172 
The Philippine Journal of Science 
1920 
Fig. 13. Pseudococcus virgatus (Ckll.), adult female; a, leg, X 115 ; b, antenna, X 115. 
of Brain 8 that the variety is not to be considered as distinct 
from typical virgatus seems to be entirely correct. The unre- 
liability of the antennal formula and of the relative lengths of 
antennal segments as a specific characteristic has been proven 
so frequently that it hardly seems worth while to call attention 
to it again. 
Specimens of this species from the following lots of material 
have been examined : 
Luzon, Manila, on Pithecolobium clulce, Acliyrantes aspera, 
Amaranthus spinosus, and Acalypha wilkesiana (coll. Me- 
Fig. 14. Pseudococcus virgatus (Ckll.), adult female; posterior apex of abdomen, showing: 
cerarius, peculiar heavy gland openings, anal ring, etc., X 97. 
8 Coccidae of South Africa, Trans. Royal Soc. South Africa 5 2 (1915) 
133. 
