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Species Fenusa ulmi - Elm Leafminer

Sawfly on Trillium - Fenusa ulmi Elm Leaf Miner - Fenusa ulmi Elm Leaf Miner, head - Fenusa ulmi Elm Leaf Miner, ventral - Fenusa ulmi leap miner on Elm - Fenusa ulmi Tenthredinidae, face - Fenusa ulmi Fenusa ulmi?  from a street tree that is probably an Ulmus americana cultivar - Fenusa ulmi Fenusa ulmi from Ulmus procera - Fenusa ulmi
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 Fenusa
Species ulmi (Elm Leafminer)
Synonyms and other taxonomic changes
Kaliofenusa ulmi
Explanation of Names
Fenusa ulmi Sundevall 1844
Size
♀ ~4 mm(1)
Range
native to Europe, adventive in NA (ne. US & se. Canada; probably introduced with imported elms)(1); recently established in the Pacific Northwest as well(2) [also known on the Pacific coast of Russia(3)]
Food
hosts: Ulmus(1)
Life Cycle
parthenogenetic (males unknown in NA, rare in Europe), univoltine; adults from mid-May to early June; larvae mine elm leaves until mid-July, when they drop to the ground, where they form thin cocoons in the soil and overwinter(1)
Remarks
earliest NA record: NY 1898(1)
Internet References
Species pages: Ellis (2007) (Europe)(4) | Edmunds (2007) (UK)(5) | Rosetta (2011)(2)
Works Cited
1.Nearctic sawflies. III. Heterarthrinae: Adults and larvae (Hymenoptera: Tenthredinidae)
D.R. Smith. 1971. Agricultural Research Service, USDA Technical Bulletin No. 1420. 84 pp.
2.Pacific Northwest Nursery IPM Website
3.Keys to the insects of the European part of the USSR. Vol. 3. Hymenoptera. Part 6.
Zhelokhovtsev A.N., Tobias V.I., Kozlov M.A. 1993. Keys to the Fauna of the USSR 158: 1-432.
4.Ellis W.N. (2007-) Leafminers of Europe
5.British leafminers