Plate XLIII 



Larvae and Pupae of CJiironomidae 



Fig. 1. Tanypus monilis, larva, lateral view, showing development of 



imago before pupation. 

 Fig. 2. Ortlwcladius sp.?, labium of larva. 

 Fig. 3. Tanypus illinoensis, pupa, lateral view. 

 Fig. 4. Cliironomus tentans, labium of larva. 

 Fig. 5. The same, larva, lateral view. 

 Fig. 6. Cricotopus trifasciatus, pupa, lateral view. 

 Fig. 7. Tanypus pilosellus, head of larva, ventral view. 

 Fig. 8. Prot entlies culiciformis, head of larva, ventral view. 

 Fig. 9. Tanytarsus sp. ?, larval case. 

 Fig. 10. • Prot entities punctipcnnis, respiratory organ of pupa. 



