210 CIIAS. K. BRAIN. 



of irregular size and shape, crowded together, and forming a pattern not unlike that 

 of crocodile leather. Circumgenital glands in four groups ; orifices numerous, upper 

 laterals with 21 to 24, lower laterals with 16 to 27 ; in every case the upper laterals 

 contain the larger number of orifices ; in one specimen were two single separate 

 orifices in the place of an anterior median group. Tubular spinnerets of the 

 filiform type, opening on the dorsal surface by large conspicuous pores arranged in 

 definite linear series ; the ducts themselves very delicate and difficult to trace. 

 Similar pores and spinnerets on the other abdominal segments. Genital aperture 

 between the lower lateral gland groups. Anal aperture about half-way between 

 extremity and genital opening. Length, 1 '50-1 '80 mm. Breadth, about 4 mm." 

 (Green). 



Habitat : On litchi, Hillary, near Durban (probably imported from Mauritius), 

 5th December 1915. 



Collection No. : 318, 



109. Pseudaonidia lycii, sp. n. (Plate xii, fig. 124). 



Scale of adult . $ about 1 '6 mm. in diameter, + circular or somewhat elongate, 

 moderately convex, sordid buff in colour, but usually obscured by the outer layers 

 of bark of the host-plant. The exuviae are + central, covered, and dull yellow in 

 rubbed specimens. The ventral scale is very delicate and remains attached to the 

 host-plant. 



Puparium of male somewhat similar but smaller, more elongate, and greyish white 

 in colour. The exuviae are at the anterior end, slightly covered, yellowish. 



Living material of this species has not been seen by the writer, so the following 

 particulars refer to mounted specimens : — 



Adult $ viviparous, about 1 mm. long. Anterior part of body strongly chitinised, 

 brown in colour. Pygidium slightly so, yellow. Free abdominal segments delicate, 

 hyaline. The front margin is regularly rounded, and smooth to the level of the mouth- 

 parts, from whence, backwards, the lateral margin usually presents three broadly 

 rounded undulations. The four free abdominal segments are slightly produced at 

 the sides, where they are irregularly rounded, and each bears a number of marginal 

 gland openings, several stout spines and a few hairs. The antennae consist of the 

 usual very low tubercle, with two short, slightly curved spines. Anterior and posterior 

 spiracles each with two anterior glands. The vulva is wide and situated at about 

 the same level as the anal opening. The chitin from the pygidial margin to the 

 vulva is coarsely rugose. The dorsal " embossed " area is not strongly chitinised 

 and the design is only seen with difficulty. The pygidial characters, especially the 

 character of the plates, indicate the position of this insect in the genus Pseudaonidia 

 more strongly than would the faint dorsal patch. There are three pairs of well 

 developed lobes, of which L 3 is low and broad, and often nearly or quite divided 

 into two lobules ; L t large, with margins crenulate, inner edges more steep than 

 outer ones, apical part uniformly rounded ; L 2 and L 3 also more steep on inner 

 margins, crenulate ; L 3 apparently made up of two similar lobules ; all lobes slightly 

 striated. P simple, + triangular or dagger-shaped. The spines at the bases of the 

 lobes are strong (fig. 124). Circumgenital glands 0. 



Formula : S, L p S, L,, S, 3P 3 , L 3 (or 11 3 ), S, 5-7P 4 . 



