Win the exception of four sepcies of coccidae collected at Yap, Karoline Is., 
and one species, collected at Guinse francaise, this collection was made in German 
East Afriea. It comprises in all 39 species, of which 32 are members of the Coceidae 
and 7 of the Aleurodidae. Out of this total 16 species are new to science and also 
to the African continent; and there are two additional species that have not hitherto 
been recorded from this region. 
Stictoeoccus dimorphus, Newstead!) is included in this memoir as one of the 
newly discovered species of Coceidae; but it has already been described elsewhere, 
owing to its recent occurrence in Uganda, as a Oacao pest. It is to Dr. Fülle- 
born, however, that we must attribute the original discovery of this very remarkable 
insect, in which the dimorphism in the larvae is very great and so far as one can 
ascertain absolutely unique. 
I can add nothing regarding the bionomics of the insects comprised in this 
collection; but I wish here to tender to the Directors of the Berlin, Zoological 
Museum, my sincere thanks for giving me the opportunity of examining the material 
and also for their indulgence in allowing me to retain it for so long a time. I 
apologise for the unavoidable delay, occasioned by my absence abroad, and pressure 
of other official work which prevented an earlier examination of the material. 
Monophlebus sp. 
Habitat: Bulongwa und Tandalla D. Ost-Afrika, von Mission Wolff gesammelt. 
Dr. Fülleborn. 
D. Ost-Afrika, Moschi, 1400 m, V. 1902, Merker 8. J.-Nr. 1284/04. 
Material insufficient for diagnostic purposes. 
Icerya(?) aegyptiaca Douglas. 
One example only, and this a female, is I think referable to this species; but 
the dorsum is so completely denuded of the characteristic waxen covering that it is 
impossible to definitely fix the species. The marginal appendages and the fixed 
ovisac are however identical with those found in Icerya aegyptiaca, but whether the 
morphological characters agree cannot be ascertained without sacrafieing the external 
covering, and this I do not feel justified in doing seeing that the example is not 
my own. 
Habitat: D. Ost-Afrika, Langenburg, März, April 1899, Dr. Fülleborn. 
Icerya longisetosa n. sp. (Newstead). 
Female, adult. Ovate, attenuated in front; colour in alcohol dull crimson; 
legs piceous. Dorsum clothed with white seeretionary matter, but so much damaged 
1) Bulletin African Ent. Res. Committee Vol. I. p. 63 1910. 
11* 
