Maskell. — On Coccididae. 235 



The form of the antenna of the female, nine-jointed, and 

 more slender in the middle than at either end, is characteristic 

 of the genus. The species differs slightly from any hitherto 

 reported. 



Pseudococcus casuarinae, sp. nov. Plate XVI., fig. 5. 



Adult female covered with a quantity of white cotton, which 

 has normally a globular form, but is often aggregated in 

 masses ; there seems to be no posterior ovisac. Insect 

 yellowish-brown, elliptical, slightly convex; length about iin., 

 but shrivelling at gestation. Antennae of nine joints, of 

 which the second is much the longest (as long as any two 

 others), the rest gradually diminishing to the eighth, the 

 ninth as long as the sixth. The fourth, fifth, and sixth are 

 the most slender. Feet rather long and strong ; tarsal digi- 

 tules fine hairs. There is no lower pair on the claw. Anal 

 tubercles very small; anogenital ring with six hairs. Epi- 

 dermis bearing large numbers of small circular spinnerets and 

 short fine hairs, and on the margin of each segment at each 

 side is a group of orifices mingled with conical spines. 



Female of the second stage not observed. 



Larva brown, flatfish, elliptical ; length about ^-in. An- 

 tennae of six rather thick joints, the sixth much the longest, 

 the rest subequal. Anal tubercles small, setiferous. 



Male unknown. 



Hab. In Australia, on Casuarina sp. Specimens from Mr. 

 Lidgett, of Myrniong, Victoria. 



Genus Eipeesia, Signoret. 

 Ripersia leptospermi, Maskell. Trans. Eoy. Soc. South 



Australia, 1887-88, p, 106. Plate XVII., fig. 6. 



Female of the second stage dark-red, with white cotton and 

 meal ; form flatfish, elongated, broadest posteriorly ; conspi- 

 cuously segmented ; length about -Jgin. Antennae of six 

 joints, of which the third is as long as all the rest together. 

 Feet long ; the tibia is longer than the tarsus. Anal tubercles 

 rather small, convergent, setiferous. Margin of body rough 

 with numbers of thick tubular spinnerets with wide bases and 

 slightly tapering, as in the adult, and others similar are 

 scattered on the dorsum. 



Male pupa covered with white cotton. 



Adult male red ; wings grey ; length of body about ^in. 

 Antennae of ten joints, the last four rather thick and short. 

 Dorsal eyes two, ventral eyes two, ocelli two. 



Hab. In Australia, on Lcptospcrmum sp. The specimens 

 here described were sent by Mr. Koebele from Sydney. 



When I described, in 1887, the adult female and the larva 

 of this species, I had not seen the second stage or the male. 



