Jan. 15, 1925 
Scale Insects of the Subfamily Ortheziinae 
133 
species, it has been possible to ascer¬ 
tain that these specimens are actually 
identical with his species, although his 
description should be corrected with 
respect to these tw 7 o points in its 
structure. In having the dorsal spine 
clusters that are present of very small 
size and in two longitudinal row r s on 
the abdomen, the species resembles 
moniicola and insignis, from which it 
can be definitely separated, not only 
by the incompleteness of the dorsal 
spine rows and secretion, but by the 
presence of 8 pairs of abdominal spira¬ 
cles. 
This species has been redescribed 
from tw T o mounted adult females, 
one unmounted female, and several 
mounted larvae collected by H. 8. 
Barber and Dr. E. A. Schw r arz in the 
Santa Rita Mountains, Ariz., June 
14, 1905, on an unknown host. The 
type, specimens of the species were 
collected near Benson, Ariz., on Quercus 
emoryi (Fagaceae) by Prof. Ferris, 
June, 1918. 
ORTHEZIA OLIVACEA COCKERELL 
Figs. 3, R; 6, F; 7, L; and 26 
Reference. —Cockerell, 1905, 
Canad. Ent. 37: 136. 
Adult female. —No specimens 
available for description of external 
appearance, the following, therefore, 
copied from the original description: 
“Length about 2.5 mm., wdth cauda 
rather over 3 mm., legs and antennae 
reddish-brown. Body entirely covered 
with dense wiiite secretion; dorsal 
line marked by a deep groove, with no 
median tufts; the two dorsal rows of 
lamellae thick and obtuse, the first pair 
overlapping head, but not projecting 
far forward; area between dorsal and 
lateral lamellae covered by secretion; 
lateral lamellae broad, the anterior 
three truncate, the others more pointed, 
the points curved inward; caudal 
lamellae surpassing last lateral ones, 
but not very long. Body denuded of 
lamellae dark olivaceous.” Length of 
body as mounted about 2.25 milli¬ 
meters, width 1.75 millimeters, uni¬ 
formly oval; derm membranous; an¬ 
tennae normally 7-segmented, lengths 
of one in microns as follows: i, 96; 
II, 89; III, 93; IV, 50; V, 50; VI, 46; 
VII, 139; spine, 21; eyestalk very small, 
flattened, the eyespot occupying most 
of the tuberculate center; legs rather 
small, fairly stout; setae slender, tarsal 
claw with 2 or 3 fairly distinct denticles 
on the inner face; beak stout conical, 
1 -segmented, but with a rather distinct 
suggestion of a joint near the base; 
thoracic spiracles characteristic for the 
genus, each opening within a spine 
cluster and this opening surrounded 
by a rather definite collar of somewhat 
smaller and shorter spines; with 8 
pairs of long tubular abdominal spir¬ 
acles; with the usual quadrilocular 
disk type of pores only, these occurring 
both dorsally and ventrally, mostly 
not heavily chitinized, very abundant 
in the posterior portion of the area 
inclosed by the ovisac band; derm wdth 
a few scattered setae both dorsally and 
ventrally; derm spines arranged in the 
usual 11 marginal and 10 dorsal clus¬ 
ters, about as shown in figure, the 
dorsal bands fully developed and ex¬ 
tending almost to the corresponding 
marginal bands on each side; ovisac 
band stout, made up of spines with 
disk pores along the anterior margin, 
with a scattered row of distinctly 
smaller disk pores just within the inner 
margin of the band; inclosing 5 trans¬ 
verse bands of spines, the 3 anterior 
of these broad and extending fully to 
the ovisac band on each side; anal ring 
stout oval, the pores on each half pro¬ 
duced within anteriorly and posteriorly 
but not angularly, meeting anteriorly 
but slightly separated behind; ring 
with the usual 6 rather long setae; 
with tiny hemispherical tubercles scat¬ 
tered through the areas between the 
spine clusters on each side of the anal 
ring, both dorsally and ventrally. 
This species has been redescribed 
from the following material: From 
