COLLECTING INSECTS. 
53 
Orthoptera should be pinned in 
the middle, between the bases of 
the wings. Of course, if they are 
pinned without being set, the pin 
must pass through the wings ; in 
which case it is better through the 
right wing. In some instances the 
pronotum is produced backwards, 
so as to cover a great part of the 
body ; in which case the pin must 
necessarily pierce this part. In 
most cases it is desirable to have 
specimens pinned in both ways. 
Hemiptera should as a rule be pinned through the 
right wing in the same way as Coleoptera ; but 
where the scutellum is large, it is necessary to pierce 
this part a little to the right of the centre, so as to 
avoid any central spot or mark. When the wings 
are set out, the pin may be in the centre. 
