68 SCIENCE BULLETIN, No. 18. 



Genus XXIX. Cerococcus, Comstock. 



Report United States Dep. Agriculture, p. 213. 1882. 

 Solenophora, Maskell, Trans. N. Zealand Institute, p. 139. 1889. 

 Solenococcus, Cockerell, Check List, supp., p. 392. Note, 1899. 

 Solenococcus, Cockerell, Canadian Entomologist, vol. xxxi, p. 276. 1899. 

 Antecerococcus, Green, Pro. Linn. Soc. N. S. Wales, p. 560. 1900. 

 Cerococcus, Comstock, Beport U.S. Dep. Agriculture, p. 213. 1882. 

 Cerococcus, Scott, Trans. Linn. Soc., London, vol. ix, p. 445. 1907. 

 Cerococcus, Green, Coccidce of Ceylon, part iv, p. 305. 1909. 



The female coccids of this genus form curious waxy tests, sometimes 

 covered with tufts and spiny projections of secretion, produced at the anal 

 extremity into a short tube surrounding the apical opening. 



Green says : " Adult female insect with the terminal abdominal segments 

 usually abruptly narrowed. The extremity with two stout spiniferous lobes 

 each bearing a longish seta; the interno- ventral aspect of the lobes more 

 aensely chitinous ; a prominent median triangular plate on the dorsal aspect ; 

 anal ring with eight stout hairs ; antennae rudimentary. Limbs rudimentary 

 or absent. Mentum dimerous. Derm with conspicuous paired (8-shaped) 

 glands. Cribiform plates present in the dorsal surface of the abdomen. 

 No stigmatic spines. 



Male puparium with a large oval or circular operculum above the posterior 

 extremity." 



This is a small genus, the members of which are described from California, 

 Mexico, India, Ceylon, New Zealand, and Australia. In Mrs. Fernald's 

 catalogue four species are listed, but with the addition of Green's species 

 from Ceylon and the new ones here described from Australia, the members 

 of the genus are more than doubled. 



Cerococcus auranticus, n.sp. (Fig. 43). 



This beautiful species was originally discovered by me at Bando Station, 

 near Gunnedah, New South Wales, upon the twigs of the native blackthorn 

 {Busaria spinosa) ; since then they have been found at Lakemba, near Sydney, 

 on the same shrub. This coccid was determined by Mr. E. E. Green. 



Test of adult female formed of a stout coat of reddish orange waxy secre- 

 tion with the funnel-shaped apical tube, spots on surface, and four spine-like 

 tufts pale yellow. General form broadly oval, tapering on the hind margin, 

 where it is produced into a circular tube round the anal opening. Length, 

 iV of an inch. 



Male tests scattered about among the female tests, pale, bright yellow, 

 mottled with red, elongate, rounded in front, cylindrical or slipper-shaped, 

 with the hind portion truncated, with a pale yellow flap. Length, w of an 

 inch. 



