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March 13, 2014
Bug of the Day

Schizomyia impatientis - Jewelweed Gall Midge (Cecidiomyiidae):

Flies in the family Cecidiomyiidae cause plants to form conspicuous, tumour-like growths called galls. Inside each gall are one or more small maggots growing under the protection of the fleshy plant tissue. Gall midges are very small and often impossible to identify without a host plant. Schizomyia impatientis forms galls on jewelweed (in this case Pale Jewelweed - Impatiens pallida) and have bright orange maggots.

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Charley Eiseman, Vox Sciurorum. (September, 2008). Info. In Species Schizomyia impatientis. Retrieved March 13th, 2014, from

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Photographs ©2007-2019 Matthew Bergeron; last update March 2019