30 INSECT-GALLS OF THE VICINITY OF NEW YORK CITY 



65. Touch-me-not Gall {Cccidomyia impatiens Osten Sacken). — Globular, 

 succulent, semi-transparent, containing a number of cells inside. At base of 

 flower of touch-me-not {Impatiens biflora). August. Not common. 



66. Oak Pill Gall {Cccidomyia pilula; Walsh). — Usually rounded, hard 

 and woody. Frequently two or more galls are confluent and assume a very 

 irregularly rounded or elongated form. Inside are several cells. Brown or green. 

 On upper surface of leaves of different kinds of oak. Very common. 



67. Oak Spangles {Cccidomyia poculum Osten Sacken). — Rounded, saucer- 



