80 EBURHAItrs OUTLINES OF 



into the hole in tbe gauge, and then pushing the insect 

 up to it. 



On the pin beneath the insect should be placed a little 

 piece of card bearing the number referring to your record 

 book. In pinning Hemiptera, (bugs, cicadas, etc.), the pin 

 should pass through the scutellum, or little triangular piece 

 on the back. (See Fig. 70.) 



Small insects, too small to pin, may be glued on the 

 narrow end of a small piece of triangular card board, and a 

 pin thrust through the wide end of the card. 



Before pinning Lepidoptera, (unless recently collected), 

 they should be softened, or rather, the joints should be re- 



lieved of their stiffness, by a sand-bath. This is done by 

 filling a little box half full of wet sand, with a thin paper 

 over it. The specimens are laid on the paper, and moist 

 air in a few hours renders the joints pliable. The pin is 

 run through the middle of the thorax. 



Lepidoptera are dried on a setting board, constructed 

 of two smooth, flat pieces of board, a foot or more in length, 

 laid side by side, with a narrow groove between them. On 

 each end nail a strip, as seen in Fig. 71, and over the groove, 

 on the same side that the strips are nailed, tack a strip of 

 cork. Your setting board is now complete and your speci- 

 men should be placed with the abdomen in the groove, the 



