PLATE IV. 
Aus 
D oxy ee xs w 
Poyeyrgee 
Fic. 1.—Dorycephalus platyrhynchus Osb.; male, female,eggs, larva and structural 
details. After Osborn. 
FIG. 2.—Hecalus lineatus Uhl.; male, female andlarva. After Osborn. 
