58 



ILLINOIS BIOLOGICAL MONOGRAPHS 



[290 



EXPLANATION OF PLATE 

 VENTRAL ASPECT OF THE HEAD 



Fig. 16. Epilachna borealis. 



The Label Pg for the palpiger is wanting. 

 Fig. 17. Chilocorus bivulnerus, caudal aspect. 

 Fig. 18. Chilocorus bivulnerus. 

 Fig. 19. Megilla maculata. 



The Label su for the submentum is wanting. 

 Fig. 20. Hippodatnia 13-punctato. 



The Label lig for ligula is wanting. 

 Fig. 21. Hippodatnia convergent. 



a 



cp 

 ea 



05 



I 



to 



<« 



lie 



lit 



lipi 



chitinous band 

 corpo tentorium 

 epicranial arms 

 epicranial suture 

 gula 



gena 



labiacoria 

 ligula 

 labial palpus 



