743 



ORIGINAL DETERMINATION 



CURRENT STATUS 



1731 



Dermacentor venustus 



N 1731 



RML 110674 



(vial 1) 1 cf, 1 ?, 6 N, 12 eggs 

 Dermacentor andersoni 



(vial 

 (vial 

 (vial 

 (vial 

 (vial 



(vial 

 (vial 

 (vial 



2) 

 3) 

 4) 



5) 



6) 1 vial dry nymphal skins 

 Dermacentor andersoni 



4 o- Dermacentor andersoni 

 1 ? Dermacentor andersoni 

 1 ? Dermacentor andersoni 



19 N Dermacentor andersoni 



7) 39 L Dermacentor andersoni 



8) + 2000 L Dermacentor andersoni 



9) 1 vial of eggs Dermacentor 



andersoni 



Horses 



Imported into British Columbia 

 from Yakima, Washington, UoSo 

 America 



V.1912 



Dr. C. Gordon Hewitt, Dominion 

 Entomologist, Central Experiment 

 Farm, Ottawa, Canada 22oVIIol912 



[Used for raising experiments] 

 Ovi position commenced 9, Viol 91 2 



Raised in Cambridge: put in 5 

 tubes in cabinet in "Series." 



(a) eggs (with other tick ova) 



(b) larvae unfed 



(c) larvae gorged 



(d) nymphs unfed 



(e) nymphs empty skins whence 

 adults emerged 



(f) 



(g) 



(h) 



d-'s 



Horses 



Imported into British Columbia from 

 Yakima (46.36 N, 120.31 W), Washington, 

 U.S.A. 



VJ912 



Ur, C. Gordon Hewitt, Dominion Ento- 

 mologist, Central Experiment Farm, 

 Ottawa, Canada 22,VIIJ912 



Of the total cited for vial 1, 2N, 



17 L and 12 eggs are pinned. 



Cited: Nuttall (1915: 425); Hadwen & 



Nuttall (1913: 299) incorrectly stated 



the locality as Washington, D.C; cited 



& figured: Nuttall (1920: 2, pi. II, 



figs. 1, 2); Edwards & Evans (1967: 595) 



?'s unfed 



?'s after ovipositing 



