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Species Fenusa dohrnii - European Alder Leaf-mining Sawfly

Fenusa dohrnii Fenusa dohrnii Fenusa dohrnii Patch and circle - Fenusa dohrnii leaf mines - Fenusa dohrnii TENTHREDININAE Heterarthrinae: Fenusa dohrnii? #1 - Fenusa dohrnii TENTHREDININAE Heterarthrinae: Fenusa dohrnii? #1 - Fenusa dohrnii TENTHREDININAE Heterarthrinae: Fenusa dohrnii #2 - Fenusa dohrnii
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 dohrnii (European Alder Leaf-mining Sawfly)
Other Common Names
European Alder Leafminer
Synonyms and other taxonomic changes
Caliosysphinga dohrni Tischbein, 1846
Explanation of Names
Fenusa dohrnii (Tischbein, 1846)
♀ ~4 mm(1)
holarctic; transcontinental in so. Canada & n. US south to PA-IL-UT-NM-OR(1)
host: Alnus (alders); larvae mine in the leaves(1)
Life Cycle
Likely multiple generations per year(1)
Overwinter as larvae in the ground; pupation occurs in spring.(2)
Adults lay eggs in late May and early June. Full-grown larvae drop to the ground to pupate.(2)
A 2nd generation of adults appear from late July to early Sept.(2)
males unknown(1)
Internet References
Edmunds, Rob. (2007). Fenusa dohrnii (Tischbein, 1846). British Leafminers.(3)
Pitkin, Brian, Willem N. Ellis, Colin Plant, & Rob Edmunds. (2007-2019). Fenusa dohrnii (Tischbein, 1846). The Leaf and Stem Mines of British Flies and Other Insects (Coleoptera, Diptera, Hymenoptera, and Lepidoptera).(4)
Ellis, Willem N. (2007). Fenusa dohrnii (Tischbein, 1846). Leafminers and plant galls of Europe.(5)
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.Eastern Forest Insects
Whiteford L. Baker. 1972. U.S. Department of Agriculture · Forest Service.
3.British leafminers
4.Pitkin B., Ellis W., Plant C., Edmunds R. (2007-) The leaf and stem mines of British flies and other insects
5.Ellis W.N. (2007-) Leafminers of Europe