One of the very common Geometrid moths of southern California is Anacamptodes fragilaria Grossb. It occurs at all altitudes and is on the wing in practically every month of the year. Apparently there is a succession of broods building up the scant population of the earlier months to a period of greatest abundance in the late fall and early winter. It is frequently taken at light. In view of its relative abundance in urban areas it probably feeds on a great variety of introduced trees and bushes. The list of these at present recorded includes only Eriogonum, Salix, Ceano- thus, Prosopis, Cercocarpiis, Albizsia, Thuya orientalis, Jacaranda, Acacia (melanoxylon R. Br., pruinosa Cunn., neriifolia Cunn., etc.), Pelargonium domesticum. Lemon verbena, Satsuma plum, apricot, Foenicidum vidgare L. (flowers), and Ulmus parvifolia Jacq.