AFRICAN SCALE INSECTS (COCCID^). 



8J) 



are in all probability those of P. hlanchardi, Targ-Tozz. These are pale buff or 

 ochreous in colour, short and stumpy in form, and the pellicles are smoky green 

 or bottle-green in colour. They do not, in any measure, agree with the male 

 puparia of any known species of Ghionaspis with which I am familiar. 



Chionaspis cassiae, sp. n. 



Female j^fipafiiim. — White, very highly convex and distinctly mytiliform ; 

 generally with distinct transverse layers of the dusky, yellowish brown, epithelial 

 cells and long hairs from the food-plant incorporated with the secretion. Larval 

 pellicles pale orange-yellow ; second pellicles paler, and generally completely 

 covered by secretion. Length, 2-2"50 mm. 



Female, adult. — Apparently ovoviviparous, as several fully developed larvae 

 were found in the body of the parent. Shape, normal. Rudimentary antennae 

 with two rather long slender spines placed closely together so that they often 

 appear as a single stout spine. Parastigmatic spines 5-7 in number, forming a 

 small compound group near the orifice of the stigmata. Dorsal pores extending 

 as far as the thoracic region ; these organs are arranged, as usual, in scattered 

 and somewhat indefinite bands broadening towards the margins of each segment, 

 with the exception of the last in which they are placed much more closely 

 together, forming definite narrow bands, widely separated in the median line. 

 Pygidium with a similar band of pores, and five groups of circumgenital glands, 

 the formula of which is as follows : — 



8 11 6 9 



21 - 19 26 17 t - 20 20 - 22 



28 - 27 32 20 ? 21 - 27 24 - 27 



median lobes (fig. 4) distinctly bilobed and apposed basally. Squamae spinoseand 



Fig. 4.- 



-Chionaspis cassiae, Newst. ; margin of pygidium of adult female ; a, dorsal 

 view ; J, ventral view. 



arranged in five bilateral pairs ; the first pair covering the lateral margins of the 

 median lobes, being much the smallest. 



Pvparhim of male. — Pure opaque white ; with widely separated transverse 

 ridges or carinae, each ridge being curved towards the distal extremity of the 

 puparium. Pellicles bright yellow. Length, l-l'oO mm. 



