XIV, 1 Cockerell: Social Bees of the Philippines 81 
Hair of head nearly all black, of thorax above black, but on pleura fulvous ; 
abdomen with first two segments yellow-haired, the others with black; 
wings fuliginous irisanensis Cockerell. 
Bombus mearnsi Ashmead. 
Bombus mearnsi Ashmead, Proc. U. S. Nat. Mus. (1905), 28, 959; 
Cockerell, Ann. & Mag. Nat. Hist. (1905), VII, 16, 393. 
Mindanao, Mount Apo, 6,000 feet (E. A. Mearns). Type 
in United States National Museum. 
Bombus irisanensis Cockerell. 
Bombus irisanensis Cockerell, Ann. & Mag. Nat. Hist. (1910), 
VIII, 5, 416. 
Luzon, Benguet, Irisan (collector unknown). Type in Brit- 
ish Museum. Structurally resembles B. sumatrensis CklL, from 
Sumatra, but the colors are quite different. Bombus is known 
from Java (B. rufipes Lep.), Sumatra {B. senex Snell., B. rufipes 
melanopoda CklL, and B. sumatrensis Ckll.) , and the Philippines ; 
but not yet from Borneo. 
