388 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



shaped structure. Near the caudal margin there are two rather dis- 

 tinct lobes which partially inclose the fold. Color 3'ellow. 



Adults. — Unknown . 



Described from pupa cases in balsam mounts. 



Type.— Cat. No. 19194, U.S.N.M. 



ALEUROPLATUS (ALEUROPLATUS) GELATINOSUS (Cockerell). 



Plate 52, fig. 1; plate 49, figs. 17-19. 



Aleurodes geJatinosus Cockerell, Can. Ent., vol. 30, 1898, p. 264. 

 Aleyrodes gelatinosus Cockerell, Bemis, Proc. U. S. Nat. Mus., vol. 27, 1904, 

 p. 502. 



This species was described by Cockerell, and the different stages 

 were described by Bemis, Several details may here be added: 



Pwpa case (pi. 52, fig. 1). — The suture separating the thorax and 

 abdomen is curved cephalad to, or perhaps a httle beyond, the third 

 thoracic segment. On each of the two caudal segments of the thorax 

 there is a pair of prominent spines situated on tubercles. On the 

 cephahc part of the thorax about on the region where the eyespots 

 are usually located is a pair of tubercles similar to those on which the 

 spines just mentioned are situated. The thoracic tracheal folds are 

 evident and the comb (pi. 49, fig. 17) consists of two prominent 

 teeth with serrate margins, and differing somewhat from the caudal 

 comb (pi. 49, fig. 18). The vasiform orifice (pi. 49, fig. 19) is 

 subcircular in outUne with the margin tliickened. The operculum 

 fills about half the orifice and the upper surface of the latter is covered 

 with a membrane similar to that found in herhericolus and ovatus. 



On the leaf the case appears jet black and is surrounded with a 

 conspicuous copious secretion of gelatinous, yellowish wax. 



Adults. — Unknown. 



Type.— C&t. No. 8998, U.S.N.M. 



ALEUROPLATUS (ALEUROPLATUS) INCISUS, new species. 



Plate 52, fig. 2; plate 49, figs. 20-21. 

 The bureau collection contains four lots of this species as follows : 



