THE COCCIDAE OF SOUTH AFRICA. — lit. 201 



Chrysomphalus aonidum, Ckll. , Biol. Cent. Amer., ii, pt. 2, p. 25, 1899. 



Aspidiotus ficus, Fuller, 1st Rept. Ent. Natal, p. 100, 1901. 



Aspidiotus ficus, Newst., Mon. Brit. Coccidae, i, p. 104, 1901. 



Chrysompfialus aonidum (Linn.) Fernald, Catalogue, p. 286, 1903. 



Scale of adult $ circular, about 2 mm. diameter, purplish brown or blackish, with 

 distinct reddish or orange red exuviae. In fresh specimens, especially on rose, the 

 scale is covered by a delicate waxy bloom. In young specimens the covering of 

 the first exuviae is white. 



Male puparium dark brown, with pale margins and reddish exuviae. 



Adult $ broadly rounded in front, broad pear-shaped and noticeably pointed 

 behind, about 1 mm. long, yellow in colour when mature, very pale or almost 

 colourless when young. In mounted specimens the broadest part of the body is 

 seen to be situated a little posterior to the level of the mouth-parts. In front of 

 this point the cephalothorax is uniformly rounded, but suddenly narrows by a slight 

 shoulder on each side and from this point tapers gradually to the pygidial 

 margin. Each shoulder is armed with a small sharp series of slender spines placed 

 at wide intervals. 



The pygidium (fig. 117) has three pairs of well developed lobes which are sub-equal 

 in size : L x and L 2 distinctly once notched, L3 with the outer margin + serrate, 

 or crenulate, Plates rather deeply fringed. Beyond the lobes and plates the margin 

 is thickened. There are five pairs of prominent paraphyses, as shown in fig. 117 ; 

 occasionallv there is an indication of an additional small one from the outer edge of L„. 



OS 



Circumgenital glands in 4 groups : — 



• 6—8 6—8 

 2—4 2—4 

 Formula : P ls L v 2P 2 , L 2 , 3P 3 , L 3 , 3P 4 . 



Habitat : Common, especially in the coastal area of the Union, on a large variety 

 of plants, including avocado, camellia, citrus, palm, rose, fig, guava, ivy, mango, 

 oleander, privet, " umbenda " (native tree), and many others. 



■Collection No. : 233. 



100. Chrysomphalus rossi (Mask.) (Plate xii, fig. 116). 



Aspidiotus rossi, Mask., N.Z. Trans, xxiii, p. 3, 1890. 



A. (ChrysompJialus) rossi, Ckll., Bull. U.S. Dept. Agr., T.S. 6, p. 27, 1897. 



Chrysomphalus rossi, Leon., Gen. e Spec. Dias. Asp., p. 157, 1900. 



'Scale of adult $ usually large, about 3 mm. in diameter, generally circular, but 

 elongate on narrow leaves such as pine, or when against the mid-rib of a leaf ; dull 

 opaque black, with a brownish or greyish centre. 



The adult $ is broad pyriform, purplish or deep plum-coloured, with the pygidial 

 extremity yellowish. The abdominal segments are not produced and segmentation 

 is obscure. The antennal tubercle is small, with one long hair and one short 

 spur. There is a submarginal series of hairs around the body at wide intervals. 

 Parastigmatic glands 0. 



The pygidium (fig. 116) has three pairs of well-developed lobes, the outer edges 

 of which slope backward, conforming with the curve of the pygidial margin. Each 



