huge black fly
August 6, 2011 10:55 pm
I live in the country. Eagle creek Oregon. Found this in the laundry room. Its huge! All black. Little wings on top of its shoulders. Is it a horse fly? I’ve never seen a fly this huge before. Its crawling on a quarter!
This is a Rodent Bot Fly, and we believe it is Cuterebra tenebrosa which we identified on BugGuide. These Bot Flies are skin parasites on rodents, and the host insect for Cuterebra tenebrosa is the wood rat.