378 ROBERT JS'EWSTEAD. 



Female, adult (fig. 26, a). More or less elongate ; cephalo-thoracic area highly 

 convex, generally distorted, asymmetrical, and highly chilinised. Free abdominal 

 segments and pygidium, constituting the lower half of the body, not highly chitinised ; 

 the line of demarcation between the non- chitinised and chitinised areas sharply defined. 

 Proximal portion of rostrum very near to the cephalic margin. Rudimentary 

 antennae midway between the rostrum and margin, each with a single spine. 

 Stigmata large, anterior pair with four to five glands. Three free abdominal segments 

 above the pygidium each with a few large glands and one or two minute spines. 

 Pygidium (tig. 26, h) with strong convoluted striae in the region of the anal orifice, 

 which lies just below the articulation. Margin thickened and somewhat irregular ; 

 median lobes moderately developed and very slightly divergent, the distal edge some- 

 times faintly but irregularly dentate ; immediately adjacent to the lobes are two 

 extensions of the body-wall and beyond them two prominent glandular extensions 

 forming the terminals to the two short series of dorsal pores. Two minute spines 

 between the lobes, one in each of the adjacent spaces, four \vithin the margin, and one 

 beyond the second series of dorsal glands. Two or three minute simple squamae are 

 sometimes present between the series of dorsal glands. 



Length, 0-7-0-75 mm. 



South Africa : Windersboom, Transvaal, on an unnamed tree, 1915 {de Charmoy). 

 The highly chitinised anterior half of the body of the female and its remarkable 

 distortions may readily serve to distinguish this species from its allies. 



Chionaspis capensis, sp. nov. 



Female puparium. Broadly pyriform and rather highly convex ; opaque white, 

 with a semi-glossy surface and a hard close texture. Pellicles terminal ; colour dull 

 orange-yellow with darker confused markings. Ventral scale well formed, but 

 generally ruptured along the middle line. 



Length, r5-2 mm. ; width, 0-9-1 '1 mm. 



Female, adult. Very elongate, widest at the juncture of the thorax ^\'ith the 

 abdomen, narrowest in front. Rostrum well forward. Rudimentary antennae 

 {fig. 26, d) close together immediately above the rostrum, with two long, slender, 

 curved spines and two very stout spines, the latter a little less than half the length of 

 the former ; two or three fine hairs on the dorsum immediately above the antennae. 

 First pair of stigmata very near the mentum, with nine to eleven glands ; lower pair 

 near the middle of the insect, with generally two glands ; the glands in the former 

 often form two to three sub-groups and collectively present a somewhat tessellated 

 appearance. Dorsal tubular glands on the thoracic and first three abdominal seg- 

 ments small, with very short subcutaneous tubes ; those on the remaining segments 

 a little more than twice the size of the former and similar to those on the pygidium. 

 Derm with fine convoluted striae. Pygidium (fig. 26, c) broadly rounded, with three 

 groups of dorsal glands similar to those on the succeeding segments. Anal orifice 

 close up to the articulation. Vaginal orifice a little in advance of the centre. No 

 circumgenital glands. Fringe with two pairs of lobes ; the median pair rudimentary, 

 widely separated, duplex, and dentate ; the second pair moderately developed and 

 generally with a very faint notch towards the apex of the inner margin. Squamae 



