34 



NEW YORK STATE MUSEUM 



Subspherical, pealike, hollow, pale yellowish green gall on under side of leaf, 

 usually on a side vein, diameter 5 to 7 mm. Fig. 32, pi. 3, fig. 9. Felt 

 '06b, p. 637 



Hym. Willow pea gall, Pontania pisum Walsh 

 Rounded or ovate, fleshy, yellowish green, usually rosy-cheeked gall, projecting 

 slightly on the upper surface, diameter 12 mm. Fig. 33. Felt '06b, p. 636 



Hym. Willow apple gall, Pontania pomum Walsh 



1/ 



Fig. 37- 

 R h a b d o - 

 phaga po d- 

 agrae Felt. 

 Swollen twig. 

 (Author's il- 

 lustration) 



,1 )|;;^ 



1 



Fig. 38. Rfha b'd o - 

 ph'aga,. c.oV n_u t a 

 Walsh. Swollen twig 

 and one in section show- 

 ing galleries. (Original) 



Very similar gall, prominent on both surfaces of the leaf, on S. p e t i o 1 a r i s. 

 Cosens, '17, p. 18 



Hym. Pontania petiolaris Rohw. 

 Fusiform, mid vein swelHng, length 3 mm, diameter .75 mm. Cosens in litt. 



Hym. ? E u u r a sp. 

 Twig galls 



Reared from twigs, gall unrecognized. Felt '076, p. 297 



Itonid. Asphondylia salictaria Felt 

 Larvae in subcortical cells; no swelling. Felt '156, p. 168 



Itonid. Dasyneura corticis Felt 



