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Lecaniodiaspis (Prosopophora) quercus n. sp. 
Adult female. — Scales numerous on twigs. Long. 3 J, lat. 2£, alt. 2 J 
mm. Pale oehreous, obscurely carinate, segmentation fairly evident. 
Boiled in caustic potash, they turn it sherry color. Female (after boil- 
ing), dark reddish brown. Antennae 7 -join ted, the joints cylindrical; 1 
shortest, much broader than long ; then G and 7 subequal, much longer 
than broad ; then the other four subequal, but 3 rather longer than 2. 
Formula (3, 4) (2, 5) (6, 7) 1. Derm with numerous gland orifices and 
false spines, as usual in genus; derm has a finely marbled appearance, 
due to minute wrinkles. Margin with a few, short, true spines. Ano- 
geuital ring and other characters as usual in the genus. Legs, of 
course, wanting. 
Young larva (squeezed out of the transparent egg-shell) pale pink, 
rostral filaments curled in two watch-spring-like coils. Antennae 
0-jointed, 2, 3, and 6 subequal and longest. Legs stout, femur about 
as long as tibia and tarsus. Coxa quite large. Trochanter with two 
strong curved bristles. Tibia with a long curved bristle on its inner 
face; tarsus with a small bristle on its inner face. Claw hooked at 
end; digitules filiform, well developed; tarsal digitules long. Caudal 
filaments bent back, not nearly reaching insection of last pair of legs. 
Anogenital ring with distinct hairs. 
Habitat. — Tokio, Japan, on Quercus sp. (Takahashi; Div. Ent. Dept. 
Agr. No. 5940.) 
This species very much resembles rufescens, but is more convex. The 
occurrence of two species so closely allied, of a peculiar genus, in Japan 
and New Mexico respectively, is very interesting; similar instances 
in other groups are known, especially those pointed out by Asa Gray 
among plants. The conclusion is that we have to do with an old type, 
which formerly occupied more territory than at present. 
Signoret remarked that L. sardoa much resembled Eriococcus buxi 
in superficial appearance. L. quercus is about the color of the sacs of 
Eriococcus eucalypti Mask., and might easily be taken at a glance for 
an Eriococcus. 
Aspidiotus secretus n. sp. 
Female scale. — White, shiny ; exuviae exposed, shiny, rather large, very 
pale yellow, placed rather to one side. 
Immature female (boiled in potash) almost colorless, terminal portion 
brownish; outline nearly round; mouth-parts far posterior, almost as 
in a Parlatoria. No groups of ventral glands. Lobes and spines pres- 
ent, but no plates. Three pairs of lobes; median large, strongly 
diverging, pyramidal in outline, rounded at ends. On the rapidly 
descending distal side of each median lobe, at the base, is a small tri- 
angular projection. Second lobes separated from this triangular pro- 
jection by a space about equal to their width. Second lobes smaller 
than median, but well developed, notched on each side at end so as 
