OF WASHINGTON. 



295 



Tarsonemus lives on the leaves of shrubs and herbs, sucking 

 the juices of the plant. Several species are known in Europe : 

 T. oryzce injures rice in Italy, T. buxi lives on box, T. Jlori- 

 colus occurs on various field plants, and T* krameri is found in 

 Germany, in small galls on certain grasses. Mr. E. E. Green has 

 recorded Acarus translucens, which is evidently a Tarsonemus, 

 as injurious to the buds of the tea-plant in Ceylon. 



Some time ago, Mr. F. A. Sirrine, of the Jamaica branch of 

 the N. Y. State Agric. Exper. Station, sent me for determina 

 tion some mites found in abundance on the leaves of chrysanthe 

 mums in a greenhouse. They proved to belong to Tarsonemus, 

 and, as they differ from the known forms, I propose to describe 

 as 



Tarsonemus pallidus, n. sp. 



Pale greenish hyaline. Body ( ) elliptical, the mouth-parts slightly 

 projecting in front; at tip it is indented in the middle and a little each 

 side, showing on the under side two lobes, before which is a short trans 

 verse line. Legs I and II subequal, rather longer than width of body 

 behind the second pair, a bristle on the outside of last two joints of leg I 

 and one on the inside of last joint, one on outside of the two intermediate 

 joints of leg II; III legs about as long as width of body in middle, one 

 bristle on last joint and three on next to last; IV pair very slender, 



FIG. 17. Tarsonemus pallidus, enlarged. 

 (Original.) 



