205 
G. F. Ferris and F. R. Cole 
0. exilis (Walker) from New Guinea, and that this too is probably the same 
as vicina. 
Our species is certainly very close to 0. turdi (Latreille) (Massonat, 1909) 
from Europe. Certain differences are evident on the basis of Massonat s des¬ 
cription and figures, but it is not at all improbable that these differences might 
disappear upon a comparison of specimens. 
Two specimens from “ California russet-backed thrush,” Hylocichla ustulata, 
without indication of locality, differ somewhat from the typical promiscuct , 
the setae being in general fewer and smaller, approaching more closely turdi , 
but our material is not in the best of condition, and for the present we place 
them provisionally with promiscua. 
REFERENCES. 
Austen. E. E. (1903). Notes on Hippoboscidae (Riptera Pupipara) in the Collection of the 
British Museum. Ann. Mag. Nat. Hist. (7), xn. 255-266. 
Massonat, E. (1909). Contribution a l’lStude des Pupipares. Ann. de V Universite de Lyon , 
N.S. (1), xxviii. 1-356; Pis. 1-7. 
