Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

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


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.