202 CHAS. K. BRAIN. 



lobe is notched once on its outer edge. The plates are broad and deeply fringed. 

 Beyond the lobes and plates the margin is thickened and has chitinous processes 

 similar to the paraphyses but thinner and more indefinite. It is + notched, but not 

 roundly indented as in the variety mentioned later. There are 7 definite pairs 

 of paraphyses, as shown in fig. 116. Circumgenital glands in 4 groups : — 



7—9 7—9 8—8. 



3—5 3—5 usually 4—4 

 Formula :— P 1( L x , 2P 2 , L 2 3P 3 , L 3 , 3P 4 . 



Habitat : Cape Town, East London, Grahamstown, " Queenstown, Estcourt, 

 Dundee, Durban, Pietermaritzburg, Johannesburg, Pretoria, Krugersdorp, 

 Pietersburg, Bloemfontein. 



C. rossi is commonly found on -.—Acacia mehnoxylon, Buxus sp., Euonymus y 

 Hakea, ivy, oleander, Phormium tenax, and Pinus pinaster ; and it has also been 

 recorded on : — Aucuba, bottle-brush (Callistemon), Camellia, Carissa, Cordyline, 

 Ceratonia, Cupressus spp., croton, Dracaena, Grevillea, hawthorn, ilex, laurel, 

 mahogany, oak, Pandanus, palms, pepper, rose and Yucca. 



Collection No. : 238. 



100a. Chrysomphalus rossi (Mask.) var. greeni, Brain & Kelly. 



Asfidiotus rossi, Green, Cocc. Ceylon, i, p. 35, 1896. 



Chrysomphalus rossi var. greeni, Brain & Kelly, Bull. Ent. Pes., viii, 2, p. 184, 

 1917. 



Mr. Green's description of this insect, omitting figure references, is as follows : — 



" Eemale puparium circular, or irregularly oblong, flattish, opaque, reddish 

 brown or dark brown ; inner surface darker, almost black. Pellicles blackish, 

 frequently obscured by a layer of brownish secretion, with central boss and con- 

 centric ring ; sometimes depressed, sometimes slightly elevated. Ventral scale 

 obsolete, a white powdery film on surface of leaf, except at margins, where it is 

 stouter and adheres to the dorsal scale. Diameter 2 to 3 mm. 



" Male puparium stated by Maskell to be smaller and lighter in colour than that 

 of the female. I have not found the male insect in Ceylon. 



" Adult female broadly pyriform, terminal segment tapering suddenly to a point ; 

 median area tumescent ; margins flattered. Colour of living insect at first milky 

 white or ochreous, tinged with purplish, which deepens with age and extends over 

 the greatest part of the thorax, the flattened marginal area and the abdominal 

 segments remaining ochreous. Colour of dead and dried insect, brownish yellow. 

 Stigmata conspicuous ; no parastigmatic glands. Pygidium with six prominent, 

 obscurely tricuspid lobes, all well developed and sub-equal in size ; margin beyond 

 the lobes with seven projecting tooth- like processes, forming a bold and regular 

 serration ; margin between the lobes squarely but not deeply incised. Squames 

 deeply fringed, two between median lobes, two between first and second, three 

 between second and third, and one or two in the space between the third lobe and 

 the first marginal prominence. Circumgenital glands in four groups ; upper laterals 

 with 9 to 12 orifices, lower laterals with 8 to 9, their position indicated in the living 

 insect by the presence of four white waxy patches. A large number of very delicate 



