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Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

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Species Heterarthrus nemoratus - Late Birch Leaf Edgeminer

Sawfly - Heterarthrus nemoratus
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 Heterarthrini
Genus Heterarthrus
Species nemoratus (Late Birch Leaf Edgeminer)
Other Common Names
Birch Leaf Edge Miner(1)
Explanation of Names
Heterarthrus nemoratus (Fallén 1808)
4.5 mm(1)
native to Europe & w. Siberia, adventive in NA: Canada (widely distributed), AK & ne. US(3)(1)(4)
host: Betula (Birch)(2)
Life Cycle
parthenogenic; the only birch leafmining sawfly to pupate in the leaf
introduced from Europe early in the 20th century(3); at one time a severe pest of wild birch, now a minor aesthetic pest(1)
Internet References
Species pages: Ellis (2007) (Europe)(5) | Edmunds (2007) (UK)(2) | Pitkin et al. (2007-) (UK)(6)