34 BULLETIN 1428, U. > S. DEPARTMENT OF AGRICULTURE 
distinctly limited, large, triangular, extending to posterior margin of cranium, 
provided with four setse on each side. Clypeus (fig. 15, G, c) distinct, broadly 
Fig. 15. — Details of fifth-stage larva of the cadelle : A, ventral mouth parts, dorsal 
view ; B, mandible ; C, ventral mouth parts, lateral view ; D, under side of labrum ; 
E, larva ; F, upper side of labrum ; G, head capsule, dorsal view ; H, head capsule, 
ventral view. Explanation of abbreviations : ant, Antenna ; cd, cardo ; f, f rons ; 
ga, gular area ; hpa, hypopharyngeal area ; hyb, hypopharyngeal bracon ; I, labrum ; 
Ip, labial palpus; ma, maxillary mala; mp, maxillary palpus; mt, mentum 
paragular plates ; sm, submentum 
V9P, 
transverse, about twice as wide as long, not chitinized, leathery, posterior 
margin with two setse on each side. Labrum (fig. 15, F; G, I) subquadrate, 
considerably broader than long, lateral margins curved and provided with 
