Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Profenusa thomsoni - Amber-marked Birch Leaf Miner

Sawfly - Profenusa thomsoni - female Birch leafminer? - 1 - Profenusa thomsoni Birch leafminer? - 1 - Profenusa thomsoni Birch Leafminer? - 2 - Profenusa thomsoni Bog Birch leaf blotch mine, larva - Profenusa thomsoni River birch leaf mines - Profenusa thomsoni River birch leaf mines - Profenusa thomsoni Profenusa thomsoni - Amber-marked Birch Leaf Miner - Profenusa thomsoni
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Symphyta" - Sawflies, Horntails, and Wood Wasps)
Family Tenthredinidae (Common Sawflies)
Subfamily Heterarthrinae
Tribe Fenusini
Genus Profenusa
Species thomsoni (Amber-marked Birch Leaf Miner)
Other Common Names
Birch Leaf Miner
Explanation of Names
Profenusa thomsoni (Konow 1886)
Size
4 mm(1)
Range
native to, and widespread across the Palaearctic(2), adventive in NA and now transcontinental in the north(1)
Season
Late May to Jul, may continue to emerge late into Aug(1)
Food
hosts: primarily, Betulaceae, common on a number of birch species (Betula)(1)
Remarks
Introduced to NA early 1900s; spread westward, reached AB by 1970, reached Anchorage, AK ca. 1996
Internet References
Species pages: anon. [AB](1) | Soper et al. (2009) | Ellis (2007) (Europe)(3) | Edmunds (2007) (UK)(4) | Pitkin et al. (2007-) (UK)(5)