Chan Tui

Periostracum Cicadae (Chantui) Cicada Slough Cicada Slough is the slough of Cryptotympana pustulata Fabricius (Fam. Cicadidae) dropped off the nymph during emergence. The drug is collected in summer and autumn, removed from mud and sand, dried in the sun. Description Slightly ellipsoidal and curved, about 3.5 cm long, 2 cm wide. The outer surface yellowish-brown, translucent, lustrous. The head with a pair of filiform antennae, usually dropped, compound eyes projected. The anterior end of the frons projected, mouth and snout developed, labrum short and wide, labium extended into a tube. The dorsal surface of the thorax with a cross split of inward curved margin. Each side of the dorsum bears two small wings. The ventral surface bears three pairs of legs, covered with yellowish-brown minute hairs. The abdomen obtuse rounded, 9 segments. Light, hollowed, fragile. Odourless; taste, slight. Processing Eliminate foreign matter, wash clean and dry in the sun. Action To dispel wind-heat, to s