THE COCCIDAE OF SOUTH AFRICA. —III. 



203 



filiform tubular spinnerets, opening on the dorsal surface by small and rather 

 inconspicuous pores arranged in definite series running upwards from the margin. 

 Larger cylindrical or trumpet-shaped ducts nearer the extremity, opening on the 

 margin between the lobes. Anal aperture slightly caudad of the lower spinneret 

 groups. Length, about 150 mm. 



"Adult male unknown. 



" Eggs pale purplish. Hatched shortly after extrusion. Well- developed embryos 

 can be seen within the body of the parent insect. 



" Young larvae very pale reddish, broadly oval ; caudal setae short. 



" Habitat in Ceylon on under-surface of leaves of Capparis moonii." 



I find what is undoubtedly this species on a native tree (Chaetachme aristata, 

 Planch.) at Durban and also on a native shrub from East London, C.P. (Cape No. 

 1248). This is certainly distinct from typical rossi, of which I have abundant 

 material from Australia, and is readily distinguished by the following characters : — 



C. rossi, Mask. 

 2 scale black, with lighter area over 

 exuviae. 



Margin of pygidium, beyond lobes 

 and plates not deeply notched. 

 Circumgenital glands : — ■ 

 7—9 7—9 

 3—5 3—5 



var. greeni. 

 2 scale brown, with darker area 

 over exuviae. 



Margin deeply notched or bayed in. 



Circumgenital glands : — 

 9—14 9—14 

 7—11 7—11 



The whole pygidium of the variety is wider than in rossi, and in a few cases, 

 at maturity, the pygidium is retracted. 

 Collection Nos. : 211, 249. 



101. Chrysomphalus dictyospermi (Morgan) (Plate xii, fig. 115). 



Aspidiotus dictyospermi, Morgan, Ent. Mo. Mag., xxv, p. 352, 1889. 



Aspidiotus dictyospermi var. arecae, Newst., Ent. Mo. Mag. xxix, p. 185, 1893. 



Chrysomphalus degeneratus, Leonardi, Riv. Pat. Veg. iv, p. 345, 1896. 



A. (Chrysomphalus) dictyospermi, Ckll., Bull. U.S. Dept. Agr.,T.S. 6, p. 23, 1897. 



Chrysomphalus minor, Leon., Riv. Pat. Veg. vii, p. 214, 1899 ; id., Gen. e spec, 

 Dias. Asp. p. 169, 1900. 



Chrysomphalus dictyospermi, Fernald, Catalogue, p. 289, 1903. 



Scale of adult female + circular, about L7 mm. in diameter, flat at margins 

 with raised centre, reddish-greyish, to dark-brown with paler margins, often semi- 

 transparent. Exuviae yellowish to blackish-brown from above, but bright reddish- 

 brown and glossy from below. In one lot of material on guava from Barberton 

 (No. 236a) the entire $ scale is brown, matt, with the exuviae concolorous. 



Male puparium more elongate, about 1 mm. long and 0"7 mm. broad, more 

 greyish-brown in colour. 



Adult $ partly viviparous at least ; mounted specimens usually contain many 

 embryos. When mounted, broad pear-shaped, about 1*2 mm. long and 1 mm. 

 broad, hyaline, margin with a sparse marginal series of spine-like hairs. 



