6 MISC. PUBLICATION 344, U. S. DEPT. OF AGRICULTURE 
fringe along the remaining abdominal segments. Details of shape 
and size are given in the discussion of the different species and within 
limits appear to be useful accessory characters in differentiating the 
species, 
PARAGENITALS 
All the species here discussed have clusters of small multilocular 
disk pores in the usual position on the ventral surface of the pygid- 
ium. Most frequently four groups or clusters of these pores are 
present. Some species normally have five groups; some have four 
groups, with an occasional specimen showing a fifth, anterior median 
group; and one species has the two clusters on each side consolidated 
into an elongated, medially constricted band so that it character- 
istically has only two groups of paragenitals instead of four. The 
number of pores in each group and the total number present on a 
specimen vary materially within a species, but tend to average into a 
more or less characteristic condition for the species. As examples, 
camelliae may have as few as 19 pores in four groups, while banksiae 
may have as many as 113 in five groups. 
OTHER CHARACTERS 
Mention should be made here of a structural modification occur- 
ring in only one species. Parlatoria banksiae appears to lack con- 
sistently a marginal macroduct between the median lobes of the pygid- 
ium. All the other s species discussed have this in normal specimens. 
Anatomical characters which have not been given critical consid- | 
eration in this study, but which might possess elements of taxonomic 
significance, include the antennae, all ventral duets and pores except 
the paragenitals, all setae, sclerotic areas of the pygidium other than 
the flecks discussed above, and perhaps others. 
No study has been made of the second-stage female, the first-stage | 
larva, or any of the male stages of these species, nor has an attempt | 
been ‘made to redescribe the scale coverings, but the normal char- | 
acteristics of these for each species should be recognizable from the 
photographic illustrations included in this publication. 
DESCRIPTIONS OF SPECIES 
PARLATORIA BANKSIAE (Maskell) 
(RES Ay spline v4es ple OsrAe) 
This species, one ae described in the genus J/ytilaspis by 
Maskell (38, P. 3SS),° was transferred to Parlatoria i in 1903 by Leon- 
ardi (33, p. 21), but the shift apparently was overlooked by Froggatt 
(21, p. 606) in the preparation of his catalog of Australian Coccidae. 
The species belongs clearly in Parlatoria as here accepted. 
Adult female——Hyespot a tiny, irregularly rounded, sclerotized disk, easily 
overlooked but staining distinctly. Each anterior spiracle accompanied by 3 
to 6 disk pores; each posterior spiracle with an inconspicuous dernral pocket, 
located much nearer to spiracle than to body margin. Duct tubercles of 
medium size but relatively acutely conical, bases not expanded; numbers in 
specimens tabulated as follows: Prespiracular 2 to 4, anterior spiracular 6 to 
9, intermediate 0 to 1, posterior spiracular 1 to 38, first abdominal 1 to 38. No 
’ Italic numbers in parentheses refer to Literature Cited, p. 31. 
j 
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