KATYDIDS AND THEIR KIN. 223 



ward at the sides ; the antennae long, slender, and 

 many jointed ; the tarsi, or feet, three jointed, without 

 pads between the claws ; the ear situated on the tibia 

 of the fore leg, and the abdomen bearing a pair of 

 jointed cerci or stylets at the end. 



The ovipositor of the female, when present, is long, 

 usually spear-shaped, and consists, apparently, of two 

 pieces. Each of these halves, however, when closely 

 examined, is seen to be made up of two pieces so 

 united as to form a groove on the inner side ;. so that 

 when the two halves are fitted together, a tube is pro- 

 duced, down which the eggs pass to the repository in 

 the earth or twig fitted to receive them. 



representatives of 25 species of these interesting 

 insects have been taken in Indiana, several of which 

 are exceedingly abundant through- 

 out the State. Among these are 

 two species of burrowing or u mole 

 crickets" which rank first in size 

 and singularity of structure. When 

 full grown they measure from one 

 inch to an inch and a half in length ; 

 are light brown in color and have 



the body covered 

 The Mole ]} h t hai 



Crickets. / 



giving it a soft vel- 

 vety appearance. The females have 

 no visible ovipositor, and, exter- 

 nally, may be separated from the 

 males only by the difference in the 

 veining of the uppermost of the 

 wing covers. By their habit of bur- Fig - 54 ~ Mole Cricket ' 



