18, 6 Morrison: Nondiaspine Coccidz 657 
plates, small, stout, with pores and eight relatively large and 
long sete; no hypopygial sete. 
Intermediate-stage female—Similar to adult, except for 
smaller size, reduced number of pores and sete, and the pres- 
ence of a pair of stout spiracular spines, one larger than the 
other, opposite each spiracle. 
Larva.—Oval, tending toward oblong, antennz 6-segmented, 
the third longest; legs normal, rather slender, claw long, slightly 
curved at apex, with denticle, digitules long and slender, slightly 
knobbed ; margin of body with a row of rather widely separated 
slender setz; spiracular spines three in each group, two short, 
rounded-conical, one, the median, much larger and cylindrical, 
all about same diameter at base; with a ventral submarginal 
row of smaller sete, and a few longer, very slender ones anterior 
to the anal plates and near antennz; with three or four quadri- 
locular pores between each spiracle and margin, no other pores 
noted; anal plates triangular, slender, with a large and long 
apical seta, three much smaller subapical marginal sete and one 
ventral ridge seta on each. 
This species has been described from five mounted adults, 
several mounted larve, and a number of unmounted specimens, 
all received from Mr. E. E. Green with the following informa- 
tion: In hollow stems of Macaranga hypolema, Singapore (coll. 
I. H. Burkill). The name used above is the manuscript one 
assigned to the species by Mr. Green, who had also tentatively 
assigned the species to the genus Ctenochiton Mask. I have ex- 
amined the type of this genus and consider the correctness of 
such an assignment to be very questionable, and consequently I 
have placed the species in the genus Coccus, though from our 
present knowledge of the genera of the Coccine there is little 
more to be said in favor of its location here than in Ctenochiton. 
The species itself appears to be a very distinct one, and there 
should be little danger of confusing it with other species that 
have been assigned to Coccus. The most conspicuous characters 
are the external appearance, the size and shape of the marginal 
sete, the number and size of the spiracular spines, and the 
- numerous dorsal sete on the anal plates. The types are in the 
United States National collection of Coccide. 
Coccus penangensis sp. nov. 
Adult female.—Normally short oval, flat, dorsal surface dull, 
naked, wrinkled radially near margin, outer. portion light brown, 
central disk usually much darker brown to blackish; maximum 
length, about 2.5 millimeters ; width, a little less than 2; mounted 
