. A descriptive catalogue of the scale insects ("Coccidae") of Australia. Insects -- Australia; Scale insects. 12 SCIENCE BULLETIN, No. 18. described an allied form under the varietal name of P. masTcdli var. viminaria, upon the twigs of Viminaria denudata, and Hakea ilicifolia from the neigh- bourhood of Perth, Western Australia. Adult female dark brown; elliptical in form when alive, much wrinkled when dead. Ovisac elongate, narrow, composed of felted white cotter. Length of female, -/g inch, ovisac J inch. A median ridge down the centic of the dorsum, margins flattened. Antennae e
. A descriptive catalogue of the scale insects ("Coccidae") of Australia. Insects -- Australia; Scale insects. 12 SCIENCE BULLETIN, No. 18. described an allied form under the varietal name of P. masTcdli var. viminaria, upon the twigs of Viminaria denudata, and Hakea ilicifolia from the neigh- bourhood of Perth, Western Australia. Adult female dark brown; elliptical in form when alive, much wrinkled when dead. Ovisac elongate, narrow, composed of felted white cotter. Length of female, -/g inch, ovisac J inch. A median ridge down the centic of the dorsum, margins flattened. Antennae eight-jointed; third longesl, last three sub-equal, with long hairs at the tip. Fringed with fine blunt spines round the margins. Maskell says it is allied to Pnhinaria maskelli., var. spinosior, but besides its smaller size it differs in the feet, maigiral spines, and dorsal elevation. In Mrs. Fernald's catalogue this sjDecies is -dimply made a variety, but I see no reason for sinking its rank. Pulvinaria newmani, (Fig. 6). This fine species was collected in the Harvey district. Western Australia, by Mr. L. J. Newman, upon the twigs of an undetermined species of Jacksonia. Adult females thickly, encrusting the twigs and branchlets. Length, with ovisac, just under i inch ; adult female without ovisac, after treatment in potash, over I inch in length, but only ^V ii'ch when dried against the ovisac. Dull reddish brown, broadly oval, rounded in front, constricted behind cephalic portion on either side, swelling out to anal segment, which is deeply cleft with the extremities on either side rounded. Antennae seven-jointed; first short, broad, second longest, third and fourth equal, fifth to seventh smaller. Rostrum well developed. Legs stout, thighs thickened, tibiae stout at base. Whole surface covered with fine scattered spines, with a distinct fringe right round the outer margin of stout short spines. The ovisac is composed of felted white cottony secretion, which is waved
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectscalein, bookyear1915
