144 



ILLINOIS BIOLOGICAL MONOGRAPHS 



1462 



EXPLANATION OF PLATE 

 LARVAE OF XYELIDAE AND TENTHREDINIDAE 



Fig. 6 — Xyelidae. 

 Fig. 7 — Tenthredinidae. 

 Fig. 8 — Tenthredinidae. 

 Fig. 9 — Tenthredinidae. 

 Fig. 10 — Tenthredinidae. 



Megaxyela major. 



Diprioninae. Neodipriron lecontei. 

 Emphj^inae. Emphytus apertus. 

 Selandriinae. Strongylogaster anmilosits. 

 Dolerinae. Dolerus similis. 



au 

 nisp 



Pk 



spi 

 tig' 

 tsp 



anus 



mesothoracic spiracle 

 larvapod 



abdominal spiracle 

 mesothoracic leg 

 metathoracic spiracle 



