KEY TO AMERICAN iMsECT GALLS 129 



Reared from same gall and probably zoophagous. Felt 'i ij, 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. E r i o j) h y e s 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 '156, p. 147 



Itonid. Dasyneura clematidis Felt 

 Ovate, reddish brown, axillary bud gall, diameter 4 mm. Felt 'o7e, p. 287 



I tonid . 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, E r i o p h y e s sp. 



Paeonia (peony) 



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



Itonid. J o a n n i s i a p e n n s y 1 v a n i c a Felt 



Magnoliaceae (magnolia family) 

 Liriodendron (tulip tree) 



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



Itonid. Tulip vein gall, Ceoidomyia sp. 

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

 p. 202 



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

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

 Sacken '62, p. 202 



Itonid. Tulip spot gall, Thecodiplosis liriodendri O. 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 



