ORDER NEl ROPTERA. 





they also differ in important respects from net- veined in 

 without a complete metamorphosis. The head la horizon- 

 tal and somewhat flattened; the body is flattened or cylin- 

 drical; The mouth-parte are free, adapted for biting, and 

 the mandibles well developed. The ligula differs from 

 that of the other net seined insects in being entire, form- 



al 



. 75.— Larva and pupa ida 



ing a large, broad, flat, rounded lobe. The prothorai is 

 large, broad, and Bquare, and the mesothoras and meta- 

 thorax are nearly "!' the same size, while the w irre- 



apond in being all of the same size; theyai sodecidedly 



net-veined as in the Orthoptera, Platyptera, Odonata, and 

 Plectoptera, the costal space being wide, while the trans- 



