October, '11] FELT: GALL MIDGE HOSTS ' 463 



Lactuca (wild lettuce) 

 Irregular stem gall, diameter, 1.75 cm Lasioptera lactucoe Felt. 



Laportea (wood nettle) 



Irregular, oval stem gall Cecidomyia sp. 



Irregular, probably bud gall, length, 1.2 cm Cecidomyia sp. 



Larrea (creosote bush) 

 Gall undescribed Asphondylia auripila Felt. 



Lathyrus \LiRiTiMus (bcach pea) 

 Rolled leaflets, length, 1 to 2 cm Dasyneura marilima Felt. 



Lepidium (pepper grass) 

 Swollen, discolored seed capsules Dasyneura lepidii Felt. 



Lespedeza violacea 

 Stem gall, length, 5 mm. ; diameter, 3 mm Cecidomyia sp. 



LiLIUM superbum (lily) 

 Larv'se on leaves M^jcodiplosis Carolina n. sp_ 



Liriodendron (tulip tree) 



Purplish, blister gall on leaf Thecodiplosis liriodendri O. S. 



Midrib, polythalamous leaf gall, length, 1.5 cm Cecidomyia tulipiferoe O. S. 



Globular, midrib or vein gall, monothalamous, length, 5 mm Cecidomyia sp. 



LupiNUS (Lupine) 



Reared from undescribed gall Lasioptera lupini Felt. 



Reared from leaflets Dasyneura trifolii Loew. 



Lycopersicum esculentum (tomato) 

 Reared from flowers Contarinia lycopersici Felt . 



Lycopus (bugle weed) 



Subglobular stem gall, length, 8 to 10 mm Lasioptera lycopi Felt. 



Fusiform stem gall, length, 1.5 to 2 cm Lasioptera mitchellae Felt. 



Lysimachia (loose strife) 



Loose, apical bud gall Dasyneura lysimachiae Beutm. 



Gall undetected, possibly from vegetable matter Leslremia solidaginis Felt. 



Maianthemum (false lily-of-the-valley) 

 Blister gall, brown, diameter, 6 mm Cecidomyia sp. 



Manihot (Cassava) 

 Leaf galls Itonida manihot Felt. 



Mangifera (mango) 

 Reared from subcortical gall Asynapta mangiferoe Felt. 



Medicago (alfalfa) 

 Seed pods of alfalfa Asphondylia sp. 



