Plate XLIII 



Larvae and Pupae of CMronomidae 



Fig. 1. T any pus monilis, larva, lateral view, showing development of 

 imago before pupation. 



Ortliodddius sp. f, lal)ium of larva. 



Tanypus illinoensis, pupa, lateral view. 



CMronomus tentans, labium of larva. 



The same, larva, lateral view. 



Cricotopus trifasciatus, pupa, lateral view. 



Tanypus pilosellus, head of larva, ventral view. 



Protentlies culiciformis, head of larva, ventral view. 



Tanytarsus sp. ?, larval case. 

 Fig. 10. Protentlies punctipennis, respiratory organ of pupa. 



