Tag Archives: ptilinum

Balloon-faced Flies, Part 3

Twice before, I’ve posted photos of agromyzid flies freshly emerged from their puparia (hardened larval skins in which they pupate), with their faces grotesquely inflated. You may recall that since adult flies have no chewing mouthparts, they emerge from their … Continue reading

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Balloon-faced Flies, Part 2

A week ago, I wandered to the edge of my yard and noticed some agromyzid fly leaf mines in the bush honeysuckle (Diervilla lonicera) that I’m fairly sure are unknown to science.  So I stuffed a good number of leaves into … Continue reading

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Goldenrod Ball Galls

Some of the most familiar galls in eastern North America are the spherical ones on goldenrod, which are caused by a fruit fly, Eurosta solidaginis (Tephritidae).  (Tephritid fruit flies have nothing to do with the tiny “fruit flies” common in … Continue reading

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Balloon-faced Flies

On March 18 during my lunch break I collected an aspen twig with some distinctive swellings.  I knew they were caused by Hexomyza schineri, a fly in a family (Agromyzidae) that is mostly composed of leafminers, and was hoping to … Continue reading

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