Giant black fly - Cuterebrinae? - Cuterebra tenebrosa -
Marin County, California, USA October 3, 2009 Size: 22 mm body length
This extremely large fly suddenly flew into my house a little while ago. Its size and loud buzzing had me thinking it was a large bumble bee at first, but then I soon realized it was actually a fly. I then assumed it was just a horse fly, but when it landed on the window I saw that the eyes were much too small and it held its wings differently. Eventually I convinced myself that it couldn't bite and worked up the nerve to grab it for some photos. Looking on here it most closely resembles the New World skin bot flies of the subfamily Cuterebrinae, but I don't see any on here that are all dark with a metallic blue abdomen.
Contributed by Natalie McNear on 3 October, 2009 - 2:44pm Last updated 5 October, 2009 - 9:19am
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