979 
distinctness might be of the greatest value in modifying the fear that 
yellow fever, if once the germs were introduced here by infected persons, 
would find a ready foothold. 
However, it has already been pointed out by Strong + that a menace 
lies in the future commercial intercourse between the yellow-fever region 
of endemicity in the Antilles and the Isthmus of Panama and the ports 
of the East, including Hawaii, Guam, and the Philippines, when the 
Panama Canal shall have been completed, from the possibility of intro- 
ducing the infected Stegomyia fasciata Fabr., which would then be able 
to spread the disease by reason of the Siaviines fasciate Fabr., which 
were by him supposed to be widely distributed in the Philippines. 
Unless further search should prove the presence of this species in these 
Islands, the fear of an epidemic would be unfounded unless Stegomyia 
fasciata persistans Banks should prove to be able to convey yellow fever. 
The study of a fine series of bred specimens of S. scutellaris samarensis 
Ludl., in this laboratory, in which occur many beautiful variations, leads 
me to the belief that there is a very close relationship between S. scutel- 
laris Walk., and S. fasciata Fabr., and that their true zoégeographical 
boundary line lies in the vicinity of the Philippines, but a discussion 
of this will be left for a future paper. 
CULICIDA. 
I. ANOPHELINA! THEOBALD. 
MYZOMYIA Blanchard (2). 
. MyZoMYIA FUNESTA Giles. 
Anopheles funestus Giles, Mem. Liverp. Sch. etn. Med. (1900), 2, 50. 
Handbook of Gnats (1900), 162. 
—__—_______— Theob., Mono. Culic. (1901), 1, 178, Pl. IV, 
fig. 13. 
Handb. of Gnats (1902), 2d ed., 318. 
Myzomyia funesta Giles, Theob., Mono. Culic. (1903), 3, 34, Pl. 2. 
Theob., Gen. Insectorum, Culic. (1905), 7 
—_—_____.______- Ludlow, Cant (1906)S 75435: 
Central and western Africa, Sudan; Pampanga, Camp Stotsenberg, 
Angeles, P. I. (H. R. Whitmore). 
2. MyzoMyYIA LUDLOWIL Theobald, Mono. Culic. (1903), 3, 42, figs. 19-22. 
ae ee 7 = Gen. Ins., Culic. (1905), 7 
—_____________ Ludlow, Cas. Hat. (i@iEy;, A? z 10. 
PAMPANGA, Camp Stotsenberg, Angeles, P. I. (#. R. Whitmore) ; Ma- 
nina, P. I. (758, 3603, 4022 Banksy (2229 Banks, Schultze) (2161 
Schultze) (4554 P. G. Woolley). 
This mosquito is by far the commonest of the malaria group. It breeds 
readily in salt water in the vicinity of Manila. 
“Fourth Annual Report, U. S. Philippine Commission (1903), 586 et seq. 
é 
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