M 2 
Ccilia, albtmana, (Wiedemann) 
This is the Anopheline par excellence of the Amazon region. It is 
characterised by the presence of a black ring at the base of the last 
segment of the otherwise white hind tarsi. It is also a decidedly 
‘domestic’ species, and is both intra-urban and extra-urban; but is 
naturally most abundant in the swampy regions. It bites in the 
day time as well as at night; but is rarely met with in the houses 
until after sunset. 
It is the common practice among the natives of Brazil and Peru to 
sink tubs or barrels in the ground at or near the margins of the 
swamps. These receptacles fill rapidly with clear water which is used 
for drinking and washing purposes, and eventually become the chosen 
breeding place for this Anopheline. This habit is all the more 
remarkable seeing that the water attains a depth of three to four feet 
with a total absence of the higher forms of aquatic plants. We have 
also to record the capture of this mosquito at Itacoatiara and Brevis 
on the Amazon River, East of Manaos ; and at Santo Antonio on the 
Madeira River about 600 miles S.W. of the same city. 
Stethomyia nimba, Theobald 
One example taken at Taruman Waterfall about 18 miles N.W. of 
Manaos, July, igo6. Seen also in the swamp near Pensador. This 
curious Anopheline has hitherto been recorded only from British 
Guiana and Para. 
Megarhinus separalus , Arribalzaga 
Several examples of this handsome mosquito were taken at 
! anaos ’ Brazil > during the month of Julv, 1906. They all occurred 
in a reclaimed portion of the forest surrounded by swamps. These 
mosquitos could not be induced to feed on man ; and the larvae were 
not discoverable. 
j antninosoma musica , Say 
Two specimens, both females, were captured in Dr. Vigil’s h 
c quitos Peru. I he residence was surrounded by low shrubs 
ar rom any natural collection of terrestrial waters; 
