Laboratory Rearing and Field Observations on Carpophilus mutilatus1

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Abstract
A sap beetle, Carpophilus mutilatus Erichson, is a major pest of ripening and partially dried figs in the San Joaquin Valley of California. An artificial diet for adults and larvae plus rearing procedures are described. Under laboratory conditions, mean developmental times were: egg, 2.2 days; egg to wandering stage larva, 10.4 days; wandering stage to adult, 15.5 days; and preoviposition period, 3.0 days. Some hosts of C. mutilatus are given. Viable larvae and adults were collected through most of the year. Adults collected during the winter were reproductively active when held in the laboratory. Apparently, there is no diapause in this species San Joaquin Valley.

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