62 CLASSIFICATION OF THE ALEYRODIDiE. 



adjacent waxy tubes, which at first is flat, then becomes a rather thick ring or 

 cushion, and at last becou)es so thick as to raise the pupa somewhat high above 

 the leaf, and then it seems as if resting on a very elegantly-fluted white wall ; 

 vasiform orifice subelliptical, with concave anterior edge and broadly rounded 

 sides and end; operculum broad and short, the posterior edge concave; lingula 

 very long, extended beyond the orifice, subcylindrical, with emarginate sides and 

 compressed extremity, the end rugose, with four rather long and many very 

 short setse or hairs. 



Adult form unknown. 



Hab. in Fiji, on Psidium sp. My specimens were sent by Mr. R. L. Holmes. 



The arrangement of the dorsal spines, and the peculiar lingula, will distin- 

 guish this species. 



DESCRIPTIVE REMARKS. 



The type of this species was unfortunately not in the Maskell col- 

 lection. We have received, however, what is evidently the same in- 

 sect from Mr. R. S. Woglum, of this bureau, collected at the Botanic 

 Garden at Buitenzorg, Java, January, 1911, on a plant of the family 

 Sapindacefc, from which material we have drawn up the following 

 description : 



The larvae and pupae occur promiscuously over the underside of the 

 leaves, though when few or moderately abundant they occur more 

 along the midrib and larger veins. The surface of foliage on infested 

 plants is more or less covered with the usual growth of " sooty fun- 

 gus," nourished on the excretion from these insects. 



E(]f{/. — Size about 0.2 by 0.1 mm., subelliptical, the distal end 

 pointed. As seen on leaf, dark-brown to blackish in color; many 

 specimens iridescent, without markings. Stalk attached at basal end 

 and about twice length of egg. Eggs scattered promiscuously over 

 leaf and prostrate. In hatching the shell splits longitudinally in two 

 equal parts, which are held together at base (PL XIX, fig, 6). 



Larva (first stage). — Size about 0.26 by 0.153 mm,, elongate ellip- 

 tical in shape, though somewhat narrowed caudad. Around the mar- 

 gin is a short rim of white waxy secretion. Color on leaf light brown, 

 under microscope light yellowish to whitish. Eye spots reddish, 

 elongate, and often divided. Margin without evident crenulations, 

 except a shallow and variable sculpturing on cephalic end. Dorsum 

 uniform, without evident pores, but little convex. Margin all around 

 with minute setse, the two caudal pairs strongest. Vasiform orifice 

 relatively large, cordate in outline, about as wide as long. Oper- 

 culum half as long as orifice, the sides rounded. Lingula spatulate, 

 little if at all extended, minutely spinose. 



Pupa case. — Size about 1 by 0.53 mm., elliptical in outline, the 

 dorsum little convex; case raised on a vertical rim, all around of 

 white wax, apparently deflexed from the large wax tubes on margin 

 of case. In addition to the above secretion the dorsum is covered 

 with a plate of fused wax, through which project the compound wax 



