180 The Philippine Journal of Science 1915 
Details as to the distribution of the various species in different 
localities will be found in Table I, but in general, Anopheles rossi 
and A. febrifer have been found in nearly all localities where 
careful search has been made for them. Anopheles febrifer has 
been found in various parts of Luzon, Mindoro, Palawan, Cebu, 
and Negros Islands—practically in all localities where fresh 
flowing water has occurred in ditches, brooks, and rivers. 
Anopheles maculatus has been found in Luzon (Canlubang, 
Camp Stotsenberg, Antipolo, and near Taytay), Mindoro (San 
Jose), and Cebu (near the city of Cebu). Anopheles sinensis 
has thus far been found only in Laguna Province, Luzon; but 
it is probable that a search throughout rice paddies at different 
seasons would prove that it is widely distributed in the 
Archipelago. 
As to habitat Anopheles rossii is by far the most adaptive. 
It has been found in the very salt water of evaporating ponds 
used in obtaining salt (Paranaque) and in brooks flowing from 
springs. It occurs in temporary puddles at roadsides and in the 
largest rivers. It is the commonest anopheline of rice paddies. 
While preferring moderately fresh water, it is often found abun- 
dantly in foul pools, carabao wallows, and even in the very foul 
water of tanks containing soaking cane (Canlubang). It has 
been found in small pools among stones practically in the middle 
of a clear flowing brook, where no alge or other vegetation 
occurred except the small amount growing on the stones (Cebu). 
In general, it is a sun-loving species and is rarely missing where 
masses of algze in ponds or rivers are well exposed to the sun. 
Anopheles barbirostris, while very widely distributed, has a 
more restricted distribution than A. rossii. It is less often found 
in foul water and is commonest where the water is comparatively 
fresh and aquatic plants are abundant. We have found it in 
a pool of brackish water separated from the sea by a railroad 
embankment (Tayabas), in a succession of pools of different 
grades of saltiness in the bed of a nearly dry stream, and in 
the amount of variation possible in the offspring of a single pair of 
mosquitoes. It may well be that only by such experiments will a sound 
basis for the classification of some species of anopheles be obtained. As 
stated by Walker and Barber [This Journal, Sec. B (1914), 9, 489, note] 
specimens of Anopheles (Myzomyia) febrifer Banks were sent by us to 
Doctor Ludlow, who identified them as Myzomyia christophersi Theobald. 
Doctor Ludlow informed us by letter that this is the same species as that 
reported by her from the Philippines as M. funesta. [See Ludlow, Bulletin 
No. 4, War Department. Office of the Surgeon General (1913), p. 36, 
footnote.] Myzomyia christophersi is a well-known malaria carrier of the 
hill regions of India. 
