64 



NEW YORK STATE MUSEUM 



clustered in fissures or slits on the terminal twigs, on Q. c i n e r e a. Ashm. 



'87, p. 143 



Cynipid. Andricus difficilis Ashm. 

 Generally oval, sometimes irregularly shaped, usually smooth, cells filling longi- 

 tudinal slits or fissures in twigs of Q. rubra. Ashm. '97, p. 121 



Cynipid. Andricus excavatus Ashm. 

 Globose, hard, brown twig galls with a diameter of 7 to 10 mm, occurring several 

 together in fissures in the twigs, onQ. imbricaria and Q. i 1 i c i f o 1 i a. 

 Ashm. '97, p. 122 



Cynipid. Andricus imbricariae Ashm. 



Pig. 61. Oak bul- 

 let gall, D i s h o 1 - 

 caspis globulus 

 Fitch. (Original) 



Fig. 62. D i s h o 1 • 

 caspis omnivora 

 Ashm. (Origina.) 



(6) Not inserted in fissures on the twigs 



Numerous small, oblong, rugose, budlike galls surrounding the twig, sometimes 

 issuing from the sides of the larger branches, length 2.5 to 3 mm, on 

 Q. c i n e r e a. Fig. 59. Ashm. '85, p. IX 



Cynipid. Andricus gemmarius Ashm. 

 Oblong, oval, longitudinally ribbed, brown galls without a distinct cell, dehiscent, 

 arising in clusters of two to three in bud axils, on Q. c i n e r e a. Ashm. 

 '87, p. 142 



Cynipid. Jumping ribbed gall. Andricus saltatus Ashm. 

 Ellipsoidal, smooth, monothalamous, snufif-colored twig galls, length 5 to 7 mm, 

 on Q. g a r r y a n a. Gill. '94, p. 235 



Cynipid. Callirhytis washingtonensis Gill. 

 Small, round, monothalamous twig galls, smooth, when dry wrinkled and 

 resembling pepper corns, diameter 5 mm, on Q. alba. Bassett '90, p. 81 



Cynipid. Andricus indistinct us Bass. 



