The Coccidae of South Africa. 
145 
Terminal joint broadly rounded at the apex. All joints with long 
bristles, those of the apical whorl reaching 75 fx in length. 
Habitat : $ ? with ovisacs and ^ puparia on rough bark of Acacia 
caffra, Pretoria, November, 1914. Collected by Miss Impey. As the 
earlier stages have not been observed outside the ovisac, it is impossible 
to say whether Acacia is the food plant of this species or not, as it is 
possible that the $ and ^ migrate from grass, etc., before spinning the 
ovisac and puparium. 
Material studied consisted of 2 J , 11 adult ? $ , and numerous ova 
and larvae. 
Collection No. : 39. 
36. .PsEUDOCOCCus SEGNis sp. n. 
(Plate XIX., Fig. 32.) 
A few twigs of native spiny-leaved veld bush were sent to this office by 
W. C. Winshaw, of Stellenbosch, as they were infested with adult $ ? 
and young of a species of Ceroijlastes. The twigs were packed in a small 
glass sweet-bottle, the wide mouth of which was covered with muslin. 
On examination it was found that there w^ere also four specimens, 
apparently .adult, of a dark green mealy-bug, quite different from any other 
known in the country. The description is as follows : — 
Adult $ : The four specimens range from 2-8 to 3*4 mm. in length, 
and are dark olivaceous-green in colour. There are no lateral or caudal 
filaments, and only a slight trace of white secretion, the insects appearing 
rather greasy or slug-like. This absence of secretion may be due to 
shaking in transit. 
The insects progressed with a smooth, slow motion, which intensified 
the slug-like impression. 
The legs and antennae are rich dark brown. 
In boiling NaOH the colour becomes blackish- brown, then light brown, 
and the liquid is slightly stained of a similar brownish tint. 
Cleared, stained, and mounted, it is noticed that the derm is clear and 
has scattered gland-pores — all of which are small. There are few scattered 
hairs, the longest being between the antennae (78 jj). 
The marginal spine areas comprise 2 slender spines and 5 to 8 small 
gland-pores (Fig. 32). There are two pairs of " eye-shaped cicatrices" in 
the usual position. 
The eyes are comparatively small and inconspicuous. The mentum is 
100 ^ long. 
The antennae are uniformly 9-3egmented, and exhibit the following 
11 
