What's That Bug? does not endorse extermination

Weird bug with wings
August 13, 2009
This bug was found in the corner of an outside window . We tried to make it fly away and it did not. It has long wings and the strange looking head and feelers. Just would like to know what it is. Out of four of us, none of us had ever seen such a bug.
Wanda
Walling, TN

Male Dobsonfly:  What exactly does he do with those mandibles???

Male Dobsonfly: What exactly does he do with those mandibles???

Hi Wanda,
He is big.  He is scary and he is perfectly harmless.  He is a male Dobsonfly.  From all we have read, those impressive mandibles are used somehow in the mating process.  We have read that they are used by males to compete for the attention of females, perhaps in battle, and we have also heard that the male uses them to subdue the female during copulation.  All this is just hearsay and one photo would say it all.  Doesn’t anyone have a photo that demonstrates just why a male Dobsonfly needs those impressive mandibles?  The female Dobsonfly, with her much smaller though more functional mandibles, might deliver a pinch if she is carelessly handled, but she too is harmless.

What's That Bug? does not endorse extermination

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