i6o 



2. Allow the insect or insects to escape into 

 a clean, dry, glass vessel. 



Pour some chloroform on a pellet of wool 

 and place under the jar, but take care that the 

 mosquitoes do not get wetted by the chloroform. 

 Leave them exposed to the vapour of chloroform 

 some little time after apparent death. Tobacco 

 smoke may also be used for killing. 



After killing, turn the mosquitoes out upon 

 a sheet of clean paper. 



To Mount Mosquitoes 



Necessary apparatus — 



Fine silver pins. No. 20. 

 Thin cardboard or thick paper. 

 Large entomological or ordinary pins. 

 Specimen tubes with corks. 



1. Prepare a disc by cutting with scissors 

 a circular piece of Bristol board (or very thick 

 paper). The diameter should be slightly less than 

 that of the specimen tube. 



2. Push a fine ' silver ' pin two-thirds of its 

 length through the centre of this. 



3. Place the mosquito upon its back on a 

 clean sheet of paper. (In this and other manipula- 

 tions use a pin for moving or steadying the 

 mosquito.) 



4. Take the head of the fine pin in the 

 finger and thumb, or hold it near the head end 

 with a pair of forceps. Endeavour to place the 

 point of the pin exactly in the centre of the origin 

 of the legs, which all arise very close together 

 from the under surface of the thorax. Bear in 

 mind, that the more the insect is touched the more 



