variabilis, Quercus mongolica, Quercus dentate and Quercus aliena. The subspecies Antigius attilia yamanakashoji has been recorded feeding on Quercus acutissima.
