126 Proceedings of Indiana Academy of Science. 
Physostonum 
angulatum (Kell.) Tyrannus tyrannus —Kingbird 
Physostomum diffusum Poecetes grammineus = —FEeaster Vesper spar- 
(Kell.) row, N. H. 
Menoponincertum — Galeoscoptes —Catbird 
z earolinesis 
This list of species of parasites as related to the hosts upon which they 
were found is a new one in distribution. Many species (marked V.H.—New 
Host) here noted were not observed upon these same hosts by other obsery- 
ers. It will be noticed upon comparison with Kellogg’s list that generally 
they are the same genera of birds but a different species. 
Docophorus communis is a widely distributed species. Besides those hosts 
indicated by Kellogg and others, I have found it on Cyanocitta cristata. 
Nirmus vulgatus is recorded for Merula migratoria and for a number of 
species of western Pipilo. I have found it in addition on Passer domesticus 
and Pipilo erythropthalmus. Colpocephalum chrysophaeum, I found on 
Toxostoma rufum and Quiscalus quiscalus, whereas Kellogg observed it 
upon Melosphiza fascinata samuelis in California. Physostomum diffusum, 
I found on Poecetes grammineus and Kellogg noted it on Zonotrichia coro- 
nata, a related species. Lastly, Menopon incertum was found on Galeos- 
coptes carolinensis and other observers found it on the Gold Finch and the 
Russet-backed Thrush (Spinus tristis and Turdus ustulatus). 
This distribution indicates clearly that even though a certain species 
of louse is observed on a host different than that of another observer, it is 
a host very closely related. Sometimes there are exceptions and for these 
Kellog has no other explanation than that of migration from one bird to 
another when in close quarters, in roosting on trees during migration of 
the birds, or huddling together of certain water birds on floating weeds 
and wreckage at sea. One interesting fact remains, that closely related 
genera of parasites infest closely related genera of hosts. 
BIBLIOGRAPILY, 
Kellogg, Vernon L.—New Mallophaga I—Proc. Cal Academy of Sciences—— 
1896. 
Kellogg, Vernon L.—New Mallophaga II—Proc. Cal. Academy of Sciences— 
: 1896. 
Kellogg, Vernon L.—New Mallophaga III—Proc. Cal. Academy of Sciences— 
1899. 
Kellogg, Vernon L—A List of Biting Lice(Mallophaga) from Birds and 
Mammals of North America. Proc. United States Nat. Mus. 
Vol. XXII—1899. 
Kellogg, Vernon L.—Distribution and Species-forming of Ectoparasites. 
Am. Naturalist Vol. XLVII—1913. 
Osborn, Herbert—Insects Affecting Domestic Animals U. S. Dept. Agr. 
Bull. No. 5—1896. 
