Laboratory Culture and Biology of Orthellia caesarion1 with Notes on Determining Larval Instars2

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A culture of O. caesarion (Meigen) was maintained in the laboratory on a diet of distilled water, cattle manure, malt soup extract, non-fat dry milk, and an artificial preparation for adult house flies. Musca domestica L. The culture was reared at 90±2, 50-55% relative humidity, and under constant light. The puparia were held at 72± 2 in petri dishes containing a moist filter paper. The life cycle averaged 19.1 days--egg 12 hours, larva 4.3 days, pupa 7.3 days, and preoviposition 7 days. After eclosion, first-instar larvae were present in the rearing medium up to 8½ hours. 2nd instar from 2 to 33 and 3rd instar from 15 hours to pupation. The sex ratio was 3 females to 4 males. Each female produced an average of 46.9 puparia. Maximum fecundity, based on puparia recovery, occurred between an average of 8 and 28 days after adult emergence. Characteristics of the cephalopharyngeal skeleton and the posterior spiracles were used to determine the stage of larval development.

Document Type: Research Article

Publication date: October 1, 1967

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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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