Large beetle in NY
Location: Long Island, New York, USA
June 28, 2011 5:48 pm
I don’t think I’ve seen a bug this big in New York before. It’s slowly walking around my sidewalk and sticking its butt up in the air like this, with a yellow thing that is protruding and retracting.
Signature: J

Broad-Necked Root Borer

Hi J,
Your insect is a female Broad-Necked Root Borer,
Prionus laticollis, and the yellow thing is her ovipositor which is used to lay eggs.  According to BugGuide:  “Eggs are inserted into ground (or under litter) in groups. Larvae tunnel downward to feed on living roots of a variety of trees and shrubs. At first they may feed on bark, but then proceed to hollow out small roots.”

Broad Necked Root Borer

Location: New York

One Response to Female Broad-Necked Root Borer

  1. Turbodmc says:

    Yep just found one walking up side of brick house, I think it is the largest bug I ever saw here on Long Island. If my wife had seen it she would have a melt down…lol

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