18 



SCIENCE BULLETIN, No. 19. 



Sphaerococcus stypheliae, Maskell (Fig. 12). 

 Trans. N.Z. Institute, vol. xxvii, p. 67, pi. vii, f. 1-4, 1894. 



Tlii.s species was collected on the twigs uf Htijplidia {Moii.otica) elliptica, 

 growing at Rose Bay, near Sydney. 



The adult females are enveloped in a seniiglo- 

 l)ular roughened mass of yellowish waxy secretion, 

 slightly tinted with pink, and often blackened 

 ■vith fumagine. Diameter, about one-twentieth of 

 an inch. 



Adult female convex, with the ventral surface 

 flattened, filling the whole test : general colour 

 dark brown or purple. Antennae aborted, but 

 while the feet are wanting, they are replaced by 

 six swollen short tubular processes like the lac tubes 

 of Tachardia. Epidermis covered with numbers of 

 circular spinneret orifices. 



380. Sjyhaerococcus stypheliae. Cat. Coccidae, p. 87. 



Sphaerococcus socilis, Maskell. 

 Trans. N.Z. Institute, vol. xxix, p. 325, pi. xxii, f. 1-7, 1897. 

 These coccids produce globular galls of imbri- 

 Fig. 12. -sphaeroconms stupheiiae. cated scales (like little pine cone'^) of a greyish 

 green colour, varying in hize from a pin's head to 

 lialf an inch in diameter. They grow upon the twigs of an undetermined 

 species of Melaleuca at Greraldton, West Australia. 



Each gall when cut across shows a central cell with smaller galls sur- 

 rounding it, so that it is reall}' an outer shell covering a group of smaller 

 galls, each containing a number of coccids in all stages of development. 



The adult female is dark red, globular, with very small antennre tipped 

 Avith fine hairs, legs aborted, with the epidermis bearing large tubelar s})iracles. 



.379. Sphaerococcus socilis. Cat. Coccidsc, p. 87. 



Sphaerococcus tepperi, Fidler. 

 Journal of Bureau Agriculture, West Australia, p. 1346, 1897. 

 Trans. Ent. Soc. London, p. 449, pi. xv, f. 16, 1899. 



A species described by Fuller, which appears to be closely allied to S. 

 socilis, coming froni the same locality, and on a similar food plant. The 

 differences, given by the author, are that the adidt female coccid is smaller, 

 differs in colour, and possesses a pair of aborted hind legs. The gall is 

 apparently very like tliat of Maskeirs species. 



382. Sphaer.ococcus tepperi. Cat. Coccidee, p. 87. 



