CHARACTERS DISTINGUISHING LARVAE OF POPILLIA, ETC. 13 



Posterior end 

 of grub 



Anal si 

 Raster 

 (Th 

 Legs Second 

 - { First - 



ProifioracLq 

 sclerotized' 



plate 

 Three 

 thoracic 

 segments 



Head -front view, 

 ^■Width of head^. 



(Epicranial 

 stem 



Epicranial 



arm 

 (Clypeal 

 \ suture 

 Clypeus 



Labrum 

 Mandible 

 Lower surface 

 of clypeus and 

 labrum to 

 show location 

 of Epipharynx 



Distal 

 sclerotized 



Articulated spin 



Lateral 

 spines 



Right 

 torma 

 Sense cone 

 Clypeal 

 sclerotized' 



Sensory eminence 



Sensillae 

 fixed spines 

 or teeth 



, Marginal 

 striae 



Left torma 



>igusta 



Figure 1.- 



plate 

 Ciypeal sensillae 



Popillia japonica Newm: 



-A, diagram of a scarabaeid larva ; B. diagram of head of a scarabaeid larva 

 C, epipharynx of Popillia japonica. 



