Upper Midwest Stem Insect Survey

Local feeder (Diptera: Cecidomyiidae) in stems of Calystegia

Record Details

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Record no.:0113
Feeding guild:Local feeder in stem
Taxonomy:Diptera: Cecidomyiidae: Neolasioptera convolvuli
Stages observed:trace, larva
Hosts in Calystegia:C. sepium (hedge bindweed)

Larvae form conspicuous spindle-shaped stem galls, in which they overwinter, with adults emerging in spring (Gagné 1989). I noted several examples in different years throughout the course of this study. They were most easily located in winter, when formerly obscuring vegetation had died back. One old gall I dissected consisted of mostly solid pith interrupted by a narrow central chamber containing a spent cecidomyiid cocoon.

References

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  • Gagné, R.J. 1989. The plant-feeding gall midges of North America. Cornell University Press: Ithaca, New York.[return to in-text citation]

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