What's That Bug? does not endorse extermination

Fly I Have Never Seen Before
Tue, Oct 14, 2008 at 5:20 AM
Bugman, I resent the pictures I originally sent yesterday. Hopefully they are larger. Hi Bugman, I was sitting on my front porch this summer (June maybe) and this little one flew onto the banister and did not move even when I went to touch it. I have never seen a fly like this before or since. I live in Illinois. Love your site.
Fly Curious
Homer Glen, Illinois

Striped Horse Fly

Striped Horse Fly

Dear Fly Curious,
First, thanks for sending the larger photographs.  The original tiny files were not very good for exact identification.  This is a male (we believe) Striped Horse Fly, Tabanus lineola.  According to BugGuide you can distinguish between the sexes this way: “Females: pale median stripe on abdomen bordered by dark submedian stripes; eyes with 3 green bands; scutellum concolorous with thorax
Males: body pattern similar to females; eyes bare (no hairs) with large upper facets sharply differentiated from smaller lower facets; costal cell of wing clear; prescutal lobe paler than rest of thorax; palps white ”

Striped Horse Fly

Striped Horse Fly

What's That Bug? does not endorse extermination

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