PROCEEDINGS, 1018 23 



Crokeri Swett has been raised to specific rank. The only locality 

 tiiis species has been recorded from is Victoria, with the exception of a 

 solitary male from Salem, Ore. 



In the long palpi group, the only change affecting our British Col- 

 umbia species is in edenata Swett. This species was described from 

 Eden Valley, Monterey Co., Calif., and although our Vancouver Island 

 form is identical in maculation, it is very much larger, measuring 38 mm. 

 in 1:)0th sexes. 



On account of this large size, Barnes and McDunnough propose 

 the racial name of grandis for our Vancouver Island form. It also differs 

 slightly in colouring, as our local form possesses a greenish tinge, which 

 is lacking in the tyjMcal species. 



In this long palpi group speciosata Pack., and its varieties, occur, 

 and it is interesting to note the totally different shape of the uncus from 

 those we have been discussing. 



There are slight but distinct differences in the uncus of speciosata, 

 and its two forms, taylori and ameliata, especially in the basal portion 

 of the neck. I have a long series of each of the two former, and the 

 differences appear to be constant. 



In conclusion, it may be of interest to mention that out of a grand 

 total of 68 described forms in Boreal America (that is, North of Mexico 

 to the Arctic Circle), twenty or nearly one-third occur in British Col- 

 umbia. Of these 20 forms, no less than 18 occur on Vancouver Island, 

 this Island thus containing more species than any other locality in North 

 America. This is quite an advance on the 1906 B.C. Check List, which 

 contains seven species, and one of these — ruberata — was listed in error. 

 Furthermore, out of the 18 forms occurring on Vancouver Island, it is 

 gratifying to note that eleven of them were described from here, the 

 types being from Victoria (5), Wellington (2), Departure Bay (2), Gold- 

 stream (1), and Duncan (1). 



Author's Note (September, 1919). 



Since the above article was written, another nev.- species of this 

 genus has been described by L. W. Swett under the name of Hydriomena 

 macdonnoughi, vide Can. Ent., Vol. 50, p. 296, Sept. 1918. It was taken 

 at Atlin in June, 1914, and apparently belongs to the ruberata group. 

 It is named after Dr. J. McDunnough. in recognition of his splendid work 

 on this genus. 



In the same article Mr. Swett verifies the conclusion that 1 had 

 arri\ed at in my article in the Proc. B.C. Ent. Socy., No. 10, March, 1917 

 (Author's Note, page 20), that periclata is a form of quinquefasciata 

 Pack, rather than of furcata Thun. Upon the recent receipt of two males 



