90 



KOBBRT NEWSTEAb — OBSEliVATtOffS ON 



On Cassia Jlorihunda ; Entebbe, Uganda Protectorate, 1. VIII. 1910 (C. C. 

 Goivdey). 



The curious form of the male puparium should at once serve to distinguish 

 this insect from any other member of the genus Ch/'onaspis, typical forms being 

 more or less distinctly tricarinate. In this species, however, there is no trace of 

 the usual longitudinal ridges, which is remarkable, seeing that hitherto little 

 variety has been found in the form of the male puparia. 



The female belongs to that section of the genus in which the median lobes are 

 m close apposition ; it does not possess any very striking morphological characters 

 but is apparently distinct. 



Chionaspis substriata, Newstead. 



On Palm; Entebbe, Uganda, 18. VI. 1909 (C. C. Gowdey). 

 Chionaspis dentilobis, Newstead. 



Uganda (C C. Gowdey). Food-plant not stated. 



Fiorinia africana, sp. n. 



Female jnipariun^. — Somewhat ovate but suddenly narrowed posteriorly ; 

 widest and very highly convex in the region just behind the larval pellicle. 

 Colour varying from pure white to smoky grey ; the secretionary matter is piu'e 

 white, but when the layer over the exuviae of the second stage female (second 

 pellicle) is thin, the dark colour of the underlying insect shows through, giving 

 the puparium a smoky grey tinge. Over-crowded examples of the puparia 

 become distorted and irregular in shape as in other Diaspinae under similar 

 conditions. Larval pellicle usually ochreous buff", often with a small bottle- 

 green spot at the caudal extremity. Second peUicle piceous or dark castaneous 

 sometimes with a dull crimson area in the centre, the colour is, however, very 

 variable. 



Female, adult. — Pygidium (fig. 5) with an irregular arched group of circum- 



Fig. 5. — Fiorinia afriaaiia, Newst. ; pygidium of adult female. 



genital glands near its articulation with the first (distal) free abdominal segment ; 

 margin with (? several) simple quadrate lobes, and a number of short spines. 



Female, second stage (ni/mph). — Somewhat pyriform in shape, with the 

 abdominal segments gradually tapering towards the pygidium ; each segment 



J 



