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MONCTON, westmorland County, New Brunswick, Canada
July 16, 2018
Size: 3-5 mm
small brightly coloured fly in numbers on common milkweed. Wondering if it will harm Monarch Butterfly eggs and larvae

Images of this individual: tag all

Moved from ID Request.

A female in the Condylostylus caudatus species group. I don't know if these eat caterpillars.

longlegged fly (Dolichopodidae)
These are very common, abundant flies, found on various types of vegetation.

Larvae eat either small insects or plant matter, but I would think they would not attack monarch eggs/larvae, especially with the toxins the monarch contains.

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