INDEX. 



Page. 

 Abundance 11 



affinis, Ixodes. (See scapularis.) 



albipictus, Dermacentor 43, 44 



Amblyomma 20, 37 



AMBLYOMMIN-E 20 



Amblyommini 20 



amcricana, Argas. {Seeminiaius.) 

 americanus, Ornithodoros. (H^'n turimtn.) 



americanmn, Amblyomma 37, 40 



angustus, Ixode's 23, 29 



annulatus, Margaropus 36 



arcticus, Ixodes 23 



Argas .^ 14 



Argasid* 14 



bicornis, Ixodes. {See diversifossiis.) 



bifurcatus, Dermacentor 43 



Bouphtlus. (See Margaropus.) 

 borealis, CeralLxodes. {See putus.) 

 bovis, Boophilus. (See annulatus, Marga- 

 ropus. ) 



brevipes, Argas. 15 



brunneus, Ixodes 23, 26 



cajennense, Amblyomma 37, 41 



califoriiicus, Ixodes 23, 24 



canistiga, Ixodes 32 



Ceratixodes ; 20 



chordellis, Hxmaphysalis 33, 34 



cinctus, Ixodes 50, 52 



Classification 12 



concinna, Hxmaphysalis 32, 52 



cookei, Ixodes 23, 28 



coriaceus, Ornithodoros 17, 18 



erenatnm, Ixodes. (See cajcnnense, Ambly- 

 omma.) 

 cruciarius, Ixodes. {See cookei.) 



dentatus, Ixodes 23, 28 



Dermacentor 20, 42 



Dermacentorini 20 



diversifossus, Ixodes 22, 27 



dugesi, Ixodes. (See anmdatus, Margaropus. ) 

 electus, Dermacentor. (See varialnUs.) 



erraiicus, Ixodes 49, 51 



fimbriatus, Ceratixodes. {See putus.) 



frontalis, Ixodes 26, 52 



fuscus, Ixodes 51 



Geographical distribution 10 



HSMAPHYSALINI 20 



H:vma2)hysalis 20, 32 



hexagonus, Ixodes 23, 31 



hirsutus, Ceratixodes. {See putus.) 



Historical 11 



inchoatus, I.rodes 32, 52 



indentatus, Ixodes. (See annulatus, Marga- 

 ropus.) 

 Ixodes 20,22 



IXODIDiE 14, 20 



IXGDIN* 20 



IXODOIDEA 7 



kelloggi, Ixodes. (See brunneus.) 

 leporis-palustris, Hxmaphysalis 33 



Page. 

 Life-history 9 



Iniigisjyinosus, Ixodes. (See cookei.) 



maculatum, Amblyomma 37, 39 



Margaropus 20, 35 



marginatus, var. of parumapertus 46 



marxi, Ixodes 23, 32 



megnini, Ornithodoros 16, 17 



miniatus, A rgas 15 



mixtum, Amblyomma. (See cajennense.) 



nigrolineatus, Dermacentor 43, 48 



nitens, Dermacentor 42, 43, 50 



occidentalis, Dermacentor 43, 47 



orbiculatug, Ixodes. (See americanum, Am- 

 blyomma. ) * 



Ornithodoros 14, 16 



ovatum, Amblyomma. (See maculatum.) 



parumapertus, Dermacentor 43, 45 



parrirostris, Ixodes. (See signatus, Cera- 

 tixodes. ) 

 persicus, Argas. (See miniatus.) 



pratti, Lrodes 23, 27 



punctulatus, Imdes. (See variabilis, Derma- 

 centor. ) 



putus, Ceratixodes 21 



quinquestriatus, Ixodes. (See variabilis, Der- 

 macentor. ) 

 radiatus, Argas. { See miniatus. ) 



rcjiexus, Argas 14,16 



reticulatus, Dermacentor 42, 52 



Rhipicephai.ini 20 



Rhipicephalus 20, 34 



ricinus, Ixodes 22, 23, 24 



robertsoni, Ixodes. (See variabilis, Derma- 

 centor. ) 

 rostralis, (lonixodes. (See' leporis-palustris, 



Hxmaphysalis. ) 

 rubripes, Amblyomma. (See 7naculatum.) 

 sanchezi, Argas. (See miniatus.) 



sanguineus, Rhipicephalus 34 



savignyi, Ornithodoros 16 



scapularis, Ixodes 23, 25 



scnlptus, Ixodes .^ 23, 30 



sign(dus, Ceratixodes 21 



spinosum, Rhynchoprion. (See megnini, Or- 

 nithodoros.) 



Structure 7 



talaje, Ornithodoros 17, 19 



tenellum, Amblyomma. (See maculatum.) 



texanus, Rhipicephalus 34 



tigrinuiu, Amblyomma. (See maculatum.) 

 triste, Amblyomma. (See maculatum.) 



tuberculatum, Amblyomma 37, 38 



turicata, Orn ithodoros 17, 18 



unipunctuta, Amblyomma. (See america- 

 num.) 

 urisR, Ixodes. (See putus, Ceratixodes.) 



variabilis. Dermacentor 43, 49 



variegafus. (See albipictus, Dermacentor.) 



venustus, 'Dermacentor 43, 46 



u'inthemi, Margaropus 36 



61 



36657— No. 15—08- 



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