107 THE COCCIDAE OF SOUTH AFKICA— II.* By Chas. K. Brain, M.Sc, M.A., Division of Entomology, Pretoria, S.A. (Plates III-VII). Contents. Four Gall Coccids Genus Greioiacoccus . . „ Cissoccoccus . . „ Calycicoccus . . „ Amorphococcus Subfamily Conchaspinae Genus Conchaspis Subfamily Diaspinae Key to South African Genera Genus Aspidiotus Key to Sub-genera . . Sub-genus Diaspidiotus „ Hemiberlesea „ Selenaspidus „ Morganella Genus Furcaspis PAGK 107 108 109 111 112 113 113 114 115 117 117 124 128 130 136 137 Four Gal! Coccids. Although a large variety of plant-galls are known in South Africa, only four have so far been determined to be caused by Coccids. These are of particular interest because no two of them are similar, and more remarkable still is the fact that no two of the insects belong to the same genus, nor apparently to the same sub-family. Under these circumstances it has been thought advisable to group them together without reference to their systematic position in this paper. The characters of the galls and insects may be seen from Plates hi and iv. The four genera are Grewiacoccus, g.n., Cissococcus, Ckll., Calycicoccus, g.n., and Amorphococcus, Green. The first of these belongs undoubtedly to the Pseudo-coccinae ; the last undoubtedly to the Asterolecaniinae. The remaining two, Cissococcus and Calycicoccus, are so unusual that I am unable to place them in any existing sub-family. I therefore propose sub-family names with the characters of the type genera. Cockerell in his description of the genus Cissococcus prefaces it by saying : — " belongs to the Eriococcesh. Larva typically Eriococcine with rows of dorsal spines and prominent caudal tubercles." With this I cannot agree, as the larva has a distinct marginal series of stout conical spines but no dorsal ones. * The numbers applied to species and to the figures on the Plates follow on from those of Part I in Trans. Eoy. Soc. S. Africa, v, 2, pp. 65-194, 1915. (C478) b
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