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Dermanyssidae ■ -~— ---- — - : — — • 2 . 
Derma nyssus gallinae ' - 3 
Dog- 
follicle mite ■ . 10 
tick. See Brown dog tick. 
3ar mite ■ 37 
3nj tetranychus althaeae , See Tetranychus althaeae . 
Epitrimerus vitis - — -- 2 
I^riophyes sheldoni ---. • — .- 3 
Sriophyidne . • , — . 2 
European red mite — : — '• ! __.__.__- T*i, 15, 16,33 
Fleas — . — — 37,^0 
Fowl tick :—__—__ ; ■ _ „_ 2 
Fruit tree red spider — — . ._ ,-. lH~i;6 
Gall mite — :_~ 2 
Gamasidae ■ 3 
Green mite -- • — - . lb.,18 . 
Greenhouse red spider 16,1% 20,26 
Halotydeus destructor- ■■ '<■ 9 
Earn, cheese, or flour mite ]>& 
Hemitarsonemus latus — '■ 12 
Human itch mite -r 11' 
Ixodes — 
holocyclus ' 6 
ricinus 6,8 
Ixodidae h 
Lice . 37,^0 
Mange mite . _ ip ,11, Ui 
Mealybug — — 23 
Mexican bean beetle 23,29 
Kite ?, 3, 11, 12, 13, 15, 17, 19, 20, 22, 32, 33, 3^,36, 37,32,39 
Mushroom mite 3" 
Neo t et ranyc hus buxi 13 
Oak mite- — : = r f 13 
Oligpnychus — 
simplex — 13 
ulmi. See Pa ra tetranychu s pilosus . 
Onion thrips r 21 
Ophionyssus serpent ium . 2 
Ornithodoros — -.•'." 
moubata 2 
tartakovskyi _ ■ .___.,- 2 
