664 
Journal of Agricultural Research 
Vol. XXVIII, No. 7 
o. os mm. 
Fig. 3.—Broad external leaf-crown element— 
and secondary structures inlfront.of it 
A 
doimm. 
B 
O./mm. 
Fig. 4—Horizontal plate of dorsal and ven¬ 
tral lips; (A) front view, (B) side view 
Fig. 5.—Bursa of male; A, lateral view; B, ventral 
view 
