Tech. Series 27, Bureau of Entomology, U. S. Dept. of Agriculture. 



Plate III. 



Centum. Proce56 



OUTEFl C UP 

 (^PINNEF\ETS 

 H\T^ ONY C HI UM 



roFiM Ofiirici: ClA^V 



Compound \\^x Poises 

 FKfi on yciiium 



OrEHCULUM 



Y—ORiriCE 



■LlNQxULA 



Diagrams of Aleyrodid Structures. 



Fig. 1.— Pupa case. Fis.2.— Compound wax pore. Fig.3.— Foot of subfamily Alevrodina>. Fig. 

 Foot of subfamily .Vleurodicina;. Fig. 5.— Head. Fig. 0.— \'asiform orifice." (Original.) 



