On a Collection of Coceidae and Aleurodidae. of the Berlin Zoologieal Museum. 173 
The distinctive features of the puparium are the very broad ventral flange and 
the remarkable dentate appendages. The examples were not ‚very numerous, and 
associated with them were many coceids belonging to the Diaspinae all of which 
were destroyed by a fungus. 
Aleurodes zimmermanni n. sp. (Newstead). 
Puparium elongate ovate, flat; segmentation of abdominal and thoracie areas 
distinet; margin broad and irregularly grooved or wrinkled; pale yellow or colourless, 
translucent or almost glass-like. Marginal fringe vertical, very thin, evenly striate, 
and glass like; it is also very fragile and is imperfect in all of the examples sub- 
mitted. No ventral flange. Margin (fig. 12b) with a number of tubular spinnerets; 
caudal setae short; one or two very small marginal spines are present and there are 
traces of the attachments of others which had been broken away in the process of 
mounting; so that in all probability they are more or less continuous, though not 
conspicuous all round the margin. Vasiform orifice short and somewhat cordate 
Length 50-—-75 mm. 
Habitat: D. Ost-Afrika, Amani, Sept. 1902. Auf Acanthacee. Prof. A. Zimmer- 
mann S. (Nr. 19). ’ 
Each puparium is surrounded by a little compact group of the exuviae of the 
larvae and eggs giving the leaves a very curious and striking appearance under 
the microscope. 
Aleurodes citricola, n. sp. (Newstead). 
Puparium elongate ovate; black and slightly glossy when free from exuviae of 
previous moults. Dorsum may or may not be keeled; with one bilateral, subdorsal 
row of large spines, and one submarginal row; the latter projecting beyond the secre- 
tionary margin, in some instances; these spines are generally laden at the tips with irre- 
gular nodules of almost colourless secretion. Marginal fringe broad, white, and practically 
homogenous. In most cases the dorsum is partly hidden by the exuviae of the 
previous moult, these are paler in colour than the puparium of the adult, but they 
are free from secretionary matter. Ventral margin or flange (fig. 12c) very narrow, 
inner edge deeply erenulated, but the crenulations are generally rendered obscure by 
the density of the chitine; though in some instances portions of the flange become 
flattened out so that the crenulations appear external. Structure of the vasiform 
orifice doubtful as owing to the opacity of the integument it is not possible to 
determine its characteristics. 
Length, exclusive of fringe, 1 mm. 
Ovum narrowly reniform or almost crescentic, peduncle very short; pale 
ochreous or straw-coloured, when empty. 
Habitat: D. Ost-Afrika, Dar es Salaam, April 1902. Auf Citrus sp. Prof. 
A. Zimmermann 8. (Nr. 2). 
The puparia occurred in large, overerowded, colonies appearing to the unaided 
eye as patches of soot-like deposit upon the under surface of the leaves. They were 
associated with the Coccid Aspidiotus aurantii Mask., chiefly young forms of the female. 
