9 



instead of being strongly concave, was convex with the lateral points 

 much less sharp than in furcata. We were able to separate out a 

 series of nine specimens in the Barnes Collection, using this feature in 

 the S 's as the distinguishing character ; of these seven were from 

 X'ictoria. B. C. or its vicinity, one S was from Verdi, Neva- 

 da and one 9 from Plumas Co., Calif. ; there were also five 

 specimens in the American Museum material, all from the Hy. 

 Edwards Collection and bearing the simple label 'California" with the 

 exception of one ? from Summit, Sierra Nevada Mts. The general 

 type of maculation of these specimens agrees so closely with that of 

 furcata that it is very difficult to point to any one distinguishing char- 

 acteristic except that of color; in all the specimens before us the pale 

 areas are more or less strongly sprinkled with green, and at times 

 heavily tinged in the median band with ruddy, some of the specimens 

 approaching much more closely the European sordidata Fabr. than any 

 of our N. American forms of furcata; with regard to the macula- 

 tion the fourth dark band (postmedian) seems broader above the inner 

 margin than is usually found in furcata; it also shows a slight inward 

 angle on vein 3 and above this is less evenly crenulate ; the submarginal 

 band is in general slightly closer to the outer margin than in furcata; 

 these points, however, may not be constant and too great stress cannot 

 be laid on them. We sent specimens of this species to Mr. Swett 

 along with typical furcata (according to genitalia) and asked him to 

 examine Packard's types of quinqucfasciata and viridata in the Cam- 

 bridge Museum and see whether these names might be applicable to this 

 new form ; unfortunately both of Packard's types are 2 's so that it 

 is impossible to determine anything from the genitalia; however. Mr. 

 Swett, after careful comparison, has written us that, although not abso- 

 lutely identical, our species is considerably closer to the types than is 

 typical furcata; he has also sent us a S specimen from Guerneville, 

 Calif., for examination which he considers to be viridata and the Uncus 

 undoubtedly agrees with that of our form ; this would correspond to 

 our own comparisons, made however, at a time when we had not real- 

 ized that there were two closely allied species. Packard's types of 

 both species came from California (possibly the vicinity of San Fran- 

 cisco as they were collected by Mr. Behrens) and until material from 

 this locality is available which can be exactly matched with the types 

 there will always be an element of doubt as to the status of quinquc- 

 fasciata; for the present we think it advisable to associate both the 



