ECONOMIC ENTOMOLOGY. 



pin going into the cork. Then carefully take the fore- 

 wings and push them forward until the posterior margins 

 are in a straight line, that is, are at right angles with the 

 body. Push the back- wings up to almost meet the fore 

 ones, and then pin a strip of paper over the wings to hold 

 them in place (Fig. 71), and leave the specimens for a week 

 or more, when the papers may be removed, and the wings 

 will retain their position. 



Fig. 71, 



The wings of dragon-flies, and sometimes the right 

 wings of grasshoppers, are stretched in the same way. 



To mount larvae, carefully press out the intestines, then 

 introduce a blow-pipe, or straw, into the anus and blow up 

 the body to its natural size. Let it dry, and it will retain 

 this form. Large specimens may be stuffed with cotton. 



If you have collected some specimens which you intend 

 to keep in alcohol, pour off that which they were collected 

 in, and after washing them in clear water, put them into the 

 pure alcohol and they will keep as long as desired. 



