HOW TO KNOW THE IMMATURE INSECTS 



39a. Head usually with more than 10 



^^^^^^T-^X^Y^^Y^^r^^^r^y^^ simple eyes on each side, closely 



^^^^^'^\'U'f\*'fj'll*^^ grouped; prolegs on abdominal 



'W^Y^^^^^^^ segments 1st to 8th or 3rd to 8th 



^ inclusive; anal end resembles a 



Fig. 93. Panorpa rufescens SUcking disk. 



^'^°^^- Fig. 93 Order MECOPTERA 



39b. Head with never more than 10 simple eyes on each side or en- 

 tirely wanting 40 



40a. Prolegs usually present on abdominal segments 3rd to 6th and 

 last, crochets present; adfrontal areas usually present; 1 to 8 

 pairs of simple eyes usually present. 

 Fig. 94 most LEPIDOPTERA page 149 



Fig. 94. a, Cerura vinula <L. ; b, Corn earworm, Heliothis armigera 

 (Hbn.); c, Euxoa auxiliaris Grate. 



Fig. 95. Imported currantworm, 

 Pteronidea ribesii (Scopoli). 



40b. Prolegs usually present on ab- 

 dominal segments 2nd to 8th 

 and last, sometimes 2nd to 6th, 

 ^nd to 7th and last; no crochets 

 present; no adfrontal areas; one 

 pair of simple eyes usually pre- 

 sent. Fig. 95. 

 Order HYMENOPTERA page 210 



41a. Thoracic legs with single claw (stout spines about base of clow 

 may create impression that there are 2 or more claws) 42 



41b, Thoracic legs with 2 distinct claws. 



47 



.44 



