662 
The Philippine Journal of Science 
1921 
Coccus secretus sp. nov. 
Adult female . — Slightly longer than wide, flat, the center 
usually slightly elevated, with faint radiating ridges around the 
margin, dirty pale brown, appearing as if covered with a thin 
film of dust; maximum length, 1.75 millimeters; width, 1.5; 
usually a little smaller than this; body as mounted similar in 
shape and size; derm clearing completely on treatment with 
caustic potash, without traces of the Saissetia - like areolations 
of some related species; antennae small, normally 6-segmented, 
the measurements of the segments in microns as follows : 
Legs small, normal, the digitules slender, knobbed, that on claw 
larger and heavier than the other; spiracles not unusual, placed 
rather near body margin ; derm dorsally with a fairly close clus- 
ter of relatively large, circular to oval, apparently simple pores 
placed just anterior to anal plates, and with numerous other 
much smaller circular pores (probably the openings of tiny 
tubular ducts) scattered almost uniformly over the dorsal sur- 
face ; ventrally with long tubular ducts with cup-shaped bottoms 
near margin, with quinquelocular disk pores between each 
spiracle and the margin and with larger disk pores, usually with 
eight loculi, beneath the anal plates ; marginal setae large, entire, 
stout and stiff, tapering to a blunt point, each set in a heavy 
socket, and separated from adjacent spines by, usually, more 
than its own length; spiracular spines in threes, stout, the 
laterals tapering to a rounded apex, about as long as the marginal 
setae, the median plainly but variably longer, tapering to a 
sharper point; dorsally with an occasional small seta, ventrally 
