40 PROCEEDINGS OF THE NATIONAL MUSEUM. VoL. 62. 
rarely quadrilocular centers, these less numerous than the stout spines; 
derm with two sorts of spines, the first large and stout, tapering, with 
rounded tips, the second much smaller, slender, strongly swollen at 
bases, tapering to the middle and with the apical half somwhat cla- 
vate, these somewhat less numerous than the first; with slender 
setae with ring-like basal collar, these scattered and less numerous 
than the preceding; anal tube well developed but not so complicated 
as in the corresponding stage of zealandicum, without pore collar at 
opening, with a single circle of multilocular disk pores about a third of 
the length from the apex, and with a broad band of irregular wax pores 
at inner end; ventral cicatrices present, not numerous for this group, 
occurring ventrally on both thorax and abdomen, in more or less dis- 
tinct transverse rows on the latter, these rows ending at each side in 
a cluster of larger circles, these clusters placed in line posterior to 
hind legs. 
Larva.—Not known. Maskell’s slide of “larva, 1889,” that ot some 
species of the genus Pseudococcus. 
Cotype.—Cat. No. 25275, U.S.N.M. 
In spite of the existence of a number of rather conspicuous differ- 
ences between the intermediate stages of this species and C. zeal- 
andica, they appear to the writers to be probably congeneric. The 
close similarity in the general appearance of the adults and in the 
structural characters of the antennae, legs, spiracles, derm pores and 
setae, and anal tube of this stage of the two species, and the similar- 
ity of the general characters of che intermediate stage, such as shape, 
enclosure within a protective covering, consequent modification of 
the anal tube, development of numerous cicatrices, reduction of an- 
tennae and legs, character of spiracles, and similarity of derm pores, 
appear to indicate a degree of relationship sufficient, in the present 
state of our knowledge of the group, to permit the inclusion of these 
two species in a single genus. The conspicuous differences lie in the 
intermediate stages in the pronounced development of the derm 
spines in pilosior, the reduction in the chitinization of the derm pores, 
the much smaller number of cicatrices and the lesser development of 
the spiracles; and apparently in the adults in the greater number of 
ventral spines on tibia and tarsus in zealandica, and perhaps in other 
characters. It is very unfortunate that there is no true larva of 
pilosa available for examination, as this stage would help materially 
in determining the generic relationship existing between these two 
species. The generic diagnosis previously based on C. zealandica at. 
present needs modification only with respect to the derm spines and 
setae and the anal tube in the intermediate stage female. The state- 
ment “‘no ventral cicatrices’”’ should also be changed, as it is now 
believed that the large simple circular disk pores correspond to the 
ventral cicatrices found in some other genera. 
