74 Arachnida für 1909. 



bipilis Ewing (4) — lacustris Lebensweise Ludwig — horassus n. sp. Deutsch- 

 land Sellnick. 



Nothridae Ewing (3). 



Nothrus quadripilus n. sp. Missouri Ewing (2). 



Oribata quadricuspidafa, nigra, macroptera, rugosala, minuta, latincisa, helvina 

 enodis, alles nn. spp. aus Illinois Ewing (2) — artilamellata n. sp. Illinois, 

 arborea, virginica, longa n. sp. Illinois, illinoisensis n. sp. Illinois, banksi 

 n. sp. Illinois Ewing (4) — canadensis, perolata und neosota nn. spp., Canada 

 Banks {%) — ohlonga n. sp. Missouri Ewing (6) — laminata., figurata, sub- 

 aquila, clavata nn. spp. Illinois Ewing (5) — genus beschrieben, emarginata, 

 robusta Ewing (4) — octopunctata n. sp. Illinois, spinogenuala n. sp. ebenda, 

 unimaculta, turgida, minuscula, fuscipes 1. c. 



Oribatella magniseta n. sp. Illinois Ewing (2) — formosa n. sp. Canada Banks (11) 

 magnilamdlata n. sp. Illinois Ewing (5) — genus beschrieben, quadridentata, 

 ovalis Ewing (4). 



Oribatoidea, Klassifikation Ewing (2). 



Oribatidae Ewing (2). 



Pelops terminalis n. sp. Canada Banks (2) — latipilosus n. sp. Illinois Ewing (5) 



— laticuspidatns n. sp. u. bifurcatus n. sp., beide aus Illinois Ewing (2). 

 Phthiracartis fulvus n. sp. Illinois Ewing (2). — flagdliformis, americamis nn. spp. 



Illinois, genus beschrieben Ewing (4). 

 Tegeocranus beschrieben, velatus, lamdlattts Ewing (4) — vdatus Ewing (1) 

 Zdorchestes micronychus Ewing (1). 



Gamasidae. 

 Cdaenopsis pedalis u. lahis nn. spp. Canada Banks (2). 

 Cillibano transversälis n. sp. im Nest von Messor excursionis, Transkaspien Kara- 



waew. 

 Dinychus ovatus n. sp. Illinois Ewing (6). 

 Gamasdlus schmitzi Berlese n. sp. Maastricht Schmitz. 

 Oamasus posticatus u. attenuipes nn. spp. Canada Banks (2) — oblongus, uni- 



comutus, magnicornutus nn. spp. Illinois Ewing (6) — coleoptrarum Shipley (1). 

 Hyletastes missouriensis n. sp. Missouri u. Illinois Ewing (6). 

 Ladaps muUispinosus, pedalis, propheticus u. longiseta nn. spp. Canada Banks (2) 



— margiruxtus Dahl (3) — magnichela, mandibularis, flavus nn. spp. Illinois 

 Ewing (6) — intermedius im Nest Yon Messor excursionis, ahngeri im Nest von 

 Plagiolepis pygmaea nn. spp. Transkaspien HarawaJ'ew — echidninus Miller. 



Liponyssus canadensis n. sp. Canada Banks (2). 



Myrmocercon ovatum n. sp. im Nest von Tapinoma erraticum nigerrimum, Trans- 

 kaspien Karawajew. 

 Sejus macropilis n. sp. Canada Banks (2) — pomi n. sp. New York Parrott. 

 Uropoda cribraria, folsomi, illinoisensis, fusca, pallida nn. spp. Illinois Ewing (6) 



— 2 nn. spp. Newell. 



Uroseius badius n. sp. Illinois Ewing (6) 



Ixodidae und Argasidae. 



Ixodiden und Argasiden: ökonomische Bedeutimg in Jamaica Newstead, 

 Spirochaetose Brumpt, Übertragung von Spirillen und Piroplasmen Tbeiller, 



