SCALE INSECTS (" COCCIDiE ") OF AUSTRALIA. 



159 



Frenchia semioccuUa, Maskell (Fig. 111). 

 Trans. N. Zealand Institute, vol. xxvii, p. 70, pi. vii, figs. 9-19, 1894. 

 Froggatt, Agrir, Gazette N.S.W., vol. ix, p. 495, 1898. 



This species is found upon the branchlets of various species of sheoaks 

 {Casuarina). growing at Thornleigh and Manly, New South Wales. 



Fig. HI — 

 Frenchia semiccculta, Kaskell. 



In this species the male coccids cause distinctive galls, or swollen corru- 

 gations on the branchlets, congregating in clusters of half a dozen or more, 

 forming a chamber with a terminal orifice above, about one-twelfth of an 

 inch in height, between two swollen, thickened lips, swelling out of the bark. 

 The female hides under the bark, forming a circular tubular opening above, 

 through which she projects her tail. 



Adult female yellowish, tinged with red to dull red, about one-tenth of an 

 inch in diameter ; before gestation the body is subcircular and not half the 

 size, ventral surface convex, rostrum iipon a boss in the centre, very small ; 

 legs and antennae wanting. From the centre of the dorsal surface springs 

 the tail, which is bluntly rounded at the tip. After treatment in potash a 

 hairless anal ring and two minute spines are seen near the tip. 



117. Frenchia semiocculata. Cat. Coccidse, p. 39. 



