THE COCCIDAE OF SOUTH AFKICA— III. 



197 



By Chas. K. Brain, M.Sc, M.A., 

 Division of Entomology, Pretoria, South Africa. 



(Plates XII-XVI.) 



CONTENTS 



Genus Cryptaspidiotus 

 Chrysomphalus 

 Pseudaonidia 

 Parlatorea 

 Aonidia 

 Gymnaspis 

 Howardia 

 Fiorinia 

 Diaspis 



Subgenus Aulacaspis 

 „ Epidiaspis 



Chionaspis Series . 



Key to Subgenera . 



Genus Chionaspis . 



PAGE. 



197 

 198 

 205 



212 

 214 

 218 

 219 

 221 

 222 

 225 

 228 

 229 

 229 

 230 



Genus Cryptaspidiotus, Lindinger. 

 Like Aspidiotus, except that the adult $ remains enclosed in the skin of the 2nd 

 stage, with the exception of the pygidium, which extends through the hind part of 

 the enclosing skin, beyond the posterior margin of the 2nd stage female (fig. 114). 



97. Cryptaspidiotus austro-africanus, Lindg. (Plate xii, fig. 114). 



A. austro-africanus Lindinger, Jahrb. Hamb. Wiss. Anst., xxvii, p. 505, 1910, 



and xxvii (3), p. 41, 1911. 

 The $ of this species makes conical depressions in the stems of its host-plant. The 

 body of the insect is thus below the general surface and is covered by the scale, 

 which is generally level with, or slightly below, the surrounding plant tissue. 



Female scale flat, + circular, whitish grey or yellowish, with + central exuviae 

 which are darker yellow. Scale about 1 mm. in diameter. 



Adult $ enclosed in the 2nd stage skin,"pear-shaped, almost colourless, with rounded 

 yellowish pygidium. Pygidia of 2nd stage and adult as illustrated in natural position 

 (fig. 114). Circumgenital glands 0. 



Second stage $ : P ls L 1; 2P, 2 , L 2 , 2P 3 , L 3 , 3-5P 4 . 

 Adult : P 15 L 15 P 2 , L 2 , L,. 



