1914] Webster—Natural Enemies of Simulium 97 
With reference to the discussion of Simuliwm pecuarum Riley, 
pp. 21-24 of Mr. Malloch’s paper, and the note attached thereto, 
it may be stated that both males and oviparous females occurred 
in abundance and were sent to Washington from Somerset Land- 
ing, La., during April, 1886, and also the spring of both 1887 and 
1888. Asa matter of fact, the egg-laying female and the male do 
not usually travel far from the localities where the species breeds, 
the males apparently never following the biting, sterile females. 
The oviparous females were found to each contain 500 to 750 eggs. 
Oviposition was observed March 27, 1888, and hatching was wit- 
nessed the following day. 
The specimen, to which Mr. Malloch refers as having been col- 
lected at College Station, Texas, was obtained in sweeping a field 
of wheat on the college farm, February 24, 1891, while the follow- 
ing day both larve and pupe were found clinging to driftwood in 
the Brazos River, seven miles away. 
An abundance of material was sent from both Somerset Land- 
ing, La., and Madison, Ark., during the years 1886 to 1891. While 
pupe will not develop adults if kept in stagnant water, nevertheless 
eggs of this species hatched en route between these points and 
Washington, and pupe, packed in Spanish moss in cigar boxes, fre- 
quently develop adults also en route. 
Both. this species and S. invenustum were observed attacking 
stock in the White Rock Mountains near Vineland, Ark., February 
of the same year. Specimens were sent to Washington, and re- 
ceived the division number 4094B. The other sendings to which 
this note refers were from Pecos Creek above Marble Falls, Texas, 
March 7, and Cypress Mill a few days later. Other material, 
belonging to S. venustum, was sent to the Department March 19 
and 23, 1887, when the females were observed ovipositing at Som- 
erset Landing, La. 
_S. meridionale was sent frequently during the years 1886 to 
1891 from both Somerset Landing, and from Madison, Ark., the 
latter collected in the St. Francis River. Simulium were also 
collected and forwarded to the Department from Elk Horn Falls 
on White River, just below Richmond, Ind., May 14, 1892. Also, 
specimens of two species from the Wabash River, near New Har- 
mony, Posey County, Ind. A number of head of stock were killed 
