AFRICAN SCALE INSECTS (COCCID2). 93 
interior pair scarcely longer than the antenne. Anal lobes attenuated ; apices 
with several stout spines; and there is a single and very long slender spine, 
arising from the ventral surface, the tip of which projects beyond the apex of 
the lobe. Stigmatic clefts shallow; spines rather short and bluntly pointed, 
central one a little more than twice the length of the two laterals. Marginal 
spines (fig. 7,¢) long ; they are also set closely together and are less deciduous on 
the cephalic margin than elsewhere. Derm cells minute, simple, and very widely 
separated. There are a few minute spines just in advance of the anal lobes. 
Length, 1°75-2°50 mm. 
On Citronella grass ; Entebbe, Uganda, 25. II. 1910 (C. C. Gowdey). 
The insects were so numerous that they almost covered the leaves of the food- 
plant ; and although so abundant quite 98 per cent. of them had been destroyed 
by a Chalcidid parasite; it is highly probable, therefore, that the markedly 
convex nature of the body was caused by the parasites, so that too much import- 
ance cannot be attached to this character. 
This Coccid somewhat resembles a minature example of Lecanium elongatum, 
Signoret, but is clearly distinct ; apart from its small size it may be easily dis- 
tinguished by the character of the antenne, and the closely set marginal spines. 
I am extremely indebted to Mr. E. E. Green for giving me the opportunity of 
describing this insect ; I have pleasure also in adopting the MS. name which he 
has given toit. Figures of the antenna and marginal spines of Lecanium 
elongatum, Signoret, (fig. 7, d,¢) have been added for convenience of reference, 
Lecanium (Eulecanium) treme, Newstead. 
On “ Nsambyia”; Palissa, Uganda, 1. XII. 1910 (C. C. Gowdey). 
This species was described, quite recently, from examples collected by Prof. 
A. Zimmermann, at Amani, German East Africa. The femaies bear a strong 
superficial resemblance to Lecanium persice, but may be readily distinguished by 
the very distinct and strongly rounded ridge to the margin, as well as by other 
important morphological characters. 
Pulvinaria jacksoni, Newstead. 
On Cotton ; Kyerime, near Lake Salisbury, Uganda, 10, XII. 1910 (C.-C. 
Gowdey). 
This remarkable Coccid has hitherto been recorded* only from the West 
Coast of Africa, where it was found infesting Cacao and a species of Ficus. 
in my original description of the insect, I called attention to the presence of two 
large flaccid tubercles in the stigmatic clefts as being one of the marked specific 
characters. In the examples from the Uganda Protectorate these processes are 
not visible, but I believe, however, that they have been completely destroyed by 
excessive maceration in the caustic potash. However this may be, the great 
length of the ovisac and its curious fungoid appearance will serve at once to 
distinguish this from any other known species of the genus. 
* Journ. Econ. Biol. 1908, Vol. I1., No. 4, p 155. 
