114 



DR. A. C. OUDEMANS — A SHORT SURVEY OF 



Fig. 11. — Tetronychus carpini, Oiidms. ; 

 dorsal side ; P = peritrema ; 

 S = closed stigmata. — Original. 

 A species very noxious to 

 plants. 



Fig. V?j.—Myobia affinis, Poppe ; female ; 

 dorsal side ; S = closed stigmata ; 

 P=peritrema. — Copied, from Megnin, 

 Les paras, et les malad. paras., t. 24 : 1880. 



Fig. 12. — Cheletes eruditus, Schrank ; a 

 cosmopolitan species ) female ; dorsal 

 side ; P = peritrema ; S = closed 

 stigmata. — Copied from Oudemans, 

 in Tijds. Ent. v. 46, 1904, tab. 13.— 

 Useful. 



Fig. 14. — Bdella rubra, Lam., dorsal 

 side ; S 

 Useful. 



stigmata. — Original. — 



