Mystery Thing is Horse Fly Egg Mass

Subject: What am I?
Location: Pennsylvania
June 5, 2015 10:13 pm
Can’t seem to find what this guy is.
Signature: Heather Cookson

Mystery Thing
Horse Fly Egg Mass

Dear Heather,
Your mystery thing has us quite stumped.  It does not look like an insect, but it appears that it might have been produced by an insect.  We do not believe this is an egg mass, but it might be some type of shelter.  The “scales” look somewhat like seeds.  Could you please provide more details on where it was found and regarding its size.  Perhaps one of our readers will be able to contribute some valuable information.

Update:  Horse Fly Egg Mass
Immediately after posting, we received a comment identifying this as a Tabanid or Horse Fly Egg Mass, and a link to BugGuide.  Mystery solved thanks to a diligent reader. 

Eric Eaton Confirms
Hi, Daniel:
That is a batch of horse fly or deer fly eggs.
author, Kaufman Field Guide to Insects of North America

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