C 16 Brirish CoLtumBra. 1924 

British CoLuMBiA INSECTS NEW TO SCIENCE. 

The number of new insects described from British Columbia material as new to science 
during the year amount to forty-two species. They are divided between the following four 
orders: Lepidoptera, 16; Hymenoptera, 1; Diptera, 24; and Plecoptera, 1. 
LEPIDOPTERA. 
The sixteen species of Lepidoptera are distributed amongst the different families as follows: 
Lycenidw, 2; Sphingidse, 1; Noctuide, 3; Geometridz, 1; Gelechide, 1; Olethreutide, 7; and 
Tortricide, 1. 
Lycanida. 
Plebius sepiolus insulanus Blackmore. Described (Can. Ent., Vol. 55, page 98, April, 1923) 
from twenty specimens taken by the writer at Victoria, B.C., and Goldstream, B.C. This new 
- race differs from typical s@pivlus in the much brighter blue of the male on the upper side and 
on the under-side by the clear bluish-white of the ground colour instead of greyish-white, as 
in the typical form. In the female the upper side of insulanus is an even dark brown with a 
few scattered blue scales basally, while typical s@piolus is heavily shot with blue on both wings. 
Typical swpiolus occurs at Atlin, B.C. 
Plebius icarioides montis Blackmore. Described (ibidem, page 99) from eight specimens. 
Holotype, allotype, and four paratypes taken on Mount McLean, near Lillooet, B.C., by A. W. 
Hanham; one paratype from Mount Cheam, near Agassiz, B.C.; and one from Hope Mountains, 
B.C. (R. V. Harvey). 
We now have three races of this Californian species in British Columbia—namely, pembina 
Edw., blackmorei B. & McD., and montis Blackmore. In the males montis differs from pembina 
in the much lighter shade of violaceous blue and in the narrower black border; from blackmorei 
by the totally different shade of blue, the latter being of a peculiar silvery blue; on the under- 
side it differs from pembina in the much lighter ground colour and in the lighter spotting of 
the fore wings, which, however, are much heavier than they are in blackmorei. 
Since the above description was published I have seen three specimens of montis taken 
this year on a mountain near Lytton, B.C. It is evidently a high-altitude form. 
These three races of icarioides Bdy. will now stand in our list as follows :— 
Plebeius icarioides race pembina Edw. Southern British Columbia. 
Plebeius icarioides race blackmorei B. & McD. Vancouver Island. 
Plebeius icarioides race montis Blackm, Mountains of British Columbia. 
Sphingide. 
Sphinx mordecai McDunneugh. Described (ibidem, page 148, June, 1923) from eleven speci- 
mens taken at Penticton, B.C. (W. B. Anderson), Wellington (G. W. Taylor), Vancouver (Living- 
ston), Vernon (E. P. Venables), and Peachland (J. B. Wallis). 
This is the species which has been known for so many years as Sphinx vancowverensis Uy. 
Edw. According to Dr. McDunnough’s article, I understand that typical vancouverensis is the 
same insect that we have latterly been calling perelegans and which has been formerly recorded 
from various points in the Interior as drupiferarum (vide “ The Sphingidée of British Columbia,” 
Blackmore, Pro. B.C. Ent. Soc., page 26, Feb., 1921). 
Pereleganus was described from “ Big Trees, Calif.,” by Hy. Edw. in Pro. Cal. Acad. Sci., 
Vol. V., page 109, 1874, and vancouverensis was described on page 111 of the same number froin 
a single specimen taken by Dr. Bremner at Esquimalt, near Victoria, B.C. Dr. McDunnough is 
of the opinion that these two names may represent one species, but for the present proposes 
that the name vancouverensis be used in a racial sense. 
This species is larger and darker than mordecai and presents other minor differences which 
renders separation easy. 
In future our two species of this genus will stand as follows :— 
Sphing perelegans Hy. Edw. 
race vancouverensis Hy. Edw. Vancouver Island; Southern British Columbia. 
Sphina mordecai McD. Generally distributed throughout the Province. 
