1920 
184 The Philippine Journal of Science 
Pulvinaria polygonata Ckll. Plate 1, fig. 9. 
Pulvinaria polygonata Ckll., Robinson, Philip. Journ. Sci. § D 
12 (1917) 10. 
Pulvinaria cellulosa Green, Cocc. Ceylon, pt. 4 (1909) 262. 
Through the kindness of the 
describers of these two species 
in sending to the United States 
National collection of Coccidse 
cotype material of each, it has 
been possible to make a direct 
comparison of specimens result- 
ing in the synonymy indicated 
above. It is unfortunate that 
Green’s species, which is excel- 
lently described and figured, 
should have to fall. In addition 
to the type material the follow- 
ing specimens have been examined : 
Luzon, Manila, on orange (coll. Compere ) : Laguna Province, 
Los Banos, on Citrus nobilis (coll. Baker 10096, 10097). 
Fig. 23. Pulvinaria polygonata Ckll., adult 
female ; a, spiracular and marginal spines, 
X 335 ; b, detail of marginal spine, X 640 ; 
c, anal plates from above, X 166. 
Pulvinaria tyleri Ckll. 
Pulvinaria tyleri Ckll., Robinson, Philip. Journ. Sci. § D 12 (1917) 
9. 
This species is somewhat doubtfully separated from the follow- 
ing, and it is possible that further study may show it to be some 
other already described species. In any event, this and the fol- 
lowing are very closely related, but it is possible in the material 
at hand to separate two groups of specimens which show a 
somewhat different appearance of the marginal spines, those of 
Fig. 24. Pulvinaria tyleri Ckll., adult female ; a, spiracular and marginal spines, X 335 ; 6, 
details of marginal spines, X 640 ; c, anal plates, X 166. 
this species appearing longer and slenderer and only very slightly 
expanded at tips, in contrast to the typical condition in Pul- 
vinaria psidii. There appears to be considerable normal varia- 
tion in the spines of both species, and this appearance is in- 
creased through alterations from the normal position for the 
