446 Transactions. — Zoology. 



g. Vasiform orifice, operculum, aud lingula, normal form with retracted 



lingula. 

 h. Vasiform orifice seen from the side, lingula retracted. 

 k. Vasiform orifice seen from the side, lingula extended. 

 I. Type of female genitalia seen from above. 

 m. Type of female genitalia seen from the side. 

 n. Male genitalia (A. asplenii) seen from above, 

 o. ilale genitalia (.4. coviata) seen from above. 

 p. Type of male genitalia, seen from the side. 



Plate XXV.— 1. 

 Aleurodes hanksice. 



a. Larvie and pupte on leaf. 



b. Diagram of larva, showing arrangement of spines. 



c. Spine of larva, more highly magnified. 



d. Vasiform orifice and operculum (diagram). 



e. Margin of larva. 



/. Pupa-case, dorsal view. 



Plate XXV.— 2. 

 Aleurodes barodensis. 



a. Larvas, pupse, and eggs, on leaf, enlarged. 



b. Larva, dorsal view. 



c. Diagram of larva, showing arrangement of pores. 



d. Margin of larva and pupa. 



e. Vasiform orifice, operculum, and lingula. 



Plate XXVI.— 1. 

 Aleurodes cerata. 



a. Larvae and pupie on leaf. 



b. Pupa-case, dorsal view, enlarged. 



c. Diagram of pupa-case, showing pores. 



d. Margin of larva and pupa. 



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



Plate XXVI.— 2. 

 Aleurodes coviata. 



a. Larvae and pupoe on leaf. 



b. Diagram of laiva, showmg hairs. 



c. Margin of larva. 



d. Pupa case, showing enclosed insect. 



e. Margin of pupa case. 



/. Vasiform orifice and operculum (diagram). 



g. Forewing of adult. 



h. Margin of wing of adult. 



k. Genitalia of adult male (diagram). 



Plate XXVII.— 1. 

 Aleurodes cotesii. 



a. Larvte and pupse on leaf. 



b. Larva, dorsal view, enlarged. 



c. Margin and dorsal pores of larva. 



d. Pupa- case, dorsal view, enlarged. 



e. Margin of pupa-case. 

 /. Pupa-case, side view. 



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



