Cerococcus. 307 
anal lobes. Amongst the larger paired glands, and scattered over other parts 
of the dorsum, are many of a much smaller size. Cribriform plates small, each 
with a broad densely chitinous border and areolate centre (fig. 13); in two 
groups of four, immediately anterior to the narrowed part of the abdomen. 
Venter with small circular glands in loose transverse series across the abdominal 
segments, and some scattered paired glands of the smaller size. Length 2 mm. 
Adult male uniform dark brown. Wings hyaline; nervures colourless. 
Genital sheath (fg. 12) very broad at base; sharply pointed at extremity. 
Although the single example examined showed no waxy caudal filaments, there 
is a distinct glandular pit on each side, giving rise to fine paired setze such as 
usually support caudal filaments. Length i mm. Expanse of wings 1°75 mm. 
On bark of Coffea arabica; Pundaluoya. Also on Carissa sp.; Kaits Island. 
The insects, at a casual glance, resemble the small tufts of red fungus com- 
monly parasitic upon certain species of Diaspzdine. 
Hymenopterous parasites, bred from this species, have been determined by 
Ashmead as Cephalota purpureiventris, Motsch. 
EXPLANATION OF PLATE CXV. 
CEROCOCCUS ORNATUS. 
Fig. 1. Insects on bark of coffee tree, nat. size. 
2. Early test of adult female, dorsal view, x 17. 
a, of s) ventral view, with part of test broken 
away, Showing insect 27 sz¢u#, X 17. 
. Older test of female, dorsal view, x 17. 
PA . side view, X 17. 
7 2 ventral view, X 17. 
” 
Male puparium, dorsal view, x 20. 
. Female insect, optical section, x 25. 
Anal segment of female, x 250. 
to. Antenna of adult female, x 450. 
11. Part of marginal area, showing the several forms of glands, x 450. 
12. Abdominal extremity of adult male, x 250. 
13. Cribriform plate, x 600. 
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