1889.] A Neiv Cattle-Pest. 585 
scribed under the name of cornicola, as a doubtful synonym of ser- 
rata. Since the pubhcation I have learned that the fly had been 
positively identified as //. serrata for Prof. Lintner by Mr. Ko- 
warz, of Bohemia, whose authority on the subject is the best. 
The fly will thus be known as Hamatobia serrata Rob. Desv., 
and in the vernacular the name used by Mr. Howard, in " Insect 
Life," of Horn-fly, seems the most appropriate. 
So much for a brief history of the actual and probable pest 
in our own country, and this history, brief as it is, seems fuller 
than that of it in its own home, for I can find but very little in 
reference to it. Desvoidy described it in 1830, and Macquart 
gave an equally brief description of it in 1838. Rondani 
separated the species into another genus, which he called 
Lyperosia, in 1856, and Robineau Desvoidy, about the same 
time, gave it the name Priophora. It may be that these names 
will obtain acceptance, one or the other (for they are not synony- 
mous), for these species, but the characters are based upon minute 
differences of the bristle of the antennae or a secondary sexual 
character, and the time is not yet when we may accept them. It 
is much to be desired that the name of a common pest may re- 
main unchanged, but so long as we know so little of its allies it 
is impossible to preclude change in the nomenclature. 
The fly belongs to the family Muscidae, and in the group 
Stomoxyinae, which some excellent entomologists deem equiva- 
lent in rank to the Muscidae (or Muscina^). It will be distin- 
guished from the common cattle-fly by its smaller size, and more 
especially by its long palpi, and has for its immediate allies 
some of the most vexatious of flies indigenous to Europe, Asia, 
Africa, Australia, North and South America. Two of these are 
well-known to all, either by repute or experience, — the cattle-fly 
and the tsetse-fly. Stojnoxys calcitrans was doubtless originally 
European, but its spread has been almost coextensive and co- 
temporaneous with man. In the United States it reaches from 
the Atlantic to the Pacific, a torment to both domestic and wild 
animals, and I have seen specimens from Rio de Janeiro. The 
tsetse-fly, {Glossina, of Africa), of which several species are 
known, has been, perhaps, the most famous oi all for its poison- 
