182 - The Philippine Journal of Science 1920 
b?. Female not covered with wax or, if present, this very thin and easily 
separable from the body, transparent and glassy; spiracular spines 
usually with three or less in each group, rarely more. 
d'. Abdomen dorsally without compound “cribriform plates,” three 
on each side of the anal opening; antennz and legs present and 
at least fairly well developed. 
e’. With only a single, very long, spiracular spine opposite each 
spiracle; body inclosed in, but not attached to, a glassy 
go AN Sag CS ce Omen ees Ceroplastodes Ckll. 
e?, With three or more spiracular spines in each group; body not 
inclosed in a glassy test. 
f'. Each anal plate very much longer than wide, these plates 
located near the center of the body; body more or less tri- 
angular with rounded angles; flat, with a small ovisac bor- 
‘ dering the posterior margin of the body of the adult (cf. 
Coccus spp. if without ovisac) -....... Protopulvinaria Ckll. 
f. Each anal plate more nearly triangular, the anterolateral 
margin usually only a little longer than the posterolateral, 
if much longer without ovisac in adult female; anal plates 
located nearer the posterior end of the body than the 
anterior; ovisac either wanting or very well developed; 
body slightly convex to hemispherical. 
g. Adult female secreting a well-developed posterior ovisac 
and, sometimes, a cottony pad on which it rests. 
Pulvinaria Targ. 
g°. Adult female not secreting a posterior ovisac. 
h*. Body convex to strongly hemispherical; derm with large, 
heavily chitinized, polygonal or oval cells, each with 
a central pore Saissetia Despl. 
_h*. Body only slightly convex; derm without the large, 
closely crowded, polygonal or oval areas, although 
sometimes with widely separated circular or oval 
areas Coccus Linn. 
d@. Abdomen dorsally with six compound “cribriform plates,” ar- 
ranged in a semicircle, three on each side of and anterior to the 
anal plates; antenne and legs rudimentary or absent. 
Platylecanium Ckll. and Rob. 
a’, Marginal spines much enlarged, flattened, broadly fan-shaped; body 
flat, broad-oval to nearly circular. Paralecanium CkIl. 
Genus PULVINARIA Targioni Tozzetti 
This genus as at present recognized is characterized only by the 
full development of a posterior ovisac in the adult female. In 
the Philippine species the ovisac is well developed when com- 
pletely formed, and the anal plates of all species have the pos- 
terolateral and anterolateral margins about equal in length, in 
contrast to Protopulvinaria, which has at times been included in 
