232 CHAS. K. BRAIN. 



leaves they are generally regular in outline, but when a large number are congregated 

 with male scales in the axils of the leaves they are often distorted. Ventral scale 

 delicate, adhering to the leaf. Male puparium small, linear, white, with bright 

 pale yellow exuviae. The secreted portion usually has a very strong median 

 keel. 



Adult $, mounted, about 1"2 mm. long, evenly elliptical, with both ends about 

 equally rounded ; very transparent, not highly chitinised. The abdominal segments 

 are not prominently produced but are flatly, broadly rounded. L x narrow, very 

 divergent, with their outer ends free, and always a little further back than L 2 ; 

 L 3 broadly rounded, rather close to L v with a short plate on either side. In some 

 cases there is an indication of a rudimentary L 3 opposite the opening of the second 

 conspicuous gland opening. P short, dagger-like, with broadened bases. The 

 pygidium as illustrated (fig. 150). Circumgenital glands in 5 compact groups : — ■ 



8—12 

 14—17 14—17 

 12—15 12—15 

 Formula : L v P 2 , L 2 , P 3 , G, G, L 3 , P 5) G, G. 



Habitat : On aloe, Grahamstown, C.P. ; collected by C. P. Lounsbury, August 

 1906. On aloe, Pretoria ; collected by the writer, November 1914. On grass, 

 Pretoria ; collected by C. P. Lounsbury and the writer, September 1914. 



Collection No. : 149, 149a, 180. 



135. Chionaspis natalensis, Mask. (Plate xvi, fig. 152). 



Chionaspis spartinae var. mtalensis, Mask., N.Z. Trans, xxviii, p. 390, 1896. 



Chionaspis natalensis, Fernald, Catalogue, p. 220, 1903. 



The scale of the adult $ is about 2 mm. long, narrow, slightly broadened behind, 

 white, with yellow exuviae. 



I have not been able to obtain fresh specimens of this species, but have been 

 fortunate enough to secure two slides from Mr. Arnold W. Cooper, of Richmond, 

 Natal. These were made in May 1895 and are apparently from part of the original 

 material submitted to Mr. Maskell. 



The male puparium is " white, elongated, cylindrical, carinated, length about 

 Jjj inch " (Maskell). 



The insect is elongate, about 1 '4 mm. long, narrowed at each end. The specimens 

 I have before me have not been treated with potash, but mounted direct with the 

 scales into Canada balsam. They are fairly satisfactory for observing the characters 

 of the pygidium, but other characters, such as the antennae, parastigmatic glands, 

 etc., cannot be determined. The pygidium is as illustrated (fig. 152). The entire 

 margin appears slightly thickened and the lobes are delicate and not always visible. 

 The second lobes consist each of two rounded lobules. The circumgenital glands are 

 in 5 group :— Median 8 — 13, anterior laterals 17 — 24, posterior laterals 14 — 20. 



Habitat : On " wire-grass " Richmond, Natal ; collected by A. W. Cooper, 

 May 1895. 



Collection No. : 142. 



