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numbers (April to June) the proportion of males also diminished and in June
nearly every anopheles caught was a female.

       The following tabulated statement of recorded catches illustrates this
point:—

Anopheles caught in houses on
the immediate outskirts of Amritsar.
Anopheles caught in a zone lying interior
to the extreme outskirts.
MARCH.  
(a) At Hakiman with few or no breeding places
in the neighbourhood.
 
N. fuliginosus male         0 No anopheles found.
            „          female         11  
N. stephensi male         1  
           „        female         1  
(b) At Jalewlayan many breeding places.  
N. fuliginosus male         35 N. fuliginosus male         0
            „          female         44             „          female         21
(c) Houses immediately behind above.  
N. fuliginosus male         10  
            „          female         37  
APRIL.  
Breeding places disappearing.  
N. fuliginosus male         9 N. fuliginosus male         1
            „          female         38             „          female         103
M. culicifacies male         3 M. culicifacies male         0
            „           female         15            „            female         3
N. stephensi male         3 N. stephensi male         0
            „       female         6             „       female         4
C. pulcherrima male         0  
           „             female         2  
JUNE.  
(a) Before extensive breeding places formed by
rains.
 
N. fuliginosus male         0 N. fuliginosus male         0
            „          female         6             „          female         1
M. culicifacies male         0  
           „            female         4  
N. stephensi male         0  
           „        female         9  

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