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For Insects, Spiders & Their Kin
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Upcoming Events

Discussion of 2018 gathering

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

Tachnid Fly Size?

I saw a tiny fly, the size of maybe a common flea, less then a mm, on a j-hooked monarch, and I was wondering if it could have been laying eggs on him. There's no info on the size of the flies that parasitize monarchs in the guide, or else I couldn't find it. Anyone out there know?


3-14 mm
One of my guides lists them from 3-14 mm, which excludes what you saw.

Thanks, Lynette. I didn't see any eggs on the caterpillar, either.

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