"Antonio Almte. 



a«7 



Professor C. H. T. Townssend has send me specimens of the 

 papa, which he collected July 6, 1902, on leaves of orange at 

 Xapotlan, in Jalisco. 



This species is easily known by the abundance of white 

 eotton-like secretion produces by the pupa. In this it resem- 

 bles somewhat certain species of Aleurod-icus, but the glass- 

 like threads of Aleurodicus are wanting, and the lingua is ve- 

 ry much smaller. Maskell says the lingua is wanting, but it is 

 present though very small, spatulateinform. The pupa is ve- 

 ry pale yellowish-grey, and has a marginal fringe of white 

 waxy secretion, in addition to the cotton-like substance. The 

 margin of the pupa (as seen under the microscope) is deeply 

 and strongly crenulate. At the base of each projection is a 

 pore, giving the effect of a double crenulation. 



Aleyrodes floccosa has only been known hitherto fron. Ja- 

 maica, West Indies, where it was discovered by the present 

 writer. It is possible, howeoer that it will prove identical 

 with A, goydbee, Goeldi, described in 1836 from Brazil. 



Explanation op the Figures. 



..£ 



:y 





i . ^ip*^ finlarged; showing live tea secretory taHwas, and th<e limgtoa. 



1*.. Secretory tube, much enlarged, 



8, Margin of papa, much enlarged., 



4. Tfteiforin orifice, with o$eratkun as4 Hoigaa, maoh enlarged. 



