Lined June Beetle

Subject: Unidentified Lashed Beauty in Colorado
Location: Pueblo, Colorado
July 25, 2016 11:13 pm
Dear Bugman,
Curious what type lashed bug this might be. I found it on my front porch one evening about 2 weeks ago, early July. It was maybe an inch and a half or so. Hoping you can help.
Signature: Curious friend

Lined June Beetle
Lined June Beetle

Dear Curious Friend,
This is a Lined June Beetle in the genus Polyphylla, and according to BugGuide:  “Large June beetles, most with obvious white scales on elytra often forming stripes. Species identification often difficult.”  It might be a Ten Lined June Beetle,
Polyphylla decemlineata, which does range as far east as Colorado.  What you have called “lashes” are actually the flabellate or fan shaped antennae that characterize the male June Beetles in this genus.

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