12 CHAS. K. BRAIN. 



205. Saissetia keliyi, sp. n. 



Adult ? almost circular, but rather wider than long (11-5 mm. by 13 mm.), flat, 

 closely adherent to stem, deep chestnut in colour, with the dorsum matt, without 

 ridges or lines of any kind, but flatly bounded to thin margin, often covered with 

 dust, etc., so as to appear like a large flat bUster on the bark. Younger specimens 

 rather Ughter in colour, with faint radiating ridges from the somewhat raised median 

 area. 



The following particulars concerning antennae, legs, and microscopic characters 

 in general, refer to insects measuring approximately 7 mm. long, i.e., before chitini- 

 sation was fully complete. 



Antenna 9-jointed, range in ft: (1) 48-54, (2) 85-102, (3) 129-153, (4) 75-85, 

 (5) 58-65, (6) 105-116, (7) 44-51, (8) 34-48, (9) 74-79. 

 Leg I : coxa 153, femur -|- trochanter 357, tibia 245, tarsus 153, claw 31//. 



Anal plate about 320 jli long. The margin has a single row of short, stout, conical 

 spines. Stigmatic cleft with 3 gradually tapering spines, laterals about 50//, median 

 about 136//. 



Around the body, just within the margin, is a series of complex, tubular glands, 

 about 40 in number, distributed at almost regular intervals. Scattered over the 

 integument, particularly near the margin, are numerous, short, stout, glandular 

 hairs. The thin marginal area has the usual i straight, sided polygonal cells ; 

 the median area has elongate oval cells much like those of Hemdlecanium theobromae, 

 Newstead. 



Habitat : On thick stems of Acacia melanoxylon, Pietermaritzburg, Natal ; 

 coUected by A. Kelly, June 1915. 



Collection No. : 118. 



The anal cleft is quite obsolete in mature specimens. This character, together 

 with the two distinct types of cells on the dorsum and the 9-jointed antennae, 

 reminds one of the type species of the genus Hemilecanium, Newst., but the absence 

 of the four perforate areas preclude this species from that genus. 



206. Saissetia persimiiis, Newst. (Plate i., fig. 234). 



Lecanium {Saissetia) persimile, Newst., Bull. Ent. Res. vii, p. 362, 1917. 



" Female, adult. Not differing appreciably in its external form, colour, and 

 density of chitin from Lecanium {Saissetia) oleae (Bernard), but in two examples 

 the dorsum was covered with a fine dusky- white, mealy secretion. The median 

 longitudinal and two transverse ridges, forming roughly the letter H, well marked 

 in two specimens, but absent in another. Anal cleft completely fused. Anal 

 lobes attenuated, outer angle broadly rounded, inner edge much the longest ; apex 

 bluntly pointed with one or two short spines. No stigmatic clefts ; spines three, 

 the central one slightly more than twice the length of the laterals. Antennae well 

 developed, of eight segments. Legs rather slender ; lower digitules very robust, 

 incrassate proximally, dilated distally. Derm thickly studded with small, but 

 well-defined, oval and translucent cells ; these are much more crowded together 

 at the margin and also larger." (Newstead). 



