NO. 2156. SUBFAMILY ALEYRODINAE—QUAINTANCE d BAKER. 373 



is broad and marked with a series of suture-like lines extending 

 mesad, which lines arc puckered about the base of each spme. These 

 spines are prominent, extendmg beyond the margin of the case, are 

 yeUow in color, and are situated in the middle of the submarginal 

 area, forming a row on each side of usually eight spines. Just within 

 the margin the submarginal area shows a band composed of minute, 

 closely placed, pore-hke structures, and mesad of these there is a 

 series of larger paired pores (fig. 6). The vasiform orifice (fig. 2) 

 is usual for the genus, but it and the operculum are quite acute 

 caudad. The arms of the trilobed area extending caudad from the 

 orifice are relatively short and are swollen near the caudal margin of 

 the case to mclude a pore-Uke structure on each side. The central 

 tooth of the caudal pore is a distinct piece and appears as if mosaic. 

 The channel leading from the pore to the caudal portion of the orifice 

 is corrugated. The thoracic pore (fig. 4) ends in a trilobed structure, 

 suggesting that of solitarius. It is nofc, however, so distinctly sepa- 

 rated from the submarginal area. The margin (fig. 3) is armed with 

 very flattened divisions which can scarcely be called teeth. 



Adult. — Unknown. 



Described from pupa cases in balsam mounts. 



Type.— C&t. No. 19128, U.S.N.M. 



ALEUROLOBUS SIMULUS (Peal). 



Plate 46, figs. 1-14. 



Aleurodes Simula Peal, Journ. Asiatic Soc. Bengal, vol. 72, pt. 2, 1903, No. 3, 

 p. 81. 



We have not seen this species and it is with some hesitation that 

 we include it here. From the description and figures it seems to be 

 fairly closely related to flavus which undoubtedly falls within this 

 group. It should be noted, however, that the wing as given for 

 simulus is unmarked, a condition not met with in any of the other 

 species of this genus of which the adults are known, and the antenna 

 of the male is nearly twice as long as that of the female. 



Egg.— Size, 0.2 mm. by 0.09 mm. Color, hght yellow when first 

 laid,^ afterwards turning brown. Peduncle about one-fourth length 

 of egg. Examined while still within the body of the female the eggs 

 are hght yellow. The peduncle is curved inwards and pressed 

 against the egg. Color of peduncle pmk; basal end of egg fairly 

 dark yellow. 



Larva first stage. — Size, 0.25 mm. by 0.15 mm. 



Shape elUptical. Color, semitransparent yellow; two yellow pig- 

 ment patches in center of abdominal region. There are a series of 

 34 long hairs right around margin. The four hairs furthest cephalad 

 are grouped in two pairs placed some distance apart. Of the six 



