The early stages of the alticine Disonycha leptolineata Blatchley are discussed with the known biological history. A brief summary of the systematic placing of the species in relation to other Disonycha species is mentioned.
Aulacothoracicus coastaricensis Watts, new genus and new species of cryoptocephaline Chrysomelidae, is described from Costa Rica. Illustrations and an updated key to the genera of the subfamily in North and Central America are provided.