Eleven species of parasitic insects were reared from Haematobia irritans (L.): Aphaereta pallipes (Say) , Pseudeucoila sp., Trichopria haematobiae ? (Ashmead), Figites sp., Neralsia hyalinipennis (Ashmead), Eupteromalus sp., Muscidifurax raptor Girault & Sanders,Spa- langia haematobiae Ashmead, S. nigra Latreille, S. nigroaena Curtis, and Aleochara bipustulata ? (L.). The most common was S. nigra; S. nigroaeneawas second, and S. haematobiae was third. These 3 species accounted for 61.2% of the observed parasitism. In the 3 years of the study, 56.7% of the samples from which pupae were collected showed no parasitism. Furthermore, parasitism higher than 10.0% occurred in only 11% of the samples, and more than 20.0% parasitism occurred in only 4%. Total seasonal parasitism during the 3 years averaged 3.71, 4.13, and 6.61 %, and of 30,634 pupae collected, only 4.55% were parasitized. It appears that the parasites are not very important as natural control agents of the horn fly in Missouri.
Document Type: Research Article
Publication date: February 1, 1972
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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.