THE COCCIDAE OF SOUTH AFRICA — II. 131 



II. Circumgenital glands in two groups. 



(6) Posterior lateral margins of cephalothorax rounded ; integument not perforate 



(fig. 104) . . articulatus (Morgan). 



(7) Posterior lateral margins of cephalothorax + acute ; integument appearing 



perforate (fig. 103) pertusus, sp. n. 



III. Circumgenital glands in four groups. 



(8) Anterior margin with tubercles (fig. 108) . . . . celastri, Mask. 

 B. Cephalothorax not distinctly separated at the margins from the abdomen. 



(9) Circumgenital glands absent (fig. 106) . . . . . . silvaticus, Lindgr. 



•85. Aspidiotus (Selenaspidus) lounsburyi (Marlatt) (Plate vii, fig. 100). 



Pseudaonidia (Selenaspidus) lounsburyi, Marlatt, Pr. Ent. Soc. Wash, ix, p. 139, 



1908. 

 Professor Marlatt's description is as follows : — 



" Female scale. Scale of adult female flat, subcircular, 2-2"5 mm. in longest 

 diameter ; yellowish white but dense and opaque ; exuviae resinous to brown, 

 covered with a slight excretion ; supplement usually three times diameter of second 

 exuvium ; thin but distinct ventral scale present which adheres to the leaf. 



"Male scale similar, oval, 1"5 mm. long ; exuvium near anterior end, brown. 



" Adult female. Form oval, nearly 1"5 mm. long, strongly chitinized and brown 

 in the case of old spent specimens ; body divided into two subequal parts by a deep 

 cephalothoracic suture ; segments of abdomen indicated by distinct sutures but 

 not marked by lateral incisions except in case of anal plate ; a short, stout lateral 

 spine, distinctly annulated in the more hardened specimens, a little anterior to 

 cephalothoracic suture. 



" Anal plate. Similar in general characteristics to articulatus but exhibiting impor- 

 tant differences; lobes in three pairs, not very large, oval in shape, and often 

 distinctly striate ; the two median subequal, the third smaller ; lateral teeth wanting 

 or represented by the broad plates laterad of the third lobe ; incisions shallow, scarcely 

 falling below the edge of the segment ; paraphyses indistinct or wanting ; inter- 

 lobular plates narrow, two forked at tip — two median, two in first lateral and three 

 in second lateral incision ; two obliquely truncated broad plates laterad of third 

 lobe, with rudimentary third plate ; spines minute and inconspicuous ; anal opening 

 narrow, oval, a little more than one third from tip ; vaginal opening very broad, 

 more than one-third width of segment ; dorsal pores numerous in radiating rows 

 from tip, but smaller and less abundant than in celastri ; basal thickenings a narrow 

 line in four sections ; ventral thickenings not marked." 



Habitat : On Mesembn/anthemum edule, Capetown ; collected by C. P. Lounsbury, 

 29th June 1897 (Cape Nos. : 1263 and 1313). 



Collection No. : 221. 



85a. Aspidiotus (Selenaspidus) lounsburyi, var. 



Scale of adult $ greenish grey, with uniform rusty-brown margins. Exuviae 

 covered, central, appearing + grey. 



