8 INSECT-GALLS OF THE VICINITY OF NEW YORK CITY 



tion of hard cells around a branch and is densely covered with long green 

 filaments forming a moss-like mass. About i ^ in. in diameter. On the twigs 

 of sweet brier {Rosa ruhiginosd). Common locally. 



7. Mealy Rose Gall (Rhodites ignota Osten Sackcn). — Round, woody, about 

 the size of a large pea, and covered with a white mealy substance. Sometimes 

 two or three coalesce, thus forming an elongated mass of more irregular shape, 

 inside are several cells. On leaves of wild roses. Common. 



8. Rose Lentil Gall (Rhodites Icnticitlaris Bass.). — Lentil shaped. In the 

 parenchyma of the leaves of the wild rose {Rosa luctda). j\ to \ in. in horizontal, 

 and i in. in vertical diameter. Not common. 



9. Bassett's Blackberry Gall {Diastrophus bassetln Beuten.). — Irregularly 



