The Primary Larva of the Sitares 



visible to lend themselves to accurate de- 

 scription. 



The antennae consist of two cylindrical 

 segments, equal in length, not very definitely 

 divided; these segments are nearly as long as 

 those of the palpi; the outer is surmounted 

 by a cirrus whose length is as much as thrice 

 that of the head and tapers off until it be- 

 comes invisible under a powerful pocket-lens. 

 Behind the base of either antennae are two 

 ocelli, unequal in size and almost touching. 



The thoracic segments are of equal length 

 and increase gradually in width from front 

 to back. The prothorax is wider than the 

 head, but is narrower in front than at the 

 base and is slightly rounded at the sides. 

 The legs are of medium length and fairly 

 robust, ending in a long, powerful, sharp and 

 very mobile claw. On the haunch and thigh 

 of each leg is a long cirrus, like that of the 

 antennae, almost as long as the whole limb 

 and standing at right angles to the plane of 

 locomotion when the creature moves. There 

 are a few stiff bristles on the legs. 



The abdomen has nine segments, of prac- 

 tically equal length, but shorter than those of 

 the thorax and diminishing very rapidly in 

 width toward the last. Fixed below the 

 eighth segment, or rather below the strip of 

 47 



