COLLECTING INSECTS. 
59 
Neuroptera should if possible be pinned ; bat if this is impracticable, 
they may be put into papers in the same way as Lepidoptera ; or 
they may be laid in chip-boxes, and kept from rolling about with 
chips of tissue-paper. 
Orthoptera wanted for study of the structure may be put into 
spirit ; but those intended for the dry collection are almost useless 
if they have been preserved in this manner. They should be dried 
quickly and put into sawdust. Sometimes they travel well in papers 
in the same way as Lepidoptera ; but they must not be pressed. In 
the case of large-bodied species, such as Locusts, in a damp climate, it 
is advisable before doing this to make an incision with a pair of fine 
scissors along the under side of the abdomen, and, after emptying it 
of its contents, fill it with cotton-wool. 
Wasps and other smooth, non-hairy Hymenoptera may be put into 
sawdust. 
Bees should if possible be pinned, and sent home in corked boxes ; 
but when this is not practicable, they should be put into pill-boxes, 
with some chips of tissue-paper to prevent them rolling about. 
Diptera. — A few of the larger Diptera may be dealt with in the 
same way as bees; but as a rule they require special modes of 
treatment. 
