448 Transactions. — Zoology. 



Plate XXX.— 2. 



Aleurodes fodiens. 



a. Puptc on leaf. 



b. Pupa in pit on under-sin-face of leaf. 



c. Elevation on upper surface of leaf. 



d. Pupa-case, showing enclosed insect. 



e. Margin of pupa-case. 



/. Vasiform orifice, operculum, and lingula (diagram). 



Plate XXXI.— 1. 

 Aleurcdes hirsiita. 



a. Larva; and pupse on leaf. 



b. Diagram of larva, showing arrangement of spines. 



c. Diagram of pupa-case, showing arrangement of spines. 



d. Spine of pupa-case, enlarged. 



e. Margin of pupa-case. 



f. Vasiform orifice and operculum (diagram). 



Plate XXXI.— 2. 

 Aleurodes hohnesii. 



a. Larvfe and pupte on leaf. 



b. Pupa-cases, dorsal and side views. 



c. Diagram of pupa-case, showing spines. 



d. Margin of pupa- case. 



e. Vasiform orifice, operculum, and lingula (diagram). 



f. Extremity of lingula, enlarged. 



Plate XXXII.— 1. 

 Aleurodes limbata. 



a. Larvte and pupas on leaf. 



b. Pupa-case with attached larval exuvise. 



c. Margin of pupa- case. 



d. Vasiform orifice and operculum (diagram). 



Plate XXXII.— 2. 

 Aleurodes nicotiance. 



a. Larvffi and pupse on leaf. 



b. Diagram of larva, showing depressions and marginal hairs. 



c. Pupa-case, dorsal view. 



d. Diagram of pupa-case, showing pustules. 



e. Margin of pupa-case, with pustules. 



/. Vasiform orifice, operculum, and Imgula (diagram). 



Plate XXXIII.— 1. 



Aleurodes niger. 

 a. Pupa on leaf. 

 6. Pupa-case, dorsal view. 



c. IMargin of pupa-case. 



d. Vasiform orifice and operculum (diagram). 



Plate XXXIII.— 2. 



Aleurodes ■pijjeris. 



a. Larvae and pupse on leaf. 



b. Pupa-case, dorsal view, with attached larval exuvise. 



c. Margin of pupa-case. 



