Ewing — Significance of Parasitism in Acarina. 33 



p. venustiisimus Trt. — Conurus canlcularls (L.), and other species of 



Conurus. 

 P. aguatarolae (Can.) — Charadrlus squatarola (L.), C. pluvlalls L, 

 P. charadrii (Can.)— Charadrlus hlatlcula L., C. alexandrlnus L., C. 

 curonlcus Gm., Totanus hypoleucus (L.), and 

 other marsh birds. 

 P. obtnsm Robin — Caccabls rufa (L.), C. saxatlUs (Meyer), Perdix 



species. 

 P. ornatus M^gn. & Trt. — Upon parrots. 

 P. ardeae (Can.) — Botaurus stellarls (L.). Other species of fam. Ardel- 



dae. 

 P. gracilis Trt. — Megapodlus forstenl Temm., M. freyclnetl Temm., Aepy- 



podius bruljnl (Oust.). 



P. delihatus Robin — Corvus corone L., C. comix L., C. corax L., C. frugl- 



legus L., C. scapulatus Baud., Corvultur albl- 



collls (Lath.). Other related species of Corvl- 



dae, and species in Vulturldae. 



P. musophagi Trt. — Schlzoris africana (Lath.). Tauracus buffonl 



(Vlelll.). 

 P. uncinatus M6gn. — Steganura paradlsea (L.). Other FrlngllUdae. 

 P. nisi (Can.) — Acclplter nisus (L.), Clrcaetus galllcus (Gm.), Buteo 

 buteo (L.), Pernls aplvorus (L.), Circus pygarua 

 (L.). 

 P. intermedins M6gn. & Trt. — Upon diurnal birds of prey. 

 P. Mcaudatus (Gerv.) — Struthlo camelus L., Rhea amerlcana (L,). 

 P. cuculi M6gn. & Trt. — Cuculus canorus L., and upon related genera ia 



Europe and America. 

 P. hiemarginatus M§gn. ft Trt. — Caplto auratus Dumont, and on other 



species of Capltonldae, 

 P. rhamphastinus M6gn. & Trt. — Pteroglossus aracarl (L.), Rhamphas- 



tus dlcolorus L. Other species of 

 Rhamphastldae. 

 P. circiniger M6gn. & Trt. — Rhytldoceros pUcatus (Forst.), Cranorrhl- 



nus leucocephalus (Vlelll.). Other spe- 

 cies of Bucerotldae. 

 P. attermatus M6gn. & Trt. — On species of Bucerotldae. 

 P. ninnii (Can.) — Numenlus arquatus (L.), N. tenulrostrls Vlelll. 

 P. limosae (Buchh.) — ^^Species of Llmosa, Totanus fuscus (L.). 

 P. limosae var. selenura M6gn. & Trt. — Symphemla semlpalmata (Gm.), 



Llmosa lapponlca (L.). 

 P. totani (Can.)— Totanus calldris (L.), T. pugnax (L.), Trlnga alplna 



L. 

 P. proctogamus Trt. — Fullca atra L., Porphyrlo caeruleus (Vand.). 

 P. huchholzi (Can.)— Llmosa llmosa (L.), Charadrlus squatarola (L.). 

 P. buchholzi var. hastigera M6gn. & Trt. — Trlnga alplna L., Mlcrosar- 



cops cinereus (Blyth). 



