148 
The Philippine Journal of Science 
1920 
has been made to cheek the localities listed exactly, but it is 
believed that most of the specimens are from Luzon. The data 
regarding the host, date of collection, locality, and name of col- 
lector have been copied, so far as possible, exactly as given with 
the different lots of material . 3 
The specimens have been prepared for microscopic study 
largely by Misses B. M. Boss and Sadie Keen, employees of the 
Bureau of Entomology. The drawings illustrating the struc- 
tural characteristics of the species have been prepared by Emily 
Morrison, who also aided in the preparation of the photo- 
graphic illustrations and in many other ways. To these I am 
correspondingly indebted. 
Although obviously unsatisfactory in a number of ways, the 
system of classification outlined by Fernald 4 has been followed, 
except in a few unimportant details. 
Unless some statement to the contrary is made, all of the 
identification keys which follow in this paper are based on the 
adult female of each species. 
Key to the Philippine subfamilies of the Coccidse. 
a \ Abdomen not terminating in a compound segment or pygidium; body 
naked or covered by secretion or a sac, not by a firm waxy scale 
separable from the insect; legs and antennas usually, but not always 
present. 
b 1 . Anal opening at the apex of prominent dorsal lobe, with a spini- 
form organ between it and a pair of spiracular processes; anal 
ring with setae; legs wanting; antennae rudimentary; body in- 
closed in a resinous cell with three orifices (cf. Ceroplastes) . 
Xachardiinae. 
b 2 . Anal opening not so placed (on chitinized horn in Ceroplastes) ; 
body without spiniform organ or spiracular processes ; not in- 
closed in a resinous cell with three orifices. 
&. With two or more pairs of abdominal spiracles; anal ring without 
setae, placed dorsally some distance before the body apex and 
not at the end of a cleft, circular, not covered by triangular 
plates; body usually thickly set with large hairs and circular 
gland pores Monophlebinae. 
c 2 . Without abdominal spiracles; anal ring normally bearing setae, 
placed at or close to the body apex or, if dorsally, at the anterior 
end of a cleft in the body. 
3 Some evident errors in names of localities have been corrected. — 
The Editors. 
4 A Catalogue of the Coccidae of the world, Bull. Hatch Exp. Sta. Mass. 
Agr. College 88 (1903). 
