48 
extending a little beyond. Knobs distinct. Antenna' short and stout, 
7 -jointed; 3 much, longest, 4 and 6 equal and shortest; 2 and 5 about 
equal, also 1 and 7; formula 3 (7,1) (2,5) (4,6); 1, 2, and 4 broader 
than long; 5 about as long as broad. 
Habitat. — Tokio, Japan, on mulberry. (Takahashi; Div.Ent.Dept. 
Agr. Xo. 5821.) 
Pulvinaria aurantii n. sp. 
Female, with white cottony ovisac, scattered over under surface of 
leaf, looking just like P. psidii Mask. The ovisac is about 5 mm. long, 
irregular or suboval in shape. The shriveled female is ochreous or 
greenish. Marginal spines numerous, unusually long, quite strong, never 
branched. Spines of lateral incisions in threes, two small, one large. 
Rostral loop extremely short. Anal plates together forming about a 
square. Anogenital ring with numerous hairs. Legs ordinary; tarsus 
much shorter than tibia; tibia with a very long hair near its end, and a 
shorter one proximad. Claw short, blunt, curved; digitules of claw 
very large and stout, with large knobs. Knobs abrupt; stalk compara- 
tively slender, but bulbous at base. Antennae 8 jointed ; :>. longest, but 
not much so; 2, 4, 5, and 8 subequal; 5 seems a little longer than 4; 6 
and 7 equal and shortest; 5 with a very long hair. 
Habitat. — Tokio, Japan, on orange. (Takahashi; Div. Ent. Dept. Agr. 
No. 5941.) 
This species looks just like P. psidii Mask., and I had almost taken 
it for granted that it was that species. Microscopic examination, how- 
ever, at once reveals striking differences, especially in the marginal 
spines, so that there can be no question about the distinctness of the 
Japanese form. The following notes on P. psidii will serve for com- 
parison and to amplify the published account of that species: 
Pulvinaria psidii Maskell. 
(1) Material from Maskell, from type locality, Sandwich Islands. 
Marginal spines very much smaller and more numerous than in 
aurantii, easily broken off. Those near lateral incisions rather larger 
than the rest, and broadened and serrate at the ends. Three spines in 
lateral incisions, one long, two short, as in aurantii. Femur and tro- 
chanter distinctly longer than corresponding parts of aurantii. Tibia 
with only a short hair near end. 
(2) Material from E. E. Green, found in Ceylon. 
Shows similar short spines, which tend to enlarge and branch at ends. 
Anal plates together form about a square. Anogenital ring with six 
long stout hairs. Trochanter with a very long bristle; coxa with two 
rather short bristles, one shorter than the other. Tibia with a moder- 
ately long hair near end. Claw short and curved; digitules of claw 
practically as in aurantii, but knob hardly so abrupt. Antennae 
8-jointed; 3 very much the longest; 4 decidedly longer than 5; 6 and 7 
