212 CHAS. K. BKATN. 



Habitat : On leaves of an undetermined plant, Durban ; collected by C. P. v. d. 

 Merwe, August 1st 1916. 

 Collection No. : 257. 



Genus Parlatorea, Targ. 

 In this genus the scale of the adult $ is variable in form and may be + subcircular, 

 ovoid, or elongate. The insects bear a somewhat superficial resemblance to Fiorinia 

 owing to the large, usually hardened skin of the second stage, which in Parlatorea, 

 however, does not enclose the adult $, but merely covers it. 



The most striking generic character is found in the pygidium of the adult $, in 

 which there are three pairs of tri-lobed lobes and a rudimentary fourth lobe, which is 

 tooth-like in P. pergandei and zizyphi and plate-like in P. proteus ; a fringe of finely 

 toothed plates between them, and a series of thick-walled marginal glands which 

 open by broad mouths placed parallel to the body margin. 



The puparium of the $ is oblong, non-carinated, and rather narrow, with the larval 

 exuviae placed at the anterior extremity. 



So far as I can ascertain, we have only three species in this country, all of which 

 have been introduced. These may be distinguished as follows : — 

 Scale of adult $ black, + rectangular with rounded corners ; rudimentary lobe 

 (4th) + tooth-like, usually pointed ; dorsal gland-pores numerous. 



P. zizyphi. 



Scale of adult $ semi-transparent, + circular or pear-shaped ; rudimentary lobe 



(4th) as in zizyphi ; few dorsal gland-pores . . . . P. pergandei. 



Scale of adult $ yellowish, + egg-shaped: rudimentary lobe (4th) plate- like ; 



few dorsal gland-pores . . . . . . . . . . P. proteus. 



111. Parlatorea pergandei, Comst. (Plate xiii, fig. 130). 



Parlatoria pergandii, Comst., Rep. U.S. Dept. Agr., p. 327, 1881 ; Newst., Mon. 

 Brit. Coca, i, p. 143, 1901 ; Fernald, Catalogue, p. 319, 1903. 



Scale, of adult $ about 1 to 175 mm. long, very variable in shape, roundish to 

 broad pear-shaped, or sometimes + elongate, thin, semi-transparent, smooth, the 

 sub-lying $ being partly visible, smoky-white with a brownish streak and with 

 marginal, yellowish- or orange-brown exuviae. Ventral scale complete, whitish. 



The puparium of the <§ is similar in shape to that of P. proteus, smoky brown to 

 purplish brown behind the exuviae, and with the larval exuviae yellowish or straw- 

 coloured. 



When mounted the body of the adult $ is entirely hyaline, small, about 0"75 mm. 

 long, broadest slightly behind the middle. The anterior part is flatly rounded and 

 bears a small tubercle on each side at the level of the front portion of the mouth- 

 parts. The abdominal segments are broadly rounded and wider than the cephalo- 

 thorax. On their margins are a number of remarkable glandular protuberances. 

 The antennal tubercles are flat, with one long curved spine. Parastigmatic glands 0. 

 The pygidium is characterised by its regular, rounded appearance, with the large 

 marginal glands, whose openings are .at right angles to the long axis of the body, 



