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Upcoming Events

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

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Species Metallus lanceolatus

leaf mine - Metallus lanceolatus leaf mine - Metallus lanceolatus leaf mine larva - Metallus lanceolatus Metallus lanceolatus blotch mine of Geum macrophyllum - Metallus lanceolatus Tenthredinidae, ovipositor - Metallus lanceolatus - female White avens leaf miner - Metallus lanceolatus Sawfly - Metallus lanceolatus - female
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 Metallus
Species lanceolatus (Metallus lanceolatus)
Synonyms and other taxonomic changes
Metallus bensoni Smith 1971, Metallus gei (Brischke 1883)
Explanation of Names
Metallus lanceolatus (Thomson 1870)
♀ 3.5-4.5 mm(1)(2)
native to Europe(2), adventive in our area and now found across n. NA
Larvae mine in leaves of avens (Geum, Rosaceae)(3)
Life Cycle
Leaf mine in Avens, larva, adult
earliest NA record: BC 1936(1)
Print References
Eiseman, C. S., & Smith, D. R. (2017). Nearctic Species of Metallus Forbes (Hymenoptera: Tenthredinidae): Biology and Distribution. Proceedings of the Entomological Society of Washington, 119(4), 551-565.
Internet References
Species pages: Ellis (2007) (Europe)(3) | Edmunds (2007) (UK)(4) | Pitkin et al. (2007-) (UK)(5)