HOW TO KNOW THE IMMATURE INSECTS 



34a. Prolegs absent on 1st to 8th abdominal segments (rarely present 

 on 8th) 35 



34b. Prolegs present on 2 or more abdominal segments. . . ., 39 



35a. Head directed cephalad 41 



35b. Head directed ventrad or cephaloventrad 38 



38a. Head capsule may be deeply imbedded in 

 prothorax; may also possess adirontal area; 

 many species slug-like in form. 

 Fig. 90 Order LEPIDOPTERA page 149 



Fig. 90. Soddle back- 

 ed slug caterpillar, 

 Sobine stimuleo 

 (Clemens). 



36b. Head capsule not deeply embedded in prothorax and without 



adirontal areas 37 



37a. One pair of simple eyes present 



or absent; 2 pairs of spiracles 



on thorax (pro- and meso-); body 



usually eruciform. Fig. 91. 



. ^ ..^ Order HYMENOPTERA page 210 



Fig. 91. Ve$p« mocutoto Kirby. *^ ^ 



37b. Several pairs of simple eyes present 38 



38a. Several pairs of simple eyes may be present; 

 spiracles usually present on mesothorax only; 

 body U-shaped. 

 Fig. 92 Order COLEOPTERA page 72 



Fig. 92. Anomalo 

 kansanot Hayes 

 Ct McColloch. 



38b. Several simple eyes and in a close cluster usually present; meso- 



thoracic and metathoracic legs distinctly larger and project more 



laterad than the prothoracic legs Order MECOPTERA 



This small order represents some 350 species. The larvae are most- 

 ly carnivorous, few feed upon vegetable matter. The larvae bear a 

 close resemblance to caterpillars. 



48 



