OF PSEUDOCOCCIDAE & ERIOCOCCIDAE 7 



studied. The author came to the conclusion that these groups represent two 

 closely related, though well separated families, Pseudococcidae and Eriococcidae. 

 Most of the species were represented by the macropterous males only, but some 

 were either brachypterous (G. salicicola) or apterous (P. fraxini) or with more than 

 one form available (macropterous and apterous in S. sacchari, and macropterous and 

 brachypterous in G. spuria). As already mentioned, comprehensive classification 

 of the families Pseudococcidae and Eriococcidae does not exist ; thus, the species 

 studied are given in the following list with those of Pseudococcidae arranged in 

 groups suggested by the results of the present work. 



PSEUDOCOCCIDAE 



PLANOCOCCUS Group 



Planococcus Ferris, 1950. 

 P. citri (Risso, 1813). 

 P. kenyae (Le Pelley, 1935). 

 P. dioscoreae Williams, i960. 



Planococcoides Ezzat & McConnell, 1956. 

 P. ireneus De Lotto, 1963. 



Nipaecoccus Sulc, 1945. 



N. vastator (Maskell, 1894). 

 N. nipae (Maskell, 1892). 



Maconellicoccus Ezzat, 1958. 

 M. hirsutus (Green, 1908). 



Ferrisiana Takahashi, 1929. 



F. virgata (Cockerell, 1893). 



Trionymus Berg, 1899. 



T. newsteadi (Green, 1917). 



PSEUDOCOCCUS Group 



Pseudococcus Westwood, 1840. 

 P. obscurus (Essig, 1909). 

 P. citriculus Green, 1922. 



Dysmicoccus Ferris, 1950. 



D. alazon Williams, i960. 



SACCHARICOCCUS Group 



Saccharicoccus Ferris, 1950. 



S. sacchari (Cockerell, 1895). 



