8 INTRODUCTION. 



to force tliem, and to lift the antennse from the base. Tlie whole 

 under surface of the insect including the legs and antennas should 

 rest upon the card, for if it do not, some parts will soon get broken 

 oif. The insects should be arranged side by side, $ and $, and 

 an example of each sex exhibited with the under side turned up. 

 The specimens may be afterwards separated by cutting through the 

 card with sharp scissors, or they may remain together ; but in any 

 case the card should be marked on the under side with the locality 

 and date of capture. Care should be taken to preserve the specimens 

 from the attacks of mites, which are especially fond of them whilst 

 drying, often devouring the antennse in a single night : a piece of 

 camphor kept in the drying box will accomplish this. Not till the 

 insects are quite dry should they be placed in the cabinet, and if 

 they then become greasy, they may be restored to their beauty by 

 immersion in benzine. 



