THE COLLECTION OF SPECIMENS. 



293 



usually fly into the bottom part of the bottle ; if it 

 does not, a slight lateral movement of the bottle will 

 cause it to do so. The bottle should then be brought 

 into a vertical position with the mouth directed up- 

 ward, and quickly carried to the cork which is held 

 in the left hand. 



The specimens collected should be left in a cyanide 

 bottle until the following morning. Then there will 

 be no danger of the resuscitation of any of them. 

 Warm dark nights when there is but little or no wind 

 are the best for sugaring. 



COLLECTING AT LIGHTS.- -Very many insects are 

 attracted to lights, and at such times are easily caught. 

 When electric street lamps can be reached they afford 

 the most prolific fields for the collector. A study 

 lamp placed at an open window on a summer even- 

 ing, although less prolific than the more conspicuous 

 street lamps, often yields good returns. 



