674 The Philippine Journal of Science 1921 
Second-stage female-——About twice as large as the larva, 
somewhat broader, with the legs and antennze much reduced as 
in the adult, the apical seta of anal lobes reduced in size, the 
marginal sete widely separated and still hairlike. 
Male puparium.—Apparently characteristic of the genus as 
described and figured for other species; see figure. 
This species has been described from seven specimens 
mounted on slides and from a few additional specimens on the 
host. The material was collected on Pandanus sp. at the 
Botanic Gardens, Singapore, October, 1917 (Baker 9029). The 
types are in the United States National collection of Coccide. 
This species appears to differ from the other described 
species of the genus most conspicuously in having the legs and 
antenne present, but semirudimentary. Disregarding this dif- 
ference, the species would run to the pair zonatum and mariti- 
mum in Green’s key to the Ceylon species of the genus,* and 
from these two it appears to be separable by the distinctly 
greater width of the anal plates in proportion to their length, 
and by having the anterolateral margin of each of these at 
least slightly longer than the posterolateral. 
Paralecanium vacuum sp. nov. Plate 1, fig. 8. 
Adult female-—Occurring on the upper surface of the leaves 
of the host; very faintly convex, nearly circular, somewhat 
broadened behind; length, about 10 milimeters; width, about 
9; margin not or only slightly sinuate opposite the spiracles 
and at the anal cleft; light brown, varying and variegated, the. 
median area with numerous irregular blackish blotches, ap- 
parently produced by the discoloration of the dried internal or- 
ans; marginal area irregularly areolate with lighter streaks, 
with most of the extreme edge light; all this not constant; coated 
dorsally with a relatively thick, rather brittle, detachable layer 
of nearly transparent wax, this densely and minutely areolate, 
and showing near the margin radial rows of tiny holes corre- 
sponding in position to small conical] elevations of the underlying 
derm, these bearing small setee, showing also clusters of similar 
holes corresponding to the group pores, arranged in a semicir- 
cle on each side of the anal plates, and finally six very faint and 
slightly depressed longitudinal rows of quadrate areas of the 
sort usually found in the genus; derm clearing almost completely 
on treating with caustic potash, but showing numerous faint 
areolations, these scattered or irregularly grouped in the central 
*Coccidae of Ceylon, pt. 3 (1904) 185. 
