NO. 2156. SUBFAMILY ALEYRODINAE—QUAINTANCE d BAKER. 393 



folds scarcely separable from the adjacent teeth of the margin 

 (pi. 53, fig. 8). Vasiform orifice (pi. 53, fig. 9) subcircular in outline, 

 with the margin somewhat thickened, the operculum fiUing about 

 two-thirds of the orifice, which latter is covered with a membrane. 

 Color dark brown to black, darker across the sutures of the abdomen. 

 On the abdominal segments there are also minute, dark, pore-hke 

 markings. The developing eyes within the body are seen as large 

 black patches near the cephalic margin, and on some specimens there 

 are small yellowish semitransparent eyespots. Cephalad of the vasi- 

 form orifice there is a thickened area darker than that which sur- 

 rounds it. 



On the leaf the case is surrounded with a copious secretion of 

 gelatinous, semitransparent wax. Around margin of case the wax 

 is whitish, and a pencil of white wax extends caudad from caudal end 

 of case. 



Adults. — Unknown, 



Described from pupa cases in balsam mounts. 



Type.— C&t. No. 19201, U.S.N.M. 



ALEUROPLATUS (AEEUROPLATUS) PECTINIFERUS, new species. 



Plate 56, fig. 2; plate 53, figs. 10-14. 



This species is in the collection of the Bureau of Entomology in 

 six different collections as follows: 



Of this material Quaintance No. 8027 has been selected as type, 

 as it contains specimens of males and females. 



Pupa case (pi. 56, fig. 2). — Size 0.912 by 0,72 mm.; many speci- 

 mens considerably smaller; color dark brown or black. Outline 

 oval, narrowest across cephalic portion, slightly constricted across 

 the thoracic folds, and very slightly at the caudal fold. Dorsal 

 sutures indistinctly marked. Margin with shallow rounded teeth 

 and within margin on the submarginal area there is a series of minute 

 pores irregularly arranged. Thoracic folds distinct, the comb on the 

 margin of these composed of four or five long, prominent teeth 

 (pi. 53, fig. 10). Caudal comb of a similar character. The teeth on 

 the combs of this species are much more prominent than those of 

 any other dark form thus far known, and are quite distinctive. 



