THE CRICKET. 9 



In separating the parts use the forceps, being careful to 

 get hold of the very base of each piece; then, holding 

 each part with the forceps, dip the side that is to go next 

 to the paper into the mucilage, and carefully place just 

 where it is to stay. This method avoids smearing the card. 

 Avoid getting too much mucilage. The mouth parts should 

 surround the head ; the wings should be opposite the parts 

 to which they were attached, as also the legs. The legs 

 should be separated to show all the segments ; the thorax 

 should be separated into its parts, but the abdomen would 

 better be kept entire. As the parts become very brittle 

 when dry, it is well, if the card is to be kept, to make a 

 little bridge of a strip of paper, on which to string the 

 rings of the thorax and abdomen. The soft parts should, 

 of course, be removed. 



THE CRICKET. 



1. In what are the cricket and grasshopper alike? 



2. In what respects do they differ ? 



3. The female cricket has a long, slender ovipositor. 

 Compare its parts with the parts of the grasshopper's 

 ovipositor, picking them apart with a dissecting 

 needle. Use a lens. 



4. A pair of tapering, jointed projections from the abdo- 

 men are the stylets. 



5. Compare the wings of the male and female. Look on 

 the under surface of the outer wings of the male for 

 a vein, running crosswise, near the anterior end, which 

 has on it a row of teeth. By rubbing this file on the 



