Beetle - Chrysomela semota

Moved

Moved from Cottonwood Leaf Beetle.

… john and jane balaban, 5 September, 2008 - 1:13pm

Keys out to C. semota. The me

Keys out to C. semota. The median spots are not long enough to be. C. scripta.

… John R. Watts, 2 September, 2008 - 7:48pm

Is the key online? I wonder

Is the key online? I wonder if any others are also wrong?

… Tom Bentley, 3 September, 2008 - 10:21pm

I used my hard copies of Wilc

I used my hard copies of Wilcox and Brown to ID it.

… John R. Watts, 5 September, 2008 - 9:30am

We scanned through the images

when we saw this, and yours was clearly the shortest, though

came pretty close.

… john and jane balaban, 3 September, 2008 - 10:27pm

This specimen also keys out t

This specimen also keys out to C. semota. The area in the key that separates out scripta describes the intermediate spot of the median group of three being either six to seven times as long as wide (scripta and laurentia) or very rarely more than five times as long as wide (texana, lineopunctata, confluens, and semota). The lack of bluish cast to the spots would exclude confluens, the other species it might be confused with.

… John R. Watts, 5 September, 2008 - 9:40am

So a new species for the guid

So a new species for the guide? U guys feel comfortable?
Tom

… Tom Bentley, 3 September, 2008 - 10:42pm

We're tempted by

Chrysomela scripta - Cottonwood Leaf Beetle in the guide here, but we don't have any images from anywhere near Montana yet??

… john and jane balaban, 10 July, 2007 - 7:32pm

Chrysomela scripta

I agree with the id. Compare also here: http://www.cedarcreek.umn.edu/insects/album/024107064ap.html

… Rob Westerduijn, 11 July, 2007 - 1:25pm