THE ACABIXA OR MITES— BAXKS. 



)ii 



the common greenhouse species. There are several remedies for red 



spider. One is to keep the plants moist, spraying- them with water 



once a day. But the best remedy is flowers of sulphur applied either 



as a dry powder, or as a spra}-. Bisulphide of lime is also an etiective 



remedy, and tobacco water 



is sometimes used. The ^f 



species of Stigma^ris are 



Fig. 34. — Bryobia pratensis, i.arva 

 (bureau of entomology!. 



-Stig.maeus floridaxus: mite, mouth parts, 

 and claw.s. 



elongate and have short legs. They are smaller than TetranycJais^ 

 but live in the same manner. Our one species, S. jforidanus Banks, 

 occurs upon the bases of the imbricated leaves of the pineapple. It 



Fig. 



Fig. 36.— Tetranychoides californica, and palpus en- 

 larged. 



is of considerable economic importance owing 

 to the fact that its punctures give certain de- 

 structive fungi access to the ti.ssue of the leaf. 

 The remed}'. Prof. Rolfs found, is to place a 

 small quantity of tobacco dust in the bud of 

 the plant, the dew and rain washing it down upon the mite.>' 

 application is usually sufficient. 



In XeopJnjUohius the body is short and the legs are very long: the 

 tarsal joint slightly swollen in the middle and ending in two claws. 

 Our only known species was taken on oak leaves in Alabama. 



-Tenuipalpus cal- 

 ifornicus. 



One 



