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Liliales Galls Caused by Undescribed Midges

Leaf mines on Solomon's Seal Leaf mines on Solomon's Seal Polygonatum Leaf Spot Gall(?) Id Request Roundish spots Leaf mines on Uvularia
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Nematocera" (Non-Brachycera))
Infraorder Bibionomorpha (Gnats, Gall Midges, and March Flies)
Superfamily Sciaroidea (Fungus Gnats and Gall Midges)
Family Cecidomyiidae (Gall Midges and Wood Midges)
Subfamily Cecidomyiinae (Gall Midges)
Supertribe Lasiopteridi
No Taxon Liliales Galls Caused by Undescribed Midges
"A number of American Liliaceae* [members of the lily family] have simple leaf spot galls about 8 mm in diameter made by unidentified cecidomyiids for which the adult stage has not been reared. Each spot contains a single larva that leaves the gall when full-grown. At that time the spot becomes translucent and more noticeable. . . Ledomyia crispata (Felt) and Camptoneuromyia rubifolia Felt have been indirectly associated with this damage, but they are probably not primary plant feeders. Larvae taken from the galls resemble Alycaulini and Lasiopterini in that they have only four lateral papillae on each side of the thoracic segments, but that is a character that could have been derived separately in other Lasiopteridi." (1)

7/26/2012 update: in an email, Raymond J. Gagné reports having reared a Meunieriella species from the galls on Smilax, so images of those galls have been moved to this page.

* Since this was written, Liliaceae has been split into several families. Most of the galls in the guide are on Smilax, which is now in Smilacaceae; similar spot galls also occur on Uvularia (now in Colchicaceae), Maianthemum, and Polygonatum (both now in Asparagaceae).
Works Cited
1.The Plant-Feeding Gall Midges of North America
Raymond J. Gagné. 1989. Cornell University Press.