Studies of Aleochara tristis (Coleoptera: Staphylinidae), a Natural Enemy of the Face Fly

Author: DREA, JOHN J.

Source: Journal of Economic Entomology, Volume 59, Number 6, December 1966 , pp. 1368-1373(6)

Publisher: Entomological Society of America

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In 1961 the staphylinid Aleochara tristis? Gravenhorst was found for the first time parasitizing the face fly, Musca autumnalis De Geer, in France. Life-history studies were made of the beetle before its recent introduction into the United States. It is a multivoltine species and the adult may live 1 year or more. Under laboratory conditions (uncontrolled room temperature and humidity) , the egg stage lasts 5-6 days, the larval stage from 6 to 14 days and the pupal stage an average of 21 days. The newly hatched larva enters a face fly puparium, develops within as a parasite of the pupa, and emerges as an adult. Occasionally the fly is able to escape parasitism by closing off the larval entrance hole before the larva has penetrated. Multiple lanai attack overcomes this defense mechanism, and the fly succumbs. However, only one of the attacking beetle larvae completes its development. The adult beetle is predacious on larvae of several species of flies occurring in cow dung, but the larva appears to be more restricted in its host range. Initial tests also indicate that older puparia are more susceptible to larval attack than others. The adult beetle overwinters in the dung in the field. Since the farmers in France gather the dung for compost, the effectiveness of this beetle there may be greatly reduced by the annual depletion of the overwintering population.

Document Type: Research Article

Publication date: December 1, 1966

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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