SCALE INSECTS (" COCCID^ ") OF AUSTRALIA. 39 



Lecanium j}:eudexpansuin, Green. 

 Bulletin of Entomological Research, vol. v, part iii, p. 233. 1914. 



This species was sent to Mr. Green from Port Darwin, Northern Territory 

 of Australia (G. F. Hill), upon the foliage of a " Screw palm " {Pandanus 

 odaratissinius). 



This species is closely allied in colour, structure, form, and size to Lecanium 

 expansum, but differs in having simple marginal setae instead of flabellrform 

 Setae, as in L. expansum. 



Green, after giving a technical description of this new species, says : " Nor 

 is the resemblance purely superficial, for the structure of the antennse, the 

 absence of limbs, and the disposition of the pre-anal ceriferous pores are all 

 common in the two species. The male puparium of the two species are 

 indistinguishable." 



Lecanium scrobiculatum, Maskell (Figs. 23 and 24). 



Trans. N. Zealand Institute, vol. xxv, p. 221, jjI. xiii, figs. 5-7, 1892; vol. xxvii, 



p. 58, 1894; vol. xxviii, p. 391, 1896. 

 Lecanium pinque. Trans. A^. Zealand Institute, vol. xxvii, p. 58, 1904; vol. xxviii, 



p. 391, 1896. 

 Akermes pinquis, Cockerell, Ann. Mag. Nat. Hist., vol. ix, p. 453. 1902. 



A common species upon Acacia decurrens, Mittagong (New South Wales), 

 and on Dillwynia juniperina, Bankstown (New South Wales\ Found in 

 other localities about Sydney, and at Whitton (New South Wales), on Acacia, 

 sp. 



The type was described from Whitton; the specimens from Bankstown 

 were described under the name of Lecanium pinque, but Maskell afterwards 

 considered the difierences were more local than specific. 



Adult female varying from bright reddish -brown, usually darkest in centre 

 to dull brown, covered with a fine waxy secretion, giving it a shiny varnished 

 appearance, with deep circular pits on the dorsal surface ; central radiating 

 blotches and margin pale yellow. Very convex, humped in centre, longer 

 than broad, with the margin forming a distinct flange ; the front portion 

 projecting like the toe of a shoe ; the dorsum ridged with a row of six stout 

 tubercles, the first separated from the following five, followed by a more 

 irregular row of five on either side, with a row of four yellow pits on either 

 side between the dorsal and lateral tubercules. Length, ^ inch. 



Lecanium synaphecB, n.sp. 



This fine species comes from Boyanup, Western Australia, and was found 

 by Mr. L. J. Newman, covering the curious serrate foliage of Synaphea 

 peliolaris. 



Adult female reddish-yellow in the centre with the outer margin pale 

 yellow. Treated with oil of cloves, the j^ale outer margin shows a ring of 

 jrregular brown spots, and the central darker portion shows a tessellated, 



