On a Colleetion of Coceidae and Aleurodidae, of the Berlin Zoologieal Museum. 167 
Ceroplastes rusci (Linn.) Signoret. 
The examples submitted for examination are all old adults, with the waxen 
test forming an homogenous läyer. The isolated examples are more or less hemi- 
sphaerical in shape, and when denuded of wax the female presents the following 
characteristies: Colour pale yellowish brown, region of the anal orifice piceous or 
black. Dorsal region more or less hemisphaerical surrounded by a deep depression 
or groove, and with a minute tubercle, generally present, in the middle of the back. 
Margin broadly convex and generally so constrieted as to form three bitateral and one 
anterior lobes or gibbosities, there is, however, no clypeate extension in front as in 
©. afrieanus and other allied species. Signorets figure!) (la) of the denuded female 
is misleading as it represents the lateral gibbosities as distinet and widely separated 
hemisphaericai bodies or tubercles, whereas these should be almost contiguous. The 
anal organs do not moreover project in such a marked degree as he has shown. 
After maceration in potash the integument becomes quite flaccid and transparent 
with the exception of a relatively small patch surrounding the rudimentary caudal 
extension which is highly chitinised and remains opaque after long maceration. Apart 
from these descrepancies, the specimens agree best with the characteristics of ©. rusei 
(Linn.) Signoret, and I do not feel that I have erred in referring the examples 
to this species. 
Habitat: D. Ost-Afrika, ohne näheren Fundort, Emin Pascha, 1891. 
Ceroplastes ceriferus, Anderson. 
Habitat: D. Ost-Afrika, Magrotto, VIII, 1902. Auf Coffea arabica. Prof. 
A. Zimmermann (Nr. 27). 
Half a dozen, more or less, denuded females, all preserved in alcohol. The 
specimens are all undersized but do not otherwise, as far as I can trace, differ trom 
typical examples from India. 
Habitat: „Nyassa-See, Wiedhafen, 28. I. bis 5. II. 99. Dr. Fülleborn 8. G.“ 
There was but one female, and this a young adult, presenting all the external 
characters of C. ceriferus. The name of the food-plant is not given. 
Ceroplastes egbarum, Cockerell. 
Habitat: D. Ost-Afrika, Ngambo, 6. VIII. 02, anf Albizzia lebbek. Prof. 
A. Zimmermann (Nr. 26). 
One unusually large female of this species. 
Aspidotus destructor Sign. 
D. Ost-Afrika, Kiboteni, 27. IX. 04. A. Karasek 8. J.-Nr. 1363/04. 
D. Ost-Afrika, Buschirihof, 29. LX. 1902. Auf Musa. Prof. A. Zimmermann 
S. (Nr. 22). 
D. Ost-Afrika, Amani, V. 1902. Auf Piper subpeltatum. Prof. A. Zimmer- 
mann S. (Nr. 14). 
A few examples chiefly females and these in very poor condition. 
1) Essai, Plate IX. Coccides. 
