78 CHAPTER I 



ciDARiA (epirrhoe) ALTERNATA O. F. MuIl. 



Icel., Eur. (generally), Cauc, N Asia Alas.-Nov. Scot., Labr., Nfld., S to 

 E to kamch. & Kuril. Distr. of Col. 



CIDARIA (dysstroma) citrata L. (tmmanata Haw.) 



Icel., N & C Eur., N & C Asia E to Alas. & Brit. Col.-Nov. Scot., Labr., 



Kamch. & Kuril. Nfld., S to New York. 



CIDARIA (xANTHOROE) FERRUGATA CI. 



Eur. (generally), N & C Asia E to Brit. Col.-Nov. Scot, Nfld., S to Penns. 



Kamch. 



CIDARIA (hydriomena) furcata Thunb. (sordidata F.) 



Icel., N & C Eur., N & C Asia E to Pacif. coast-Nov. Scot., Labr., N U.S.A. 



China, Japan & Kamch. 



CIDARIA (eULYPE, RHEUMAPTERA) HASTATA L. 



Icel., N & C Eur., N & C Asia E to Alas.-Nov. Scot., Labr., Nfld., S to 



China & Kamch. Penns. 



CIDARIA (tHERA) JUNIPERATA L. 



Brit. Isl., Eur. (widely). f Maine, Ontar., Nov. Scot. 



CIDARIA (SPARGANIA, XANTHOROE) LUCTUATA Schiff. 



/. typ. sbsp. obductata Moeschl. 



N & C Eur., N & C Asia E to Kamch. Pacif. coast-Labr., Nfld., S to N. Carol. 



CIDARIA (xanthoroe) munitata Hbn. 



Icel., Faeroes, Eur. (boreoalpine), Sib. Pacif. coast-Nov. Scot., Nfld. 

 E to Amur & Kamch. 



CIDARIA (pERCNOPTILOTA) OBSTIPATA F. 



Almost cosmopolitan. 



Eur. (except the north), Asia (widely). Pacif. coast-Nov. Scot., Nfld., S to the 

 Afr. Gulf of Mexico. S. Amer. 



CIDARIA (dASYURIS) POLATA Dup. 



N Eur., W & NE Sib. to Kamch. Alas.-Labr., Baffin & Ellesm. Isl., also 



in Color.; Greenl. 



