56 Journal New York Entomological Society. [Voi. xii. 



Genus ERIOPHYES Sieb., 1850. 

 Sir David Morris, High Commissioner of Agriculture for the 

 British West Indies, recently brought to the Division of Entomology 

 some mite-galls on cotton from Montserrat. Mr. Ballou had pre- 

 served some of the mites on slides. Upon examining the material I 

 find that the galls are caused by a mite, a species of Eriophyes which 

 I propose to call E. gossypii. The cotton leaves were very heavily 

 infested with the galls, so much so that many were a mass of rough- 

 ened swellings, curled and distorted. Within the recesses of these 

 galls the mites were found in abundance, together with many eggs. 

 The damage to the cotton is so severe that a great deal of it was thrown 

 into the sea. Mr. Ballou, in the "West Indian Bulletin," Vol. iv, 

 p. 282, has given an account of the species. He recommends that 

 the weeders working in the field be supplied with bags in which to put 

 infested leaves, the bags, when filled, to be placed in boiling water. 



Eriophyes gossypii, new species. (Plate II, Fig. 4.) 



Body elongate, cylindrical, and tapering ; about six times as long as broad ; 

 abdomen with about seventy rings ; two pairs of bristles on lower sides, one at about 

 middle of length, the other half way from this to tip. At the tip there is a truncate 

 plate, from each outer corner of which arises a long curved bristle. Dorsum of ceph- 

 alothorax subtriangular, the sides slightly undulate, and in front truncate ; above 

 with three irregular subparallel ridges each side, the inner one the longest. Legs 

 short, the femora slightly thickened near base, a long bristle near tip of tarsus. 



In galls on cotton leaves, island of Montserrat, West Indies. 



EXPLANATION OF PLATE II. 



Fig. I. Tetranychoides californica Banks, a, mite, side view ; b, palpus ; <r, 

 tarsus I, and d, under side of beak. 



Fig. 2. Tenuipalpus calif ortiicus Banks, a, $ , b, 9 from above ; c, venter of 9 . 



Fig, 3. Tarsonemus latiis Banks, a,'^ ,b, $ from below ; c, affected mango shoot. 



Fig. 4. Eriophyes gossypii Banks, a, mite ; b, cephalothorax enlarged ; c, sec- 

 tion of gall. 



