74 INSECT LIFE. 



the locusts do not belong to the Locustidae, but to 

 the Acrididas. 



Family Gryllid^ (Gryl'li-das).— This is the last 

 of the three families of jumping Orthoptera. With 

 these insects the antennae, 

 like those of the long-horned 

 grasshoppers, are very slen- 

 der and longer than the 

 body, except in the mole- 



FiG. 55. — A cricket. Fig. 56. — A cricket. 



crickets. The ovipositor is spear-shaped when ex- 

 erted. The tarsi are three-jointed. The members 

 of this family are known as crickets (Figs. 55 and 56). 



Order Physopoda (Phy-sop'o-da). 

 Thrips. 



The members of this order have four zvings ; these 

 are similar in form, long, narrow, membranous, not 

 folded, zvith but few or no veins, and only rarely with 

 cross-veins ; they are fringed with long hairs, and are 

 laid horizontally along the back when at rest. The meta- 

 morphosis is incomplete. The mouth-parts are probably 

 used chiefly for sucking ; they are intermediate in form 

 between those of the sucking and those of the biting in- 

 sects. The tarsi are one- or two fainted and bladderlike 

 at tip. 



The name Physopoda is from two Greek 



