190 The Philippine Journal of Science 1920 
6 a . Marginal spines distinctly longer than the smallest spiracular spines; 
anal plates less elongate; without traces of an ovisac at maturity. 
c\ With a heavy median band of very minute pores running cephalad 
from the anal plates, this with some lateral arms; with small 
circular pores more or less definitely arranged on the dorsum. 
Coccus diversipes Ckll. 
e Without such a band of minute pores; dorsally with fairly nu- 
merous medium-sized oval pores with rather definite arrangement. 
Coccus mangiferse (Green). 
a \ Cephalolateral margin of anal plates at most very slightly longer than 
caudolateral margin; body more or less oval. 
d 1 . Marginal setag small, short, prominently dilated and frayed at 
apices; antennae normally 7-segmented.... Coccus viridis (Green). 
d 2 . Marginal setae much longer, slender, entire or rarely very faintly 
frayed at apices; antennae normally 8-segmented. 
Coccus elongatus (Sign.). 
Coccus diversipes Ckll. 
Coccus diversipes Ckll., Robinson, Philip. Journ. Sci. § D 12 (1917) 
15. 
This species does not appear to have been collected since the 
original lot of material from which it was described was ob- 
tained. Some figures are given in order to give a more elaborate 
idea of its characteristics than is to be obtained from the original 
description. As will be noted from these, it is quite cjosely re- 
lated to the following species in many ways, but dilfers in the 
relation and character of the marginal and spiracular spines, as 
well as as in having the band of very numerous, minute dorsal 
pores. 
Coccus mangiferse (Green). 
Lecanium mangiferse Green, Ent. Month. Mag. (1889) 249; Cocc. 
Ceylon, pt. 3 (1904) 216. 
This species is represented by a single lot of material collected 
at Paete, Laguna Province, on Cocos nucifera (coll. McGregor) . 
The microscopic characters of the species as illustrated are quite 
distinctive. 
Coccus viridis (Green) . 
Lecanium viride Green, Ent. Month. Mag. (1889) 284; Cocc. Ceylon, 
pt. 3 (1904) 216. 
Coccus viridis (Green) Robinson, Philip. Journ. Sci. § D 12 (1917) 16. 
While this is apparently a widespread tropical species, it has 
so far been collected only rarely in the Philippines. I have ex- 
amined the following material: 
Luzon, Manila, on Citrus sp. (coll. Banks 10201) : Bataan 
