16 PROCEEDINGS OF THE NATIONAL, MUSEUM. yol. 60, 



large, heavily chitinized, simple, clear pores, multilocular disk pores 

 similar in appearance to those found in Pseudococcus^ triangular 

 pores, similar in appearance to those of Pseudococcus under low 

 magnification, but showing three additional, smaller, loculi when 

 greatly enlarged, and finally the evaginated cylindrical tubes, con- 

 stricted and with a very muoh smaller finger-like prolongation 

 of the apex, these last grouped with the large submarginal setae; 

 derm both dorsally and ventrally with numerous setae, varying 

 greatly in size, and in the abdominal region, at least,, arranged in 

 transverse segmental bands, with a much larger seta on each margin, 

 then setae not quite so large, in transverse groups of about three or 

 four placed just within the margin and united hy a small chitinized 

 patch, and finally slightly smaller setae singly to the number of two 

 or three on each half of each segment; mentum distinctly 3-seg- 

 mented, but the two basal segments not so conspicuously separated 

 as indicated by Maskell's figure. 



Intermediate stages. — None available for study; apparently un- 

 known. 



Larva. — Elongate, tapering at ends; antennae T-segmented with 

 two curved setae on apical segment and one on preapical ; legs rather 

 stout, claw with denticle and two digitules; tarsal digitules not 

 differentiated ; mentum 3-segmented ; anal ring and setae much as in 

 adult; long marginal and dorsal setae present as in adult, but the 

 latter less numerous ; these accompanied by the tiny tubular protuber- 

 erances of the adult ; dorsum, so far as can be determined, only with 

 triangular pores ; venter, so far as can be determined, only with mul- 

 tilocular disk pores. 



Male adult. — While the eyes of this stage are aggregated into two 

 linear groups, as described and figured by Maskell, there seems to be 

 some doubt as to the propriety of characterizing them as compound ; 

 from the specimens available, little or nothing can be added to 

 Maskell's description of this stage. 



This very peculiar species has no near relatives, so far as the writers 

 are aware, and in spite of a careful study of the limited material 

 available, it has not been possible to link it definitely with any of the 

 larger groups now known to exist in the family. There is much in 

 the general appearance, the kinds of pores, the development and char- 

 acter of the anal ring, and the development of what may be termed 

 pseudo-cerarii, in that they serve as supports for lateral tassels, to 

 suggest a relationship with the Pseudococcus group of genera. The 

 number of antennal segments, the absence of dorsal ostioles, and the 

 absence of definite cerarii seem to be sufficient to eliminate any close 

 relationship with the mealy-bugs, however. Similarly, the number 

 of antennal segments, the dense hairiness of these, as well as of the 



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