Ewing — Significance of Parasitism in Acarina. 39 



PTEEODECTEs Robin. 



p. orthygometrae (Can.) — Orthygometra pusllla (Pall.), O. porzana 



(L.). 

 P. actitidis (Can.) — Totanus hypoleucus (L.), Tringa sp. 

 P. edtoardsi (Trt.) — Acrocephalus arundinaceus (L.), Sylvia galactodes 



Temm. 

 P. rutilus Robin — Chelidonaria urblca (L.) and related species. 

 P. muticus Banks — Poocaetes gramlneus (Gmel,), Sayornis phoebe 



(Lath.), 

 P. hiloMtus Robin — Anthus trivlalls (L.), Alauda arvensis L. 

 P. gracilis Trt. — Ostinops decumanus (Pall.), Xanthura yncas (Bodd.), 



Cyanocorax chrysops (VIeill,). 

 P. paradisiacus Trt. — Paradisea minor G. Shaw, Serlculus mellnus 



(Lath.). 

 P. gracilior Trt. — Topaza pella (L.), Chrysolampis mosqultus (L.), 

 Lophornis ornatus (Bodd.) and other Trochilidae. 

 P. mainati var. aculeata Can. — Eurylaemus ochromelas Raffl., Lampro- 



colius glaucovirens Ell. 

 P. trochilidarum Trt. — Upon Trochilidae, Chrysolampis mosqultus (L.), 

 Topaza pella (L.), Lophornis ornatus (Bodd.), 

 Cyanolesbia mocoa (Del. & Bourc). 

 P. gladiger Trt. — Upon Trochilidae, Chrysolampis mosqultus (L.), Eu- 



lampls Jugularls (L.). 

 P. telenuruB Trt. — Cyanolesbia mocoa (Del. ft Bourc), Topaza pella 

 (L.). 



PTEROPHAGUs Megn. 

 p. strictua M6gn. — Upon Columbldae. 



Epidermopteae. 



HETEROPSORiTs Trt. & Neum. 

 n. pteroptopus Trt ft Neum. — Acrocephalus streperus (VIeill.), Erltha- 



cus cyaneculus (Wolf.), Emberlza clr- 

 lus L., E. schoenlclus (L.). 



PACHYLicHus Can. 

 p. cras$us Can. — Erithacus phoenicurua (L.), Dendrocopus medlus 

 (L.). 



MicROLicHus Trt. & Neum. 

 M. avu8 (Trt.)— Gallinago major (Gm.), G. nigrlpennls Bp., Dendroco- 

 pus medius (L.), Garrulus glandarlus (L.), Eulam- 

 pis holosericeus (L.), Passer domesticus (L.). 



