Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Common Silverline, Spindasis vulcanus is a species of lycaenid or blue butterfly found in Asia. The wingspan is 26 34 mm. The larvae feed on Jujube, Zizyphus rugosa, Lxora longifolia, Clerodendrum siphomanthus, Allophylus cobbe en Canthium parviflorum. The Lycaenidae are the second-largest family of butterflies, with about 6000 species worldwide, whose members are also called gossamer-winged butterflies. They constitute about 40% of the known butterfly species.