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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Symphyta" - Sawflies, Horntails, and Wood Wasps » Common Sawflies (Tenthredinidae) » Heterarthrinae » Fenusini » Fenusa » Elm Leafminer (Fenusa ulmi)

Species Fenusa ulmi - Elm Leafminer

Classification · Synonyms and other taxonomic changes · Explanation of Names · Size · Range · Food · Life Cycle · Remarks · Internet References · Works Cited

Fenusa ulmi? from a street tree that is probably an Ulmus americana cultivar - Fenusa ulmi

Fenusa ulmi from Ulmus procera - Fenusa ulmi

Elm Leafminer - Fenusa ulmi - 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 PNW(2) • known on the Pacific coast of Russia(3)

Food

hosts: Ulmus(1)

Life Cycle

One generation per year.(4) Parthenogenetic (males unknown in NA, rare in Europe), univoltine; adults from mid-May to early June; larvae mine elm leaves until mid-July, then drop to the ground and form thin cocoons in soil and overwinter(1)

Remarks

Earliest NA record: NY 1898(1)

Internet References

Species pages: Ellis (2007) (Europe)(5) • Edmunds (2007) (UK)(6) • Rosetta (2016)(2) • Green (2021)(7)

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.	Eastern Forest Insects Whiteford L. Baker. 1972. U.S. Department of Agriculture · Forest Service.

5.	Ellis W.N. (2007-) Leafminers of Europe

6.	British leafminers

7.	Green A.J. (2021) The Sawflies (Symphyta) of Britain and Ireland

Contributed by Charley Eiseman on 16 February, 2012 - 9:22am
Additional contributions by v belov, Marci Hess
Last updated 25 December, 2023 - 6:21pm

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