1916. 



Vol. XXIII, Plate II. 



il and prothetelous larva and normal pupa of Melanotus communis. Fig. 1, dorsum of normal 

 'g. 2, ventron of pupa. Fig. 3,, dorsum of prothetelous larva. Fig. 4, ventron of prothetelous 

 ''ig. 5, lateral aspect of prothetelous larva. 



