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It matures more rapidly than either A. pseudopunctipenim or 
Arr. (?) malefactor. 
It outlives pseudopunctipennis and malefactor , in confinement 
at any rate, which is a proof of its ability to persist, for when these 
species are placed in one breeding jar malefactor dies quickly, next 
follow pseudo punctipennis, while specimens of albimana survive 
for days longer. 
DURATION OF LIFE OF MALES AND FEMALES IN CAPTIVITY 
Male specimens of A. pseudopunctipennis which have been kept 
in breeding jars with females, and supplied with raisins, dates and 
water, have lived for eighteen days. Male specimens of Ce. albimam 
have lived twelve and a half days. On the other hand, a virgin 
specimen of Stegomyia calopus has lived for one hundred and ten 
days. 
When virgin Anophelines have been given one or two blood 
meals two or three day's after emerging they have lived as long as 
sixteen days. This is in rather striking contrast with Stegomyia 
calopus , which under similar conditions lives months to the 
Anophelines weeks. Several specimens of S. calopus virgins still 
under observation have lived for several weeks, and have oviposited 
as late as sixty days after emerging, though never in contact with 
males. 
MUSICAL NOTE OF MOSQUITOS 
The characteristic musical note of Anophelines is caused by the 
vibration of the proboscis, as the following observation indicates:— 
A specimen of Arr. (?) malefactor was badly wet and sprawled; 
upon placing her upon a piece of filter paper and touching or 
approaching her proboscis the latter vibrated visibly, and emitted 
the characteristic high-pitched note; the wings were at rest, being 
stuck to the paper. 1 his was verified again and again. Later I 
picked up a slightly water-sprawled, infected mosquito for 
dissection and held it over a few drops of chloroform ; both wings 
were seen to vibrate rapidly as in flight, but noiselessly, while 
lolding the mosquito by the last abdominal segment and touching 
one wing at its tip the opposite wing would immediately stop 
