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large; legs present. Body terminating in a pair of prominent 
S S y 5 I 
anal lobes with a stout sabertooth-like spine at the extremity of 
each lobe. Derm with trilocular pores. Anal ring setiferous. 
Type of the genus Geococcus radicum Green. 
A monotypical genus described from Ceylon and, according 
to Green (loc. cit.), not known elsewhere except in Hawait. 
Mr. Ehrhorn, however, has called my attention to the similarity 
of Kuwana’s Ripersia oryzae (Bul. Imp. Cent. Ag. Exp. Sta., 1, 
p. 186, 1907), described from Japanese material collected on the 
roots of rice and other plants, and in Ent. Mo. Mag., LIX, 
p. 18, January, 1923, the species is said to occur in the West 
Indies. The species is fairly common in Hawaii, in a more or 
less complete pulverulent white waxy sac on the roots of plants 
(koa, mango, nut-grass, etc.), but of no great significance eco- 
nomically. A good figure and description of the insect is fur- 
nished in a paper by the author published in Proc. Haw. Ent. 
Soc., II, p. 108. Green, in his recently published Pt. V of the 
Coccidae of Ceylon, also gives excellent figures and redescribes 
the insect in much detail. No mention, however, has heretofore 
been made of the chitinized strip of the derm at the margin of 
the penultimate segment extending inward obliquely and_ bear- 
ing two prominent setae. It is quite plain in stained specimens. 
Green's figures also fail to show the accessory spines in the 
adult, although present in the nymph. It is possible that the 
Hawaiian forms so far observed have all been immature. 
GENUS FERRISIA Novum. 
Characterized for the reception of the species hitherto passing 
under the name of Pseudococcus virgatus. A pseudococcine 
form without a tooth or denticle on the face of the tarsal claw 
and with eight-segmented antennae, but differing from typical 
species of Pseudococcus by having only a single pair of cerarii, 
situated on the anal lobes, and by the possession of numerous 
peculiar wax ducts, which are unusually large and have their 
mouths surrounded by a small chitinized area bearing one to 
four small setae. 
Type of the genus Pseudococcus virgatus (CkIl.). 
This is a tropical species with a wide distribution. The facts 
with regard to this so far elicited have warranted Timberlake's 
