CONArE NGL Sy, 
CONCERNING THE NORTH AMERICAN FEVER TICK. 
Page 
UPCINET ORCUTT oe ee Pho ya eae EAS 9 
Poser occasioned: Dy. Une, Gapule Weekes 2. oe Ue ee oes ee og eee ee 11 
ine eshisiory, Obdeks wm generals. )-2-es22 252. 2222 ss de aoe. t 2-2 22.4 12 
The life history of the cattle tick... .-.-. og Sy I IE aR OE se 13 
Rested previous Low POSItOMe 2 0 bac ks Gee be es oe an ihe Pascale 14 
SSL LINC TNON 02) Los Lae SRE EC AE onl ae ae ae LE 14 
SEES (SES a 2 che I ae yah tg at Sd ee et ee 15 
TC Ufo GLO Mee rree er tae toe eee ee ane tend, See sche ee cate Saas M7 
Relation: of temperature to imcubabion...:..2222..:..-22----+---2.-: 19 
Biecv.ot heatand.coldsonveresss 22220 F552 04. .o\ oe oae cee Shae 21 
Sipmercence of eges) iawaler..- 2 sc. 222 oo... o2 oto 2 oso ads sos ons 22 
Percentageor eres banehines 2.2222 es So on eee Sea cle 23 
Mermabnr Nea -llekr same ass) ens she aah ore es se BSG as eR tne 23 
ROU paeAsiules OMude mare ey a me sawn rote oC Lae we oak adie. Sats 23 
ee Or WalOrOMm need UbCkS: ear se See SA es ie bak 2 oe: ae 24 
Gn evita OUSCER LICKS). pices. J Suse kee asian Sees oe ha 25 
PST RESUS OVS a Leek NL SL, Me am A RA a ea pee ere 27 
De alovmment On NOS asa. o. aees Ole ee AI Sy tothe wa CES Sah 8 a als 28 
oho TDSLLIS EIRP Sap LS aT en ne eee Ge ee ere en 30 
Effect of continuous cold and heat on engorged females...........------- 31 
BiteePorndimeehsUnMont, Ol-AC UGS S. 05228 s 6 ee er oe Falak a a clea slate a2 
Effect of submergence in water on engorged adult ticks. ......-..----.--- 32 
Hihres pune isi MOS yor see od kee et Se tee els ae ow 33 
Hsiccomm ere ergs ee SEP eps eee cee ay ee Piacoa eLearn 33 
IGHtenelamonn ar the eattle tie: wie "0 nee) oe ec Sees kee oboe 34 
Relation between ration and tick infestation.............-....-------------- 35 
OHM ROt aC kee amaiti< 9b Gum e eee a rar eas tee Lal OEE Ye! ce Nero eae 36 
The practical application of the information recorded in this bulletin... ...--. Mijn MO 
NOTES ON VARIOUS SPECIES OF TICKS FOUND IN THE UNITED STATES. 
ie anneaLion: sau IU OL tikes a5 eevee coe ee So ae eS Sees eee wee wee 40 
Key to families, subfamilies, and North American genera of ticks 
(Ixodoidea).. - - - bg Datel eG ae a ee Ge ee a a ge El ae oe 40 
IS Arnal Stu ge Feyd ee SM oe Oe Ami OR ee ee ee eee ee 41 
CSTETS LATCH ays 2 a pa ad neal alk ice) Og SO ER Rees ee Ee 42 
Genus Ornienae OfOsuee ei es SG eo oe we Shae ewe as ae Be eae 45 
SST ISS 2 alt A gel ge 46 
Subiamullyenonipicepnalitce:. 22.422. 8.2) 2lne Sse 32 ce See eS = 47 
USrne) MTES al no] TIO, OST GI Ls FS i oR ee eR eR IE he 47 
GenignpNanmaTO mus aa ten eee a els eA ne se oe Ae ee ee 49 
Ce TPCT AC CMLBOE yo aye es Mal 2 oc A a aie bd SN aS ye ogee 49 
Gonnsrlcemap iy Ralint cose 048 ts naa ra ns ees y eee cae 52 
SHU Saeraren Aya oC ees SS i a ge ee er aM 54 
(GReTET SCAU ch) haa So ee ey ry ar ee oe Se ee 54 
Gemuse Nam phy OMAeyes yee sae eee ass 2 ra)2 Bala = Salsa sl acale Sierinr whe Eee 58 
Mera ini seo G asec et fae ctl 8 Sk 533) bes ead - seins 64 
TEL RpMROIN ere, Seas Tee er eS Re Pen SSE (banal eS oie eo cle aladia a eee iif 
