What's That Bug? does not endorse extermination

Black Horse Fly

Posted by September 9th, 2008 at 12:00 am

Categories

Flies

A fly?
This insect is very large. It was at least approx
1" long. Looks like a fly, buzzed like
a fly. Have never seen a fly (if this is what it
is) this large on our southwestern Wisconsin farm.
Thanks in advance.
Doug & Cindy Schriber

black horse fly doug Black Horse Fly

Hi Doug and Cindy,
This is a female Black Horse Fly, Tabanus atratus. The female,
which can be identified by the space between her eyes, is
the biting sex.

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