SCALE INSECTS (" COCCIDiE ") OF AUSTRALIA. 



107 



covei;ing the dorsal surface, together with a more felted mass, covering the 

 ovisac, which is like that of Pulvinaria. Antannae composed of nine joints ; 

 the first short, second longest, succeeding ones smaller, with the terminal 

 one as long as the fourth ; the fourth to sixth slender. Feet long, slender, 

 tarsi with fine hairs ; no digitules on the claw. Anal tubercles very small ; 

 anal ring with six hairs. Epidermis \\ath groups of conical spines ; circular 

 spinnerets on either side, and scattered over the dorsal surface of the abdo- 

 minal segments. 



According to Cockerell, the species described from Mauritius by M. 

 d'Emmerer de Charmoy on Solanum under the name of Phenococcus nivalis, 

 is a distinct species and not this coccid. 



410. Phenococcus nivalis. Cat. Coccidse, p. 92. 



P'ieudococcus stolatus, n.sp. (Fig. 72). 

 This species is not uncommon on the small branchlets of the scrub tree knowi 

 as the dogwood {Myoporum desert i), thickh' 

 coating the bark with their oval white sacs. I 

 have it from Cobar, Dubbo, Condobolin, and 

 Bourke districts, New South Wales. This 

 species was determined by Mr. E. E. Green. 



Adult female enclosed in an oval sac of 

 light biscuit-brown colour, felted, distinctly 

 ribbed with transverse lines as if marking 

 the segmental divisions of the coccid be- 

 neath; often covered with white mealy 

 secretion and the margins fringed with 

 short fingers of white woolly filaments, with 

 a circular anal aperture. 



In the small immature females the 

 whole surface is clothed with tufts of 

 white filaments, and they look like some 

 of the mealy bugs of the genus Icerya. 



Adult female elongate, elliptical, pale yellowish brown. Length, ^ of an 

 inch; antennae long, composed of nine joints; first short broad, second 

 cylindrical, third slightly longer, fourth to seventh about equal length, 

 eighth longer; ninth slightly longer than the eighth, rounded at tip Mith 

 scattered hairs. Feet long slender, tarsus with hairs on either side, two 

 short clubbed digitules. Anal ring with six hairs ; anal tubercles small, 

 inconspicuous; epidermis thickly covered with circular spinnerets, short 

 rod-like processes, and short blunt spines, the latter forming groups on the 

 edge of the abdominal segments. 



Fig. 72. — Fseiuiocoi'cusi st }latut 



