58 THE NATURALIST'S GUIDE. 



aquatic species may be secured with a net ; they should 

 be carefully handled, however, to avoid the sharp sting, or 

 piercer, with which some of them are armed. 



Grasshoppers, Crickets, etc., or Orthoptera. Members of 

 this order may be found everywhere, the grasshoppers in 

 the open fields and woods, where they may be caught in 

 nets. The best way to kill them is to prick them on the 

 under side of the thorax with the point of a quill that 

 has been dipped in a solution of oxalic acid. If they 

 are not to be mounted instantly, wrap them in paper. 

 Crickets may be found in the ground in holes or burrows, 

 under stones, and in the grass ; a few species may be taken 

 on the leaves of trees or bushes ; some species of the well- 

 known Cockroach may be found in houses, and some under 

 stones and beneath the bark of trees. 



All of the above may be mounted by placing the pin 

 through the thorax, and arranging the legs as before de- 

 scribed. The wings are also extended in the same man- 

 ner as the beetles', with the exception of the wing-coverts, 

 which are fastened with cards like the wings. 



Walking-Sticks are found on low bushes or on trees, some- 

 times upon the ground. They are to be put into alcohol 

 to kill them, then mounted like the beetles. These in- 

 sects, when dry, require delicate manipulation while being 

 moved, as they are 'very fragile. When the colors of the 

 Orthoptera are to be preserved perfectly, place them in 

 pure glycerine. This is especially necessary in preserving 

 the larvse of grasshoppers. Grasshoppers may be put into 

 alcohol if convenient, but it must be very strong. This 

 method will generally change the colors completely. Cock- 

 roaches and crickets should always be killed by placing 

 them in strong alcohol. 



Moths and Butterflies, or Lepidoptera. All butterflies 

 are diurnal, and are generally caught with the net. They 

 may be killed by pinching the body just below the wings, 



