Eiving — Significance of Parasitism in Acarina. 39 



PTERODECTES Robill. 

 p. ortliygometrae (Can.) — Orthygometra pusilla (Pall.). O. porzana 



(L.). 

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

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



Temm. 

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

 P, muticus Banks — Poocsetes granaineus (Gmel.), Sayornis pbcebe 



(Lath.). 

 P. iilo'batus Robin — Anthus trivialis (L.), Alauda arvensis L. 

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



Cyanocorax chrysops (Vieill.). 

 P. paradisiacus Trt. — Paradisea minor G. Shaw, Sericulus melinus 



(Lath.). 

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



Lophornis ornatus (Bodd.) and other Trochilidae. 

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



colius glaucovirens Ell. 

 P. trocMlidarum Trt. — Upon Trochilidae, Chrysolampis mosquitus (L.), 



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

 Cyanolesbia mocoa (Del. & Bourc). 

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



lampis Jugularis (L.). 

 P. selenurus Trt. — Cyanolesbia mocoa (Del. & Bourc), Topaza pella 



(L.). 



PTEROPHAGUS Megll. 

 P. strictus M6gH. — Upon Columbidae. 



Epidermopteae. 

 HETEROPSORUS Trt. & Neum. 



H. pteroptopus Trt. & Neum. — Acrocephalus streperus (Vieill.), Eritha- 



cus cyaneculus (Wolf.), Emberiza cir- 

 lus L., E. schoeniclus (L.). 



PACHYLicHus Can. 



p. crassus Can. — Erithacus phoenicurua (L.), Dendrocopus medlus 

 (L.). 



MicROLicHus Trt. & Neum. 



if. avus (Trt.) — Gallinago major (Gm.), G. nigripennis Bp.. Dendroco- 

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

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



