Haskell. — On Coccididae. 237 



mind that I have decided upon erecting this new subdivision, 

 and placing therein the new species discovered during the past 

 year. 



Genus Sprerococcus, Haskell. N.Z. Trans., vol. xxiv., 



1891, p. 39. 



Adult females naked, or producing cotton or wax. Anal 

 tubercles absent ; anogenital ring hairless. Antennae of usually 

 less than seven joints, sometimes atrophied. Feet sometimes 

 absent, sometimes atrophied, sometimes deformed. 



Adult male unknown. 



Last year I was not prepared to attach any definite 

 characters to this genus. Even now, though I am including 

 three more species in it, I am compelled to leave the charac- 

 ters thus vague and general, in order to avoid erecting a new 

 genus to suit each one. 



Sphserococcus acaciae, sp. now Plate XVI., figs. 6-11. 



Adult female covered with white cotton, which singly is 

 globular, but may be aggregated in masses. Insect globular, 

 dark-brown ; diameter about iin. Antennae and feet absent. 

 Anogenital ring very small and difficult to detect, simple, 

 hairless ; anal tubercles absent. Epidermis bearing numbers 

 of minute tubular spinnerets ; and on the median dorsal region 

 a great many small clear oval markings. Spiracles large. 



Female of the second stage not observed. 



Larva brown, flatfish, elliptical ; length about ^in. When 

 observed within the body of the mother it is seen to have 

 antennas of four moderately long subequal joints, on the last 

 of which are two long hairs ; after emergence the joints become 

 shorter and rather confused, but the joints and hairs may still 

 be made out. Feet thick and clumsy, the joints swollen ; 

 claw very small ; the digitules seem to be all fine hairs. 

 Hargin bearing some very slender spines. Anal tubercles 

 absent or atrophied, but there are the usual two terminal 

 setae. 



Hale unknown. 



Hab. In Australia, on Acacia sp. Specimens sent by Mr. 

 A. S. Olliff, from Queanbeyan, New South Wales. 



This insect is allied to S. casuarince, Hask., reported last 

 year, but differs quite sufficiently for specific separation. 



Sphaerococcus bambusse, sp. nov. Plate XVI., figs. 12-19. 

 Adult female producing white cotton, which forms a cushion 

 under it and sometimes partially covers it ; this cotton fre- 

 quently appears quite hard and solid. Insect dark-brown, 

 elongated, slightly convex, usually tapering somewhat pos- 

 teriorly ; the cephalic region is very large, the abdominal 



