KEY TO AMERICAN iNsECT GALLS 12^ 



Reared from same gall and probably zoophagous. Felt 'iij, p. 473 



Itonid. Trotteria sp. 



Anemone (Anemone) 

 Slightly enlarged, loose bud gall on A. canadensis. Felt '156, p. 139 



Itonid. Anemone bud gall, Dasyneura anemone Felt 

 Golden brown erineum on the under side of the leaf of A. virginiana. 

 Chadwick '08, p. 127 



Acarid. Eriophyes sp. 



Clematis (Virgins bower) 



Oval stem gall, length 2 cm, diameter i cm. PI. 4, fig. i. Thompson '15, p. 82 



Dipt. Agromyza sp. 

 Irregular, subglobular bud gall, diameter i cm. PI. 9, fig. 4. Felt 'o8e, p. 393 

 Itonid. Clematis bud gall, Contarinia clematidis Felt 

 Irregular, subglobular bud gall, diameter i cm. Felt 'i5e, p. 147 



Itonid. Dasyneura clematidis Felt 

 Ovate, reddish brown, axillary bud gall, diameter 4 mm. Felt '076, p. 287 



Itonid. Neolasioptera clematidis Felt 

 Enlarged, reddened, flower buds. Felt 'o7e, p. 302 



Itonid. Clematis flower midge, Prodiplosis floricola Felt 

 Unopened, apparently normal flowers, probably predaceous. Felt 'o8e, p. 409 



Itonid. Lestodiplosis clematiflorae 



Felt 

 Small, short, whitish tubes, open at the end, in crowded patches on leaves, 

 bud stalks and buds. Chadwick '08, p. 131 



Acarid. Clematis mite gall, Eriophyes sp. 



Paeonia (peony) 



Reared from decaying roots. Felt 'iik, p. 476 



Itonid. Joannisia pennsylvanica Felt 



Magnoliaceae (magnoha family) 

 Liriodendron (tulip tree) 



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



Itonid. TuHp vein gall, Cecidomyia sp. 

 Midrib, irregular, polythalamous leaf gah, length 1.5 cm. Osten Sacken '62, 

 p. 202 



Itonid. Tulip midrib gall, Cecidomyia tulipiferae O.S. 

 Purplish bhster gall on -the leaf, diameter about 3 mm. PI. 10, fig. 7. Osten 

 Sacken '62, p. 202 



Itonid. Tuhp spot gall, Thecodiplosis liriodendriO. S. 



Lauraceae (laurel family) 

 Sassafras 



Reared from curling leaves of S. v a r i i f o 1 i u m. Felt '06a, p. 29 



Itonid. Sassafras leaf midge, Dasyneura sassafras Felt 



