204 NEW YORK STATE MUSEUM 



Lobulate bud gall. Felt 'iij, p. 455 



Itonid. Rhopalomyia sp. 

 Globose, fleshy, terminal, polythalamous twig gall, diameter 7 to 12 mm. 

 Felt '16 



Itonid. C e c i d o m y i a sp. 

 Stem gall. Felt '151, p. 256 



Itonid. Rhopalomyia baccharis Felt 

 Stem gall. Busck '03, p. 827 



Lepid. Gnorimoschema baccharisella Busck 



Ericameria 



Small, rosette galls, the leaflets more or less recurved, really aborted branchlets 

 and usually on the main stalk near the ground, length 12 mm, diameter 8 mm. 

 Fig. 233. Felt 'i6f, p. 190 



Itonid. Rhopalomyia ericameriae Felj 



Antennaria (everlasting, ladies' tobacco) 

 Corm-shaped bud gall, the leaflets recurved, length 8 to 12 mm. Felt 'i6d, 



P- 133 



Itonid. Everlasting bud midge, Asphondylia antennariae 



Whir. 

 Elongate, oval bud galls, the leaflets scarcely recurved, length 3 to 5 mm. Felt 

 '151, P- 270 



Itonid. Rhopalomyia antennariae Whir. 

 Globose, white, woolly masses with white fibers 5 mm long radiating from hard, 

 thin-shelled cells. Felt '151, p. 266 



Itonid. Woolly bud midge, Rhopalomyia pilosa Felt 



Gnaphalium (cudweed) 



Narrowly ovate, white, woolly bud gall 



Itonid. Cudweed bud gall, Asphondylia sp. a2697 



Silphium (rosinweed) 

 Ovate, frequently clustered, flower galls, length 4 to 5 mm. Fig. 235, 6. Beutm. 

 'loa, p. 140 



Cynipid. Rosinweed flower wasp. Ay lax laciniatus Gill. 

 Irregular, apical, polythalamous, green, stem swellings, length 30 to 75 mm. Fig. 

 235, 4, 5. Beutm. 'loa, p. 139 



Cynipid. Rosinweed stem wasp, Aylax leavenworthi Bass. 

 Inhabiting oval cells in apparently normal stems. Fig. 235, 7. Beutm. 'loa, 

 p. 141 



Cynipid. Aylax rufus Gill. 

 Aylax gillettei Kieff. 



Parthenium 



Woolly gall, diameter 5 mm. Fig. 234. Ckll. '00, p. 201 



Itonid. Paradiplosis partheniicola Ckll . 



