SCALE INSECTS (" COCCID^ ") OF AUSTRALIA. &7 



often irregularly scattered over the dorsal surface, forming slight transverse 

 bands. The dorsal surface is distinctly segmented ; antennae varying from 

 seven to eight joints, last one longest. Legs slender, normal; tibia very 

 slightly dilated at the extremity, with long fine hairs; lower pair slightly 

 thickened. Anal tubercles very small, each bearing a seta ; anal ring with 

 six hairs. Epidermis covered with small circular spinnerets and a few 

 slender spiny hairs. 



Length, ^ of an inch (Maskell gives much smaller dimensions). 



41:2. Pseudococcus albizzice. Cat. Coccidse, p. 97. 



Dactylopiics aiirilanalus, Maskell (Figs. 69 and 70). 

 Trans. X. Zealand Institute, vol. xxii, p. 151, pi. viii, figs. 7-18. 1889. 

 Trans. N. Zealand Institute, vol. xxix, p. 320. 1896. 

 Craw, Fifth Bien. Report, Californian Board Horticulture, p. 45. 1896. 

 Froggatt, Agric. Gazette New South Wales, vol. viii, p. 531. 1897. 

 Fuller, First Report Entomologist Natal Dep. Agric, 1899-1900, p. 106. 



This is the common mealy bug of the stone pines, Araucana hidwelli and 

 A. excelsa in New Zealand, and it was probably introduced with nursery 

 stock into California, Natal, and Australia on these trees. 



In nearly all the parks and gardens where these pine trees are grown this 

 scale will be found, sometimes covering all the trunk and branchlets. When 

 it attacks young trees it often kills them right back, but on large trees the 

 coccinellid beetles, lacewings and their larv?e soon clear them off in spite 

 of their numbers. 



Adult female, deep purple black, resting upon a mass or pad of woolly 

 secretion, ^vith the outer margin fringed with bright yellow floury secretion, 

 that also forms a dorsal stripe down the centre of the back. General form, 

 broadly rounded, convex, with distinct irregular segmental corrugations. 

 Antennae seven or eight jointed. Legs normal; the upper digitules long, 

 fine, knobbed hairs, lower one slender with dilated ends. Anal tubercles 

 small ; anal ring with six hairs. Epidermis with scattered spinnerets, with 

 short fine spiny tubes among them. Length, vo of an inch. 



446. Pseudococcus aiirilanatus. Cat. Coccidse, p. 97. 



Dactylopitis australiefms, Green and Lidgett. 

 Victorian Naturalist, vol. xvii, p. 13. 1900. 



These coccids were found upon the foliage of Acacia dealbata at Myrniong, 

 Victoria. Recorded as a serious pest on these wattles. 



" Adult female partly enclosed in a mass of pure white cotton ; subglobular 

 in shape, deeply and distinctly segmented. Antennae irregular, composed o 

 seven or eight joints ; the variation is caused through the division between 

 the fourth and fifth being often confluent. Anal ring with six stout hairs 

 Digitules fine knobbed hairs, those on tarsus longest; tarsus very short 

 + 98175— D 



