184 The Philippine Journal of Science 1920 
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 Coccidz 
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 
Fic. 28. Pulvinaria polygonata Ckll, adult Green’s species, which is excel- 
en oe —— spines, lently described and figured, 
Sian fea ee ae noe nave tO fan. 8 addition 
to the type material the follow- 
ing specimens have been examined: 
LUZON, Manila, on orange (coll. Compere) : Laguna Province, 
Los Bajfios, on Citrus nobilis (coll. Baker 10096, 10097 ds 
Pulvinaria tyleri Ckll. 
Pulvinaria tyleri Ckll., Ropinson, 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 
a 
Fic. 24. Pulvinaria tyleri Ckll., adult female; a, spiracular and marginal ies X 885; 6, 
details of marginal spines, X 640; ¢, anal plates, x 165. 
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 
