306 Cerococcus, 
CEROCOCCUS ORNATUS, sf. xov. 
(PLATE CXV.) 
Test of adult female (fgs. 2-6) irregularly oval, the posterior extremity 
(in fully matured examples) produced into a short upturned tube (fg. 5). In 
earlier examples this caudal extension is in the form of a trough, partially 
closed above by stout curling filaments. Dorsum strongly convex, the sides 
sloping inwards to the comparatively narrow ventral area (fig. 6), which is thin 
and easily ruptured. Dorsum with three prominent transverse waxy ridges 
produced, at the middle and two sides, into stout pointed processes : the lateral 
processes longest, tapering to fine points, and projecting (in fresh examples) 
considerably beyond the margin, which is itself thickened and tubercular. 
Posterior margin with two or more tapering processes directed backwards. 
There are several pairs of short white curved filaments on the median Jine, 
behind the third transverse ridge. In older examples the waxy processes are 
gradually reduced until they practically disappear, and old worn tests are more 
or less globular in form. Colour of early test purplish brown ; the ridges, pro- 
cesses, and thickened margins bright coral-red or crimson (fig. 2). Older 
examples become at first uniform pale red (fg. 4), and finally dull reddish 
brown. There are two white waxy ridges on each of the sloping sides, ex- 
tending from the first and third lateral processes, respectively, to the stigmatic 
openings. Length 2 to 250 mm. Breadth (exclusive of processes) 1°12 to 
1°50 mm. 
Male puparium (fg. 7) oblong, narrow, rounded at the extremities. An 
inconspicuous median and two prominent transverse ridges, the latter ter- 
minating laterally in pointed processes. A smaller pointed process, on each 
side, close to anterior extremity. Posterior third occupied by a large circular 
operculum with raised margins. Colour pale red to crimson. Length 1 mm. 
Breadth 0°45 mm. 
Adult female insect ( #g. 8) of a delicate greyish tint, in life. Broadly oval : 
the terminal segments abruptly narrowed. Abdomen terminating in two pro- 
minent irregularly conical lobes, with a bluntly conical median plate between 
them (jig. 9) ; each lobe with a triangular chitinous plate on its inner side and 
a longish stout seta at its apex. Ventral lip of anal aperture with four or more 
long stout spines. Anal ring with eight hairs. Rudimentary antenna (jg. 10) 
with from eight to twelve stout hairs on its apex. Limbs entirely wanting. 
Dorsum with numerous large and conspicuous paired glands, disposed prin- 
cipally in three broad transverse bands across the middle of the body (jg. 8), 
leaving the anterior and posterior areas comparatively free. The first and third 
bands divide near the margins, where they enclose a series of small circular 
glands (fig. 11). There is a straggling group of the large paired glands within 
the anterior margin ; a short marginal series on each side of the abdomen, just 
before the constriction ; and another short series, on each side, close to the 
