Jan. 15, 1925 
Scale Insects of the Subfamily Ortheziinae 
123 
the eye slightly protruding; legs not 
unusual for the genus, fairly slender, 
tarsal claw with 1 or 2 indistinct den¬ 
ticles on the inner face; beak short, 
stout conical, 1-segmented, without 
definite indication of any subdivision; 
thoracic spiracles entirely character¬ 
istic for the genus, each surrounded by a 
spine cluster and with a fairly dis¬ 
tinct band of spines about its opening; 
with 7 pairs of long tubular abdominal 
spiracles; derm pores of the quadrilo- 
cular disk type only, these very dis¬ 
tinctly present in two sizes, the smaller 
hardly more than half the size of the 
larger; with a few slender setae scat¬ 
tered over the body surface, these 
more abundant in the ventral area en¬ 
closed by the ovisac band; derm spines 
occurring in the usual 11 marginal and 
10 dorsal clusters, with a distinct and 
broad clear area in the derm widely 
separating corresponding marginal and 
dorsal bands; ovisac band broad and 
heavy, made up of numerous spines 
and with a considerable number of 
pores scattered through the inner one- 
half to two-thirds of the band; band 
inclosing 5 transverse bands of scat¬ 
tered spines, each band of moderate 
width and extending well towards but 
not reaching the inner margin of the 
ovisac band; anal ring rather elongate 
oval, the pore bands on each half rela¬ 
tively narrow, not very heavily chiti- 
nized, usually united or nearly so an¬ 
teriorly, but more widely separated 
posteriorly, the inner margins not 
sharply angulate anteriorly and poster¬ 
iorly as in many species of the genus, 
with the usual 6 tapering setae. 
This species has been redescribed 
from the following material: Mesilla 
Park, N. Mex., on grass (Gramineae), 
coll. J. D. Tinsley, September 26-7, 
1897 (type); Dona Ana, N. Mex., on 
grass, coll. C. H. T. Townsend, Sep¬ 
tember 26, 1897. Published records 
for the species include Marshall Co., 
Kans., on Solidago sp. (Compositae), 
and Los Angeles Co., Calif., on a 
perennial grass. A number of speci¬ 
mens previously determined as gra- 
minis are included under pseudogra- 
minis subsequently described as new. 
ORTHIZIA GRANDIS HEMPEL 
Figs. 5, J, and 7, G; PI. 1,F 
Reference. —Hempel, 1920 (re¬ 
ceived 1921), Rev. Mus. Paulista 12: 
342-343, 365-367. 
Through the courtesy of the de- 
scriber of this species, and of the Museo 
Paulista, the present writer has been 
permitted to examine specimens from 
the type material, and it has been in¬ 
cluded in the key on the basis of this 
examination. The mount obtained 
from the single adult female received 
was unfortunately not sufficiently sat¬ 
isfactory to permit the preparation of 
a figure showing the spine groups or to 
permit an adequate redescription com¬ 
parable to those given for other species 
discussed in this paper. 
This species was collected near Sao 
Paulo, Brazil, on Guadua distorta Rupr. 
? (Gramineae). 
ORTHEZIA INSIGNIS DOUGLAS 
Figs. 3, J; 5, K; 17, and 18; PI. 1, H 
Reference. —Douglas, 1887, Ent. 
Mo. Mag. 24:95-101, 165-171, illus. 
Synonym. —Orthezia nacra Buckton 
(see Fernald, 1903, Cat. Cocc. World, 
p. 34). 
Fig. 17 .—Orthezia insignis: Adult female, body, 
dorsal and ventral; X about 31 
Adult female. —Body almost uni¬ 
formly oval; secretion very much re¬ 
duced, occurring laterally in the usual 
fashion, except that the anterior plates 
are much reduced in size and the pos¬ 
terior marginal plates rather elongate 
and slender, but present dorsally only 
as 2 median longitudinal rows of small 
tufts, closely approximated anteriorly 
and posteriorly, but somewhat separ¬ 
ated about the middle of the body, 
leaving a broad, dull-green bare area 
running the full length of the body on 
each side between the marginal and 
median rows, and a much smaller, oval, 
similarly bare area medially; apices of 
anterior dorsal plates also separated, 
leaving another median bare area at 
the apex of the head; ovisac variable 
in length, somewhat narrowed poster¬ 
iorly, more or less distinctly ribbed dor- 
sally and sometimes nearly twice the 
