140 



NEW YORK STATE MUSEUM 



Potentilla (cinquefoil) 



Globose bud enlargement containing an oval larval cell, green turning brown i 

 diameter 8 to 12 mm. Fig. 140, 1-3. Beutm. '09, p. 144 



Cynipid. Cinquefoil axil gall, Gonaspis potentillae Bass. 

 Much enlarged, intemodal part of stem, apparently monothalamous. Stebb. 

 '10, p. 37 



Itonid. Internodal stem gall, Cecidomyia potentillae- 



c a u 1 i s Stebb. 



^i 



r ' 



Fig. 143. Nodu" 

 !ar stem gall, Las' 

 ioptera nodu" 

 1 o s a Beutm. (Au" 

 thor's illustration) 



Fig. 144. Leaf 

 roll of C a m p - 

 toneuromyi a 

 r u b i f o 1 i a Felt. 

 (Original) 



Elongate, fusiform, polythalamous, stalk swelling, length 15 to 45 mm, diameter 

 5 to 8 mm. Fig. 140, 15, 16. Beutm. '09c, p. 141 



Cynipid. Fusiform stem gall, Diastrophus fusiformans 



Ashm. 

 Elongate, oval, abrupt or blisterlike swellings on the stalk and midribs, mono- 

 thalamous when single, polythalamous when coalescent, green turning brown, 

 size variable, on P. canadensis. Fig. 140, 4-14. Beutm. '09c, p. 142 



Cynipid. Diastrophus niger Bass. 

 A whitish erineum resembling minute tufts of grass, on both surfaces of the leaf. 

 Chadwick '08, p. 138 



Acarid. Eriophyes sp- 



