Maskell. — On AleurodidaB. 441 



Plate XXVII.— 2. 



A leiirodes croceata. 

 a. Pupse on leaf. 

 6. Diagram of larva, showing spines. 



c. Pupa-case, dorsal view. 



d. Margin of pnpa-case. 



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



Plate XXVIII.— 1. 



Aleurodes dccipiens. ■. 



a. LarvEe and pupte on leaf. 



b. Larva, dorsal view. 



c. Margin of larva. 



d. Vasiform orfice, operculum, and lingula of larva (diagram). 



e. Pupa-case (?), dorsal view. 



/. Abdominal extremity of pupa-case (semi-diagram). 



Plate XXVIII.— 2. 



Aleurodes erlgerontis. 

 a. Pupae on leaf. 

 h. Pupa-case, dorsal view. 



c. Margin of pupa-case. 



d. Diagram of pupa-case, showing papillte and pores. 



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

 /. Eye of pupa, after treatment, side view. 



Plate XXIX.— 1. 



Alexirodes eiigenice. 



a. Pupaj on leaf. 



b. Pupa-case, showing enclosed insect. 



c. Diagram of pupa-case, showing radiating patches. 



d. One of the radiating patches, enlarged. 



e. Margin of pupa-case. 



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



Plate XXIX.— 2. 



Aleicrodes eugenics, var. aurantii, 



a. Pupa? on leaf. 



b. Pupa-case, showing enclosed insect. 



c. Diagram of pupa-case, showing radiating patches. 



d. One of the radiating patches, enlarged. 



e. Margin of pupa-case. 



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



Plate XXX.— 1. 



Aleurodes floccosa. 



a. Larvffi and pupaj on leaf. 



b. Diagram of larva, showing spines. 



c. Lanceolate spines of larva, enlarged. 



d. Pupa-case with attached larva, dorsal view. 



e. Dorsal spines of pupa case, enlarged. 

 /. Margin of pupa-case. 



g. Vasiform orifice and operculum (diagram). 



