8 SCIENCE BULLETIN, No. 18. 



Pulvinaria dariviniensis, n.sp. 

 The type specimens were collected by Mr. F. G. Hill upon Caladium, sp., 

 gro\ving near Port Darwin, Northern Territory. This is a well defined 

 species, though the females are not quite adult. 



Female dull yellow, central portion darkest, margins lightest, resting upon 

 a pad of soft white woolly secretion, with the ovisacs pure white composed 

 of soft woolly filaments without any defined pattern extending beyond ; the 

 female slightly broader, round to the apex. Length of female, iV inch ; with 

 ovisac, y inch. 



Female broadly elongate ; rounded at both extremites ; slightly contiatted 

 at cephalic portion ; somewhat flattened, probably convex when alive ; aral 

 segment broadly divided by a wedge-shaped cleft; anal opening apparently 

 large. Antennse long, slender, eight-jointed; first short, broad; second 

 and third nearly uniform; fourth to seventh tapering, with the eighth 

 slightly longer and pointed; legs well developed; thighs of foie pair large, 

 tarsal joint long, tarsal claw large. 



Pulvinaria dodon<ece, Maskell. 

 Trans. N. Zealand Inst., vol. xxv, p. 222, pi. xiii, figs. 8-9, 1892. 

 This coccid was described from South Australia upon the foliage of 

 Dodoncea hursarifolia and Myoporum, sp. 



Maskell says : " The adult female is reddish brown, darkening with age. 

 Before gestation the form is regularly elliptical, flattish or slightly convex, 

 and has the appearance of a full-grown Lecanium ; as she shiivels up she 

 simply becomes a brown speck in a mass of cottony secretion. The varia- 

 tions in size and colour render it somewhat difficult to identify. Adult 

 female, ^ to -^V inch in length; ovisac, ^ inch. 



656. Pulvinaria dodoncece. Cat. Coccidse, p. 132. 



Pulvinaria flavicans, Maskell. 

 Trans. Royal Society, S. Atistralia, p. 103, pi. xii, f. 3, 1888. 

 Cockerell, Pro. Academy, Nat. Sciences, Phil., p. 272. 1899. 



Specimens described on the foliage of an undetermined native plant from 

 South Australia. 



" Adult female yellowish brown, not globular or g^ll-like, slightly convex, 

 rugose, outline sub-elliptical, naked, but producing an ovisac, upon which 

 it rests. A fringe of short spines, very close together, right roimd the margin 

 Antennse apparently eight-jointed. Legs well developed." 



666. Pulvinaria flavicans. Cat. Coccidse, p. 132. 



