EXPLANATION OF PLATE V. 
Aleurodes tracheifer. 
50. Pupa-case. 
51. Portion of margin of pupa-case. 
52. Vasiform orifice, operculum, and lingula of pupa-case with the surrounding 
and spines. 
A leurodes va riabilis. 
53. Pupa-case. 
54. Fore-wing of adult. 
55. Vasiform orifice, operculum, and lingula of pupa-case. 
Aleurodes viUata. 
56. Pupa-case. 
57. Vasiform orifice, operculum, and lingula of pupa-case. 
58. Portion of margin of pupa-case. 
58 
