Sawfly - Arge humeralis

Moved

Moved from Arge.

… Beatriz Moisset, 10 December, 2008 - 1:26pm

plant?

If the plant you observed the insect on was poison ivy, I think you can consider ID as safe. The colouration is clearly aposematic, just like expected for an insect developing on a highly poisonous plant.

… Boris Büche, 31 July, 2007 - 3:44am

Arge confirmed

. . . and of peculiar colouration, so I do not doubt your ID (but I´m only an amateur concerning sawflies).

… Boris Büche, 29 July, 2007 - 12:17pm

"peculiar coloration"

Thanks, Boris. I am adding an image that shows the thorax and abdomen colors, although the head is not shown. Peculiar, but striking. You should doubt my ID. In this case, as well as others, I am just attempting to match images identified on BugGuide and then asking people like you if it is correct.

… CharlesMatson, 29 July, 2007 - 2:23pm

Arge humeralis?

I lean toward Arge humeralis, but I am not an authority on these:-)

… Eric R. Eaton, 30 July, 2007 - 4:16pm

must be Arge humeralis

… v belov, 9 October, 2008 - 3:18am