LIST OF ILLUSTEATTOT^S. 



TEXT FIGURES. 



Page. 



Dorsal view of a Mite 2 



Ventral view of a Mite 4 



Palpi of various forms 5 



Legs of various Mites , 6 



Anatomy of Ganiasus « 7 



Embryo of Gamasus 8 



Venter of an Eupodid 13 



Linopodes antenmvpes 14 



Rhagidia pallida _ 14 



Ti/dnis, beak and leg I from below 14 



Ventor of a Bdella 15 



Egg of Bdella 15 



Bdella peregrina 15 



Bdella tenella 16 



Mandibles and palpus of Sclrtiti 17 



Cheyletus sp. (Pergande) 17 



Cheyletus pyriformis; beak and jialpus, tip of leg I, and claws of leg II 17 



Cheyletus audax, from below 18 



Ilarpyrhynchus longipilus, female 20 



Harpyrhynchus longipilus, larva 20 



Myobia musculi 20 



Psorergates simplex 20 



Venter of Anystis 21 



Erythraeus spinatus 22 



Gekobia texana 22 



Tetranychus hvmaculatus 23 



Tetranychus, mandibular plate, dorsal and lateral views 24 



Tetranychus, cephalothorax from above 24 



Tetranychus, leg 25 



Tetranychus, genital organs 25 



Three styles of claws of tetravyclms 25 



Tetranychus gloveri, palpus and mandibular plate 25 



Bryobia pratensis 26 



Bryobia pratensis, larva 27 



Stigmtrvsjloridanus; mite, moutli parts, and claws 27 



Tetranychoides calif ornica, and paljius enlarged - 27 



Tenuipalpus californicus 27 



Neophyllobius americanus 28 



Rhyncholophus 29 



Rhyncholophus macidatus 29 



Rhyncholophtis simplex and palpus 30 



XI 



