56 NEW YORK STATE MUSEUM 



t 



Slight, hardly visible, wavy swellings at the base of tender new shoots, on Q. 

 catesbaei. Ashm. '8i, p. XV 



Cynipid. Neuroterus catesbaei Ashm. 

 Elongate twig swelling, length 20 mm, diameter 10 mm, on Q. d o u g 1 a s i. 

 Fullaway '11, p. 345 



Cynipid. Cynips kelloggi Full. 

 Bud-shaped, elongate, pointed apically, thin-walled and hollow. Length 3 to 

 4 mm, on trunk of white oak. Beutm. '17, p. 347 



Cynipid. Andricus gemmiformis Beutm. 

 Reared from slightly swollen, white oak twigs of Q. alba. Fig. 56. Felt 

 'o8e, p. 324 



Itonid. Oak twig midge, Lasioptera querciperda Felt 

 Elongate twig gall, the walls thin, consisting of thickenings of the woody tissues 

 and not visible externally or forming only slight swellings, on Q. p e d u n- 

 c u 1 a t a. Kieff. '10, p. 4 



Cynipid. Loxaulus ashmeadi Kieff. 



b Twig dwarfed but not specially modified 



Irregular, polythalamous swellings in the bud or very young leaves, producing 

 rosettelike clusters of small leaves on Q. platanoides. Fig. 53, 6. 

 Beutm. '10, p. 127 



Cynipid. Neuroterus distortus Bass. 

 Irregular enlargements of the small twigs, on Q. p r i n o i d e s. Fig. 53, i, 2. 

 Beutm, '10, p. 126 



Cynipid. Neuroterus tectus Bass. 

 Inconspicuous enlargements of the upper portion of very young, tender shoots, 

 on Q. o b t u s i 1 o b a. Beutm. '11, p. 359 



Cynipid. Dryophanta longicornis Bass. 



f Twig dwarfed, distorted and forms a short, ovoid mass, polythalamous 

 Woody, apical swellings 1 8 to 36 mm long, 1 2 mm in diameter, onQ. tinctoria 

 and Q. rubra. PI. 2, fig. 8. Bassett '64, p. 683 



Cynipid. Andricus scitulus Bass. 

 Woody, polythalamous twig gall, length 15 mm, diameter 6 mm, resembles the 

 gall of A. scitulus Bass, and that of A. tectus Bass., on Q. i 1 i c i - 

 folia, Q. imbricaria. Bassett '00, p. 311 



Cynipid. Andricus tuberosus Bass. 



d Twig swollen, dwarfed or distorted into a more or less club-shaped, polythalamous gall 



Irregular, potato-shaped, polythalamous, woody leaf or twig gall, green in summer 

 and brown in winter, diameter 1.8 cm, on Q. alba. Fig. 54. Beutm. '10, 

 p. 118 



Cynipid. Oak potato gall, Neuroterus batatus Fitch 

 Irregularly rounded, woody, aborted leaves and buds on young terminal twigfe, 

 diameter 4 to 12 mm, on Q. alba. Fig. 81, 3. Beutm. '10, p. 119 



Cynipid. Neuroterus consimilis Bass. 

 Irregular, length 5 to 100 mm, diameter 4 to 25 mm, similar to N. b a t a t u 

 but on the twigs (winter form) or the midrib and petiole of the leaves (tprirg 



