Fly or bee? - Cuterebra fontinella - BugGuide.Net

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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » Calyptratae » Oestroidea » Bot Flies (Oestridae) » New World Skin Bot Flies (Cuterebrinae) » Rodent and Lagomorph Bot Flies (Cuterebra) » fontinella group (Cuterebra fontinella group) » Mouse Bot Fly (Cuterebra fontinella) » Deer Mouse Bot Fly (Cuterebra fontinella grisea)

Photo#451366

Copyright © 2010 blueskye

Fly or bee? - Cuterebra fontinella

Puyallup, King County, Washington, USA
September 4, 2010
Size: 1 inch

This critter was sitting on a dry grass stem about 4 feet high (urban area bounded by protected 6 acre wetland). It buzzed loudly as it flew away.

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Contributed by blueskye on 5 September, 2010 - 12:28am
Last updated 5 September, 2010 - 1:37pm

sweet -- thanks guys

Moved from Cuterebra.

… v belov, 5 September, 2010 - 1:37pm

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Cuterebra fontinella grisea

Hi Blueskye,

This is a Peromyscus botfly. This one is Cuterebra fontinella grisea and a new subspecies for BugGuide. It uses deer mice (Peromyscus maniculatus) primarily as a host with a few records from Microtus oregoni as well. The white rump is a Cuterebra fontinella group trademark so you captured this well. Also nice to see the white on the lower face. The yellowish hairs on the mesoscutum (ie back) helps seperate this to grisea as well as the location you found it. If you have other pictures of this one from other angles please post it. Especially shots of the back. But I am pretty confident of this ID. A good find. Its a fairly common bot of Peromyscus so likely a lot of them produced in most years, but they are short lived as adults (a week to 10 days) so rarely seen as adults. I was expecting to see this species show up on BugGuide sooner or later, but yours is the first. I am guessing this one looks like a female... but if you had a top shot or a straight on face shot I could tell for sure.
Jeff

… George "Jeff" Boettner, 5 September, 2010 - 10:56am

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Moved

Moved from ID Request.

… v belov, 5 September, 2010 - 6:26am

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A

nasty fly, Cuterebra.
Great find.

… Jeff Hollenbeck, 5 September, 2010 - 1:40am

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Cool

Yes, a very cool find!

… Stephen_WV, 5 September, 2010 - 4:07am

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indeed; i'll ask Jeff Boettner to check it out

… v belov, 5 September, 2010 - 6:25am

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