442 Transactions. — Zoology. 



wings are entirely immaculate, with minutely serrated mar- 

 gins. Genitalia normal. 



The abdominal cleft and emarginate lingula of this species 

 (especially the former) will distinguish it from A. ruhicola. 



55. Aleurodes stellata, Maskell, sp. nov. Plate XXXIV. — 2. 

 Larva light-brown, elliptical, flat ; length about eV^^- 



Margin minutely crenulated, but without a fringe. 



Pupa-case dark-brown, sometimes black; elliptical; very 

 slightly convex, with a median longitudinal ridge ; length about 

 ^^oin. Abdominal segments indistinct. Dorsum covered with 

 white meal, which frequently becomes rather thick and solid ; 

 this meal is secreted by dorsal pores, which it is not easy lo 

 make out on account of the blackness of the case ; there seem 

 to be two large ones on the cephalic region and two on the 

 thoracic, also four smaller on the abdomen, and the whole 

 dorsum is marked with very numerous minute dots, which 

 may be orifices of spinnerets. The margin is conspicuously 

 crenulated, and bears a long fringe of white waxy tubes, 

 which become agglomerated into almost a solid plate ; these 

 tubes are longer in some places than in others, so that the 

 fringe presents the appearance of a star with usually about 

 eight rays. Vasiform orifice small, roundly subconical, the 

 anterior edge straight ; operculum subsemicircular, covering 

 about half the orifice ; lingula obsolete. 



Adult form unknown. 



Hah. In Jamaica, on Lujnum vitce, in company with A. 

 floccosa. Specimens from Mr. Oockerell. 



56. Aleurodes spirsese, Douglas. Ent. Mo. Mag., 1894, pp. 

 73, 154. 



57. Aleurodes stypheliae, Maskell, sp. nov. Plate XXXV. — 1. 

 Eggs oval, yellow. 



Larva very dark-brown ; elliptical, flattish ; abdominal 

 segments distinct ; length about ^^in. Dorsum bearing a few 

 hairs. Margin very conspicuously striated and crenulated, 

 with scarcely any, if any, fringe. When the larval exuviae 

 are attached to the pupa-case the anterior edge is recurved, 

 giving the larva a truncate appearance. 



Pupa-case very dark-brown, or glossy-black ; elliptical, 

 with the abdomen rather tapering ; length about ^^pin. 

 Dorsum convex, with a mediaii longitudinal ridge, and distmct 

 abdominal segments. On the dorsum there are two long 

 spiny hairs situated on the centre of the thoracic region ; 

 and there are also some very minute pores in two rows 

 on the abdominal segments ; from these pores is secreted some 

 scanty and fragmentary white meal. Margin very conspicu- 

 ously tubular and crenulated, and bearing a fringe of white 



