Remarks
"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).
