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Photo#1040731
Amber-Marked Birch Leaf Miner - leaf and larva - Fenusella nana

Amber-Marked Birch Leaf Miner - leaf and larva - Fenusella nana
Silverwood, York County, New Brunswick, Canada
July 16, 2013
Leaf miner damage has been very common on small birch trees around here in the past few years. I identified this one using Rose and Lindquist (1997) Insects of Eastern Hardwood Trees, but I'm not 100% sure I'm correct. These pics were discovered after I had placed the Nefusa ambigua images into the Heterarthrinae.

So, I think these may be TENTHREDININAE Heterarthrinae: Profenusa thomsoni - Amber-Marked Birch Leaf Miner.

Images of this individual: tag all
Amber-Marked Birch Leaf Miner - leaf and larva - Fenusella nana Amber-Marked Birch Leaf Miner - leaf and larva - Fenusella nana

Moved
Moved from Unidentified Leaf Mines.

The mines and larva both key to this species using:

Digweed, Scott C., Chris J. K. MacQuarrie, David W. Langor, Daryl J. M. Williams, John R. Spence, Kathryn L. Nystrom, and Louis Morneau. 2009. Current status of invasive alien birch-leafmining sawflies (Hymenoptera: Tenthredinidae) in Canada, with keys to species. The Canadian Entomologist 141(3):201-235.

Profenusa thomsoni mines do not begin at the leaf margin.

 
OK
Sorry, I didn't use a key, but I'll look this one up. Need to get more references! Thanks for catching this.

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