Subject: Bug ID
Location: Bois Blanc Island, MI
February 9, 2017 1:07 pm
Last July, on an inland hike on Bois Blanc Island, MI we discovered swamp milkweed covered in these insects. I have zero idea what they were and had never seen them before. But curiosity has the best of me and I would like to know what they were if possible.
Signature: B. Dunn
Dear B. Dunn,
At first we thought these might be March Flies, but they do not feed and most insects attracted to milkweed blossoms do so because of the rich nectar they provide. We then entertained they might be Soft Winged Flower Beetles, but that did not look correct, so we contacted Eric Eaton for assistance.
Eric Eaton provides a possible identification.
These remind me of dark-winged fungus gnats, family Sciaridae, but I cannot tell for certain from this one image.
Ed. Note: This BugGuide image supports Eric Eaton’s identification. Though BugGuide does not provide any information on adult food preferences, BugGuide does contain some images of adult Dark Winged Fungus Gnats feeding from blossoms.