————e ee ae So ee a = I ia a Sea a Rta Nine em cya 
6 LIFE HISTORY OF NORTH AMERICAN TICKS. 
Development of the Ixodide—Continued. Page. 
Genus Ixodes—Continued. iti’ 
The rotund tick, dzodes king? Bishopp-2- 42204 8) seas 2 ee ee ee 82 
Descriptive. satis abe Syste oc See ne 82 
Host:relationship,..): 2 cceqsdes <e Gee pee ele Oe ee 82 
Geographreal distrib wtiome.s 29.7) at eee ee ie ee eee 83 
Eafe history eos Pos Che Sava rae oe onto ae eC GI ie gee a ae 83 
Lite Cy Cle zo. oes oo PSs eee ee ea 88 
Economic importance: 22.602 24 Ub daes Jaa aye ay oe ee 88 
Natural. controle 33.50.2355 2 aba ee ee eee alee eee 88 
Genus. Heemaphyaalise 2235 sccccec cau 5 «tee Ree eee ee a eee ees 89 
The rabbit tick, Hemaphysalis leporis-palustris Packard.............. 89 
DOSCTIPUHVCs 2.ahce ssanak eee s tesa ee ee 89 
Hostrelationships... es285k.%> sephegi ie See Tere ee ae ee 90 
Geographical distributions. 22.252 24. 5) tes eae ee 90 
Ethe Mistory 2c52 oji< aceisie ne eee Stee ee 90 . 
Tater ce yele ss Cou. ct cee Ose te ae eres ae 2 CaN ete ee 95 
Hconomic importance: 0322.23.48 cee Sao ee ee 96 
Natural. control: . 2 cc. 2. 5s So a ee ee 96 
The bird tick, Hemaphysalis chordeilis Packard.................-- eS Tae 97 
Descriptive. oo. .2o cle - Oo has ae Oe ee ee ee ee 97 
Host relationship... 2... 222 s03.02t eee ee a ee ee 97 
Geopraphical distribution: 222252522 oes eae eee 98 
Tite history... s2 i) ooo SEAS Cees Ba a ee 98 
Life cycle: s.. 352.2002 22r ese ee ee eee 101 
Economic importances..\a.252 2 = 254d 22524 fy Ss) eee eee 101 
Natural controls.....2082 2 Seer ee ee ee eee 102 
Artificial comtroly'¢.4 4.4: S36 5425.9 Sch ee ee ee 102 
Genus Rhipicephalus....:.25.9-22es5auc0 Gas ok ee eee eee 102 
The brown dog tick, Rhipicephalus sanguineus (Latreille) (teranus 
Banks). secusees bec Soe bey eee Oe ee ee eee ee 102 
Descripves. <5 eeee ace soe ee SEs ee ee ee eae 103 
Host relationships... sce es 5.2 22 se oe eee eee eee 103 
Georraphical distabutioni. 24.45.22 oo ee ae eee 104 
Wate history: 5.2 yee ns 0 es eee ee a ne 105 
Dafoe cyeleceo. «bee si 0s SNS Rs ene ray in nee ae 110 
Beonomic importamee. 50 042 oo eee eke te Men nl ye oe 110 
Natunaleontrolecsecc a: fe cute is Sas a het a een en eae 110 
Antiietal control: 2. 5 lee coe Jabs bee & eee age re ee ea 111 
Genus Marearopus ®. 22) bo 2 cee ee. cols oe rere ee ee een ene EE 
The North American cattle tick, Margaropus annulatus (Say). .....-- 11 
Deseriptives: ..2cck oes Boe en ee eee 111 
Host relationship’. :' 2. ee ee ee eae 2 
Georeraphical distributions: -2225-222--5 252 satiate tary Bl fo on MSN 112 
Life historys22 24 oe ee ea ee 112 
Life cycles.) sc 4 oe SC ak Ee reece 116 
Economic importance, natural control, and artificial control...... 117 
The Australian cattle tick, Margaropus annulatus australis (Fuller)... 117 
Deseriptives2.<.c..- ch Set Skis toPod. ho. Deg) eee ea 117 
Host relationship: <5 5-06 aces oo ee ee eee 117 
Geographical: distribution:-.. 22.55... 2 eee ts See ee 118 
Life history. 20:0. 0.55249) 32) bin ae ee a el Pe eee) <2 118 
Life cy Cleec 2.2528 oh 2 8 a ee ee ee oe 122 
Biconomic importance jo.) oe eee eee oe 122 
Natural control 2< =2 - 25.22 She eS: oe ee ee 122 
Artificial control 3. c.22.5.0. ae ee ee ee eee eee 123 
