276 
Eugenia, 1851-3, the specimens which Thomson described were 
collected on Ross Island, on the coast of China (7), and he 
further stated that a variety was taken at Honolulu. I have 
typical specimens, which I take to be this species, from Cape 
Town, collected by Bridwell, and it is very interesting to note 
that the common house-flies of Hawaii compare more closely 
with these than with specimens of the true domestica. It will 
further be seen that there is some variation in the width of the 
space between the eyes of the males in the Hawaiian flies, just 
as one might expect. Hawaii, being the “melting pot of the 
Pacific,” flies coming from the East and from the West, along 
the lines of commerce, have met and mingled here, with the 
result that our variety of the common house-fly is not typical of 
either species, but rather a hybrid. 
THE LittrLuE HouseE-FLy. 
Fannia canicularis Linn. is another species which was recorded 
from Hawaii,’ two specimens having been sent from that island 
to Dr. Howard in 1901. Yet no further specimens had been 
placed in collections here. During my recent visit to the large 
island (June, 1922) I found that this was the most abundant 
species, literally swarming in the hotel where I stopped in 
Waimea. Hence, it would appear that we overlook the com- 
monest things in our collecting, by taking too much for granted. 

? Proc. Ent. Soe. Wash., IV, p. 490; 1901: 
