430 



INDEX, 



Phyllerium alnigenum 



— axillare . 



— juglandis . 



— liliaceum 



— vitis . 

 Phytopti on alder 



— on beech . 



— on elm . 



— on hornbeam 



— on pear tree 



— on Scotch fir 



— on walnut 



— on willow 367, 

 Phytoptidse . 

 Phytoptus aceris 



— attenuatus . 



— on Bromus 



— carpini 



— coryli 



— myriadeum 



— on maple 



— on mulberry 



— on salvia 



— on strawberry 



— persic£e . 



— pruni . 



— pyi'i '• 



— ribis . 



— salicis 

 ■ — taxi . 



— tilise 



— tiliarius 



— vitis 

 Physogaster larvarum 

 Pimelonyssus . 



— biscutellus . 

 Piona 



Podura aquatica . 

 Poduridse . 

 Polydesmus . 



• — complanatus 



— dorsalis 

 Pond-water mites 



339, 



1 T >7 



332, 





PAGE 



. . 366 



. 371 



. . 370 



. 356 



. . 363 



363, 364 



. • 371 



. 365 



. . 366 



. 362 



. . 372 



. 370 



369, 370 



227, 331 



• 356 





359 





373 





367 





354 





357 





373 





364 





373 





373 





354 





360 





358 



343, 355 



339, 361 



• • 354 



339, 356 



. . 356 



• 343 



. . 290 



. 172 



• . 174 



. 156 



. . 412 



. 412 



. . 19 



. 20 



. . 20 j 





150 1 



Pontarachna punctulum 

 Porcellio scaber 

 Proctophyllodes . 

 Pseudo scorpiones 

 Psoroptes 



— equi 

 Pterodectes . 

 Pterolichus . . • 

 Pteronyssus . 

 Pteroptidae 



Pteroptus vespertilionis 

 Ptilopteridse 



Raphignathus . 



— ruber 



— ruberrimus . 

 Rhagidia gelida 

 Rhipicephalus 



— senegalensis 

 Rhizoglyphus 



— echinopus 



— feculae 



— mycophagus 



— phylloxerse 



— robinii . 



— rostroserratus 

 Rhyncholophus 



— cinereus 



— major 



— phalangioides 

 Rhynchoprion columbae 

 River-water mites 

 Roestelia cancellata 



— lacerata 



Salticid^ 

 Salticus cupreus . 



— fonnicarius 



— obscurus . 



— scenicus . 

 S arcodermatodectes 



— caprese . 

 Sarconyssus 



