THE COCCIDAE OF SOUTH AFRICA— II. 109 



are small and are situated at a distance from the bases of the antennae about equal 

 to the length of the latter. 



The antennae are 6-jointed, occasionally appearing 7-jointed owing to a 

 pseudarticulation in segment 3. The average lengths of the segments are approxi- 

 mately, in n : (1) 24, (2) 17, (3) 40, (4) 15, (5) 20, (6) 46 (fig. 76d). 



The legs are small, the approximate measurements in fi being : femur 68, tibia 44, 

 tarsus 34, claw 16 (fig. 76c). 



The anal ring is recessed in a deep groove and has six stout bristles, from between 

 which projects a short, stout, hollow cone. 



Habitat : On leaves of " kruisbesje " (Grevria occidentalis, Linn. — Tiliaceae), 

 Pienaar's River, Transvaal ; collected by the writer and Claude Fuller, 23rd January 

 1917. 



Collection No. : 305. 



Sub-family Cissococcinae, nov. 



(Characters of the type genus.) 



Genus CisSOCOCCUS, Ckll. 



Cissococcus, Ckll, Ann. Mag. N. H. (7) ix, p. 23, 1902. 



Adult $ causing large truncate-pear-shaped galls on the stems, tendrils or leaf- 

 stalks of the host-plant. Galls often solitary, but sometimes clustered in masses 

 of six or eight. Gall broad ; usually 10-12 mm. long ; tapering to top, where there 

 is a circular depression and perforation. Adult $ with small rudimentary legs and 

 without conspicuous antennae. Anal ring with six stout bristles enclosed in a delicate 

 fluted tube beneath a series of densely chitinised plates. Anal plates four in number, 

 two large outer ones with outer edges fringed with dagger-like spines (fig. 78a) ; 

 two inner ones with rounded outer edges and with rows of spines on disc. Integument 

 with simple, scattered glands and a few long bristles. 



Larva with long legs and 6-jointed antennae. Margin of body with complete 

 series of short conical spines, about 32 on each side. Anal tubercles produced, 

 each with one very long seta and several shorter ones. Anal ring with six hairs. 



Type, C.fulleri, Ckll. 



65. Cissococcus fulleri, Ckll. (Plates iii & iv, figs. 74 & 78). 



Cissococcus fulleri, Ckll., Ann. Mag. N.H. (7) ix, p. 23, 1902 ; Fernald, Catal. 

 Coccidae, p. 84, 1903. 



Insect causing large galls on the stems, tendrils or leaf-stalks of the host-plant. 

 The galls are normally solitary, but in many cases six to eight are clustered together 

 and are then distorted. The normal gall averages 12 mm. long, is broad pear-shaped, 

 almost as broad as long, broadly rounded at the base and slightly tapering to the 

 end (fig. 74) where the orifice is situated. The galls are usually fixed by one side, 

 so that the long axis of the gall is parallel with the stem or tendril to which it is 

 attached. The galls apparently grow very rapidly from June to August, for in 

 material just received (8th August 1916) Mr. Fuller writes that the galls have all 

 developed in the last six weeks. The twigs and leaves are green, but the galls 

 brown, and where a number are clustered together the intermediate stem is 



(C478) b2 



