Document Type

Article

Journal/Book Title/Conference

Pan-Pacific Entomologist

Volume

71

Issue

3

Publication Date

1-1-1995

First Page

137

Last Page

141

Abstract

A tachinid parasite, Triarthria spinipennis (Meigen), introduced over 50 years ago to control populations of the introduced European earwig in coastal California, is reported for the first time in California's Central Valley. Both the parasite and its host prefer cooler, more humid environments near water. Parasites were found during two consecutive years and abundance patterns within each year indicate they are multivoltine. The parasite has successfully accompanied its host's inland invasion from the coastal region of California.

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