The Coccidae of South Africa. 
115 
Pers., Clematis vitalba, croton, Crypto stemma calendulaceum E. Br., 
grape, lucerne (crowns of), Malva parvifiora, Mesemhryanthemum edule, 
Oxalis cernua, peach, pear. Pelargonium sp., Phytolacca dioica, pumpkins, 
red clover, Bichardia africana (arum lily), Bhus sp. (between galls on), 
Bohinia pseudacacia, Bumex sp., Senebiera coronopus, Senecio vulgaris, 
Silene gallica, Solatium sodo7naeum, Sonchus oleraceus, Spanish sulla, 
and Spergula arvensis. 
This insect is undoubtedly the worst pest the vine-growers in the 
Constantia Valley have to contend with at present, and will probably be 
one of the most difficult to combat. Mr. Mally is now working on 
fumigation methods for the species, but it is "apparent that this will have 
to be accompanied by clean-culture methods. In July and August, 1914, 
capensis was found to be common on weeds, including Sonchus, Spergula, 
Silene, Cenia, and Cryptostemma mentioned above, in the same vineyard, 
and also on Bhus sp. in the adjoining bush, while only few insects were 
seen on the vines themselves. Mealy-bug was abundant in the grapes of 
this vineyard last season. 
Collection Nos. : 49, 54, 67, 67a. 
18. PsEUDococcus ciTEi (Eisso). 
(Plate XX., Fig. 34.) 
Dorthesia citri Eisso, Essai Hist. Nat. des Grangers, 1813. 
Dactyloyius vitis Niediel, Bull. Soc. d'Acclim., p. 328, 1870. 
D. alaterni Sign., Essai, p. 309, 1875. 
D. citri Sign., p. 312. Deficits Sign., p. 315. 
D. indicus Sign., p. 317. D. lavandulae Sign., p. 318. 
D. vihurni Sign., p. 323. 
Boisduvalia quadricaudata Sign., p. 339. 
Lecanium phyllococcus Ashm., Can. Ent., xi., p. 160, 1879. 
Dactylopius hrevispiiius Targ., Ann. di Agr., p. 137, 1881. 
D. destructor Comst., Eeport, p. 342, 1881. 
Ps. citri (Eisso), Brain, Ann. Ent. Soc. Amer., v., p. 178, 1912. 
Adult $ : The antennal range, constructed from 30 measurements, 
is illustrated on p. 116 for comparison. 
The setae of the anal lobes are about 225 long ; those of the anal 
ring average 115 yu. 
This cosmopolitan species is found in all parts of South Africa, and it 
seems probable that it will, in time, spread to a number of our native 
plants. I have not yet been able to draw up a comprehensive host index 
