236 LIFE HISTORY OF NORTH AMERICAN TICKS. 
Page. 
Rhipicephalus sanguineus, longevity of stages, maximum...................... 71 
mating habita:.....--..535 cos SUN Se eee ee 31 
molting habitsssd s:ausng to IO 2. dda es 75 
nymph, deserip tives. osesnhe ade th oo. Leo 103 
life history: Akt sue, kee ovarian 107-108 
parasite of dogs: .. fae beraceis.\ ge)... spares, 43 
periods in life history, maximum and minimum..... 70 
texanus=Rhipicephalus sanguineus............+2-0-l 2225202 een eee 102 
Robin, host of Hamaphysalis leporis-palustris..........-..---.---------------- 90 
foost; tick-free, construction. «5.05.2... 5-2.02.cencdcec eeee ee eee 61 
Rotation (see also Starvation). 
system against’ Pacifie Coast tick 2/55... Gicq0s sseeh ee eae ee ee 190 
Hekes 02) so een nae ak eel Seine ee 44 
impractical against Cayenne, tick... +--.-1\.,.uleebsed- sane 158 
Lone Star tick: . 2. 29h<A-2: Soaess: eee 151 
Sciurus hudsonicus richardsoni, host of Dermacentor venustus.........----------- 166 
Trodes bingtccos. toes hee 82 
Screw-worm fly (see also Chrysomyia macellaria). 
ovipositing in wounds caused by Dermacentor nitens......... 203, 204 
Seutum.of ticks, ‘definition: !: 2-22.22. = 2 at ee, Se edie ae 16 
Sheep, host of Amblyomma americanum: 2.45 ee ey Eee ee se 143 
tuberculatuines: 2 ee a ae ee 136, 140 
Dermacentor occulentalise 20.0302 ss 32 ee ee eet oe 182 
VENUSUUS 5550 3cce me teens ie eee ee ee 166 
Prodes scapularis: 2s. 2225 Sitnst ts tees Seek: Soe 77, 81 
Margaropus anniwlatust sa. dsn04s ep seeteece saath: = 2225 eee 112 
pQusiranseeie be wshvessalsocasseees 117, 118 
Ornithodores megnitit 72.43 522.5¢5neuled Bebe ee 62 
Rhipicephalus sanguineis:.=-. 22. ied oA etl)... eee ee 
Skunk, host of Amblyomma amerveanwimn.-- cx focc00 62,4 dee ase Ieee ese nee 143 
Dermacentor vartabilts: 936 6be Jos a0. bata de keane eee 191 
Trodes PNG Ve we ose ade ye beens chews sedes = 52 ace eee 82, 83 
molenapsis geminata, enemy of ticks... - pn ese Sib <4 -ee 2 222 3 agee ae ee 42 
Sparrow, host of Hemaphysalis leporis-palustris..........----+---+--+---+++++-- 90 
Sparrows, probable enemies of Hemaphysalis leporis-palustris..........-..-.--- 96 
Spermophile, host of Lrodesbingt. onic setor =» As apd ety e ce wc eee 83 
Spirocheta anserinum, parasite of geese, transmission by Argas miniatus....... 46 
gallinarum, parasite of chickens, transmission by Argas miniatus.. . 46 
parasites of ticks..2% .2 2225 5. 5oS GaSe oe ha ce so tes ee 44 
theileri, causing disease of cattle in South Africa, transmission by 
Margaro pus deegloratst .)-. bastosis ew 54 ok a eee ade oae 220 111 
Spirochetosis of fowls, transmission by Argas miniatus................-.--. 45-46, 60 
ROLORUSEES Bess.c2 25253 ol 45-46 
Spraying against: brown doe ticles. 325... «5%. 2eneuee eee as 2 ee lil 
ticks. - : 202332 s eee: facia pees 3 So ee tt 
Squirrel, fox, host of Dermacentor parumapertus marginatus.......--.------- 159, 162 
UOT VADs ee SB Be as 3 ie} Se 191 
VENUSHUS) 25-9 b eeRee ere so. > See 175, 176 
ground (see also Citeilus columbianus). 
host of Dermacentor venustus...........-.---------- 171, 172, 175, 176 
host of Amblyomma americaniwmn..ox «<a aes Jase ne Sek eee 143 
Dermacentor voridbiliexs:25 33... <3 Gh aes kee ee 195 
VENUSUUB c.nd = 3h «<BR ese ae 173, 175, 176 
