352 PROCEEDlNCx^ OF THE NATIONAL MUSEUM. vol.51. 



border of the vasiform orifice. The vasiform orifice (fig. 5) is very 

 prominently elevated. It is subcordate, tending to circular, and is 

 almost entirely filled by the operculum. The margin is dentate, 

 the teeth being rounded at their tips with the interspaces acute. 

 A space of 0.1 mm. is occupied by 12 teeth (fig. 4). 



Adult. — Unknown. 



Habitat. — Garolt, Java, on Citrus sp. and rose. Collected by 

 C. L. Marlatt, Dec. 7, 1901. 



Type.— Cat. No. 19102, U.S.N.M. 



ALEUROCANTHUS SPINOSUS (Kuwana). 



Plate 38, figs. 7-11. 



Aleyrodes spinosus Kuwana, Pomona College Journal of Entomology, vol. 3, 1911, 

 No. 4, p. 626. 



Egg (fig. 7) . — Eggs of this species were found amongst the para- 

 type material in the United States National Museum. They are 

 0.192 mm. long and 0.08 mm. wide, oval, curved, and with the short 

 stalk situated a short distance from the larger end. The surface is 

 faintly reticulate, the reticulate areas being large, some of them 

 measuring 0.012 mm. in diameter. The color is a light yellowish 

 brown. 



Larva. — The larvae are about 0.56 mm. long, yellowish, with 

 brownish central area. The spines are situated in about the same 

 position as those of the pupa, but they are proportionately longer, 

 and often many of them are lacking. 



Pupa case (fig. 8) . — In general appearance this species resembles 

 calophylli, though it can easily be distinguished from it by the posi- 

 tion and number of spines and the dentition of the margin. Shape 

 elliptic, broadest across the first or second abdominal segment; 

 median ridge very evident on the abdomen and rather acute on the 

 thorax. Size small, 0.88 by 0.64 mm. Color yellowish brown, 

 darker mesad with sometimes a reddish tint. In the late pupa cases 

 the eye spots are dark brown. Submarginal area unevenly pig- 

 mented and appearing granular. On the submarginal area there is a 

 row of 20 spines, 10 on the thorax, and 10 on the abdomen. Those 

 on the thorax are evenly distributed, fomiing a ring with 5 on each 

 side. On the abdomen, hovs^ever, this is not the case. Two of the 

 pairs are situated near the margin on the first two abdominal seg- 

 ments. The other three pairs are situated more mesad and caudad, 

 leaving a space between these and the first two, as shown in figure. 

 Opposite the space and on the subdorsal area are two pairs of spines 

 of the same size as the marginal ones. Cephalad of the first pair of 

 these spines, on the subdorsal area, is a pair of smaller ones, and on 

 the thorax there are eight pah's of minute spines, as sho^vn in the 

 figure. On the median abdominal ridge there are seven pairs of 



