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Green Soldier Fly - Hedriodiscus binotatus - female

Green Soldier Fly - Hedriodiscus binotatus - Female
Olathe, Johnson County, Kansas, USA
August 23, 2011
I recently posted a Odontomyia cincta which was ID'd on bugguide ( Now, I have found another green soldier fly and once I started looking through the Odontomyia cincta on bugguide thinking that was what it was, I noticed that some have eyes are separated ( and others right together (, but all identified as Odontomyia cincta. I was wondering if the O. cincta images with the eyes separate and eyes together are a male/female thing...or is there that much variation in that species? This is the first time I've found these gorgeous green flies and was thrilled each time to spot one. The image posted here didn't match up with any of the images I found on bugguide so far. Suggestions from anyone in bugguideville? Thanks!

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Green Soldier Fly - Hedriodiscus binotatus - female Green Soldier Fly - Hedriodiscus binotatus - female

Moved from Soldier flies.

Stratiomyidae: Hedriodiscus binotatus
Stratiomyidae: Hedriodiscus binotatus

Moved from ID Request.

Just a suggestion...
...Hedriodiscus binotatus.

With some species the eye separation with indicate the sex.
Sush as:
Toxomerus marginatus - The females eyes are separated while the males aren't. I don't know that this holds true in other species...

Thanks for the info...I had overlooked other subfamilies! I wonder what the advantages are for the different placement of eyes between the males and females?

Sex differences
More on how to tell the sexes apart in some groups here.
Males of many species have bigger eyes or bigger, more complex antennae to help them locate females.

I so enjoy learning about insects! I read your article...excellent!

Eye spacing
Per Stephen Creswell's website ( are dichoptic, while males are holoptic. I've now learned two new words!

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