Abstract

A new gall midge inhabiting resin of the Japanese cedar, Cryptomeria japonica D. DON is described under the name, Resseliella resinicola, and brief notes are given on its bionomics. This species is distinguishable from its relatives by characteristics of the male genitalia, stigmata of the eighth abdominal segment of the larva, spines on the antennal horns, and spinules on the cercal lobes of the pupa. The resin midge is multivoltine. Larvae develop in resin and crawl away from the resin to pupate. Pupation takes place between the bark layers. At least one hymenopterous endoparasitoid is associated with the resin midge, but it has not yet been identified.

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