1911.] Petrunkevitch, Index Catalogue of American Spiders. 747 



Erigonc provocans Camlrridge = Typhochrseatus spetsbergensis Thorell. 

 Erigone purpurea = Ceratinopsis purpurea Keyserling. 

 Erigone purpurescens Keyserling = Ceratinopsis angUcanuiii Heniz. 

 Erigone rostrata = Trachelocamptus rostratus Emerlon. 

 Erigone rostratula = Gongylidiellum rostrfituhnn Keyserling. 

 Erigone rubens = Gonatium rubens Blackicall. 

 Erigone rubieunda = Ceratinopsis rubicunda Keyserling. 

 Erigone semiatra = Mieroneta semiatra Keyserling. 

 Erigone simplex = Diplocephalus simplex Emerlon. 

 Erigone spetsbergensis = Typhochra?stus spetsbergensis Thorell 

 Erigone spinifera = ffidothorax spiniferus Cambridge. 

 Erigone terrestris = (Edothorax terrestris Emerton. 

 Erigone tibialis Marx = Prosopotheca tibialis Emerton. 

 Erigone tibialis Fox = Ceraticelus tibialis Fox. 

 Erigone tricornis = Tigellinus tricornis Emerton. 

 Erigone trilobata = (Edothorax trilobatus Emerton. 

 Erigone truncata = ffidothorax truncatus Emerton. 

 Erigone tumidosa = Ceratinopsis tumidosus Keyserling. 

 Erigone ululabilis = Mieroneta ululabilis Keyserling. 

 Erigone umbratilis = Bathyphantes umbratilis Keyserling. 

 Erigone vaginata = Oreonetides vaginatus Thorell. 

 Erigone vexatrix = Qidothorax vexatrix Camhridqe. 

 Erigone viaria = Mieroneta viaxia Blackicall. 

 Erigone Xanthippe = Ceratinopsis Xanthippe Keyserling. 

 Erigone zonaria = Bathyphantes zonaria Keyserling. 

 Erigone zygia = Bathyphantes zygia Keyserling. 

 Erigonoplus gigas = Caracladus gigas Banks. 

 ERIOPHORA Simon = ARANEUS Clerck. 

 Eripus heterogaster = Epicadus heterogaster Guerin. 

 Eripus quinquegibbosus Cambridge = Epicadus heterogaster Guerin. 

 Eripus spinipes = Epicadus spinipes Blackwall. 

 Eripus trifidus = Epicadinus trifidus Cambridge. 

 Eris aurigera C. Koch = Dendryphantes marginatus Walckeno'V. 

 Eris barbipes = Sassacus barbipes Peckham. 



Eris brendeli Giehel = Attus brendeli Giehel, Zeitschr. Naturwiss., 1SG3, Vol. 

 XXI, p. 324. Hab. — TL S. A.: Illinois. (Identification impossible.) 

 Eris jubata = Beat a jubata C. Koch. 

 Eris illustris = Prostheclina illustris C. Koch. 

 Eris nervosa = Zygoballus nervosus Peckham. 

 Eris octava = Dendryphantes octavus Heniz. 

 Erissus pustulatus Cambridge = Isaloides putus Cambridge. 

 Ero americana = Argyrodes americanus Taczanowski. 

 Ero caudata = Argyrodes caudatus Taczanowski. 

 Ero thoracica Emerton = Ero furcata Villers. 

 Ero variegata C. Koch = Ero furcata Villers. 

 Ervig albolineatus = Diguelia albolineata Cambridge. 

 Ervig propinquus = Diguetia propinqua Cambridge. 

 Escambia alacris = Corythalia alacris Peckham. 

 Escambia conspecta = Corythalia conspecta Peckham. 



