228 



to warrant a separation of the N. American from the European form 

 of which we made several slides. 



Walkerata Pears, described as a separate species (Can. Ent. XLI, 

 119), is without much doubt a form of truncata; we saw the types last 

 year in New York and since then through the kindness of Mr. F. Wat- 

 son of the American Museum of Natural History have received excel- 

 lent photographs of both $ and 2 types; it is a form with the 

 median band dark bluish-gray, more or less suffused with white in 

 central area, and bounded on either side by bands varying from pale 

 yellow to deep orange. We have almost exactly matched the $ type 

 with a specimen from Calgary, Alta. which we figure (PI. XXI, Fig. 

 7) ; we have very similar specimens from Colorado and the vicinity of 

 Lake Tahoe, California as well as from the southern Alaskan Coast 

 (PI. XXI, Fig. 8) ; the form is probably related to schneideri Sanb. 

 from Northern Europe. 



In the White Mts. N. H. (Bretton Woods) Dr. McDunnough 

 took a small series of almost typical truncata in the latter half of July 

 (PI. XXI, Figs. 1, 2) ; ova secured from a 9 hatched in ten days, 

 the larvae fed up until about half-grown and then prepared to hiber- 

 nate ; we were unsuccessful in bringing any to maturity but the larval 

 history is an additional proof, if needed, that we are dealing with trun- 

 cata and not citrata which hibernates in the egg stage. We also figure 

 a specimen of citrata from the same locality for comparison (PI. XXI, 

 Fig. 3). 



Suspectata Moesch. from Labrador will, we believe, prove to be a 

 form or race of truncata judging by the description ; in spite of Moesch- 

 ler's assertion (1884, Verh. Z. B. Ges. Wien, p. 302) that his suspectata 

 is identical with brunneata Pack, we fail to see how this can be possible ; 

 the description of suspectata does not fit in at all with Packard's figure 

 of brunneata, the size alone of the former (35 mm.) emphasizing its 

 distinctness; brunneata will probably prove to be a good species, nearer 

 possibly to kasloata Tayl. than to truncata. 



Judging by the description traversata Kell. (not transversata as 

 listed), described as a Hydriomena, from Petosky, Mich. (Bull. Buff. 

 Soc. V, 45) will fall into this group but without a knowledge of the 

 type it is impossible to definitely place it. 



There is a large race occurring in the Puget Sound and Vancouver 

 Island region which we had thought to be new ; Mr. Swett, however, 

 has identified this for us as mullcolata Hist, and after a study of the 



