84 INDEX. 
Page. 
"Prootoquie," term used by Lahillefor period, in tick, previous t<> oviposit inn. . 14 
p nit, ri us 1 Ism,, hosl of Ixoda cooh. i 56 
Quail, hosl of .1 gas sancfu ri 42 
Quiscalu8 major macrourus, enemy of cattle tick 37 
Rabbit. See also Lepus callotis, L. pahistris, and /.. sylvaticus. 
bosl of //■' maphysalis leporis-palustris 53-54 
/ - nil, 8 r'irin US 56 
Margaropus annulatus 34 
record as host of cattle tick probably erroneous 39 
Raccoon, bosl of Ixodes cooh i 56 
Rats, enemies i >f Ornithodoros moubata 37 
Rhipicephalinae, structural character and genera 46 
table of genera 40-41 
Rhipicephalus appendiculatus, bibliographic reference 71 
bursa americanus, reported from Jamaica 47 
capensis, bibliographic reference 71 
decoloratus, transmitter of spirillosis in caul 
t r< its',, bibliographic reference 71 
habits and structure distinguishing it from Margaropus 47. 49 
sanguineus (Ann. Rpt. Bur. Animal Industry i. L905, p. 35)= 
Rhipicephalus sp. of present bulletin 48 
in Panama 47 
simus, bibliographic reference 71 
sp., habits and life history 47—49 
in Colorado 73 
on dog 50 
same as R. sanguineus in Ann. Rpt. Bur. Animal Industry f. 
1905, p. 35 48 
undetermined species from Colorado and Porto Rico 47 
Rhynchoprium spinosum — Ornithodoros megnini. nymph 46, 73 
Roebuck, host of Ixodes ricinus 56 
Sarcopsylla penetrans, introduction into South Africa 46 
Screw-worm fly. (See Chrysomyia macellaria.) 
Sheep, host of Dermacentor occidentalis 51 
Ixodes cookei and I. ricinus 56 
Margaropus annulatus 35, 59 
Ornithodoros megnini 45 
Skunk, host of Ixodes cookei 56 
Snake, Ornithodoros turicata in burrow 46 
Soiling system, for eradicating cattle tick. (See Feed-lot system. 
Solenopsis geminata, enemy of cattle tick 36 
Spermophile, host of Ixodes cookei 56 
Spirillosis of fowls, transmission by Argas miniatus 42 
Spirillum (Spirochete) obermeieri, probable cause of human tick fever 45 
Splenetic fever. (See Fever, Texas.) 
Squirrel, host of Amblyomma amenxanurm. ' 59 
Ixoil, s i icin "s 56 
bosl • i / od( s u inus 56 
Steer, used in experiments od cattle tick -'7 
Submergence, in water, effeel "it engorged adult cattle ticks 32-33.39 
incubation of cattle tick 22.3!) 
Sunlight, direct, effeel on adull cattle ticks 32 
Tapir, hosl of Amblyomma multipunctum 58 
