30 SCIENCE BULLETIN, No. 18. 



Lecanium casuarince, Maskell. 

 Trans. N. Zealand Institute, vol. xxx, p. 240, pi. xxvi, figs. 9-14. 1898. 



This curious species was collected in the deserted chambers of some Hepalid 

 moth larvae in the stem of a Sheoak {Casnarifia, sp.), at Myrniong, Victoria. 

 I have a series of specimens of a closely allied if not the same species, found 

 in a cavity under the dead bark of an injured Native Cypress (Frenella 

 robusta). 



Adult female, semi-globular, deep shining red, with the thickened margin 

 black. Dorsum sometimes smooth, in others with one longitudinal and two 

 transverse carina?. Diameter, f of an inch. Under surface convex, forming 

 a regular box, no feet or antennae; but when treated with potash, rostrum 

 spiracles and abdominal lobes \asible. 



1022. Lecanium casuarince. Cat. Coccidee, p. 211. 



Lecanium dcfressum, Targioni-Tozzetti. 

 Studie Sul. Coccid., p. 29, 1867; Cat. Coccidce, p. 37. 1869. 

 Signoret, Ann. Soc. Ent. France (5), vol. iii, p. 439. 1873. 

 Douglas, Ent. Month Mag., vol. xxiv, p. 27. 1887, 

 Maskell, Trans. N. Zealand Institute, vol. xxv, p. 220. 1892. 

 An introduced European species, chiefly confined to hothouse plants, where 

 it has been recorded in New Zealand, and discovered infesting vines and a 

 Needlebush {HaJcea, sp.) in New South Wales. It is also recorded from tlie 

 West Indies, Brazil, and the Hawaiian Islands. 



The adult female is reddish brown to black in colour; elliptical, more or 

 less convex in form; length varying from | to J of an inch. Antennae eight- 

 jointed, feet rather long. Derm marked with small irregular cells, closely 

 conjoined, forming a regular pattern, with a clear spot in the centre of each 

 cell. Immature females light biown, more flattened, and often showing 

 longitudinal ridges. 



Maskell, in a paper in the Entomologist (1894), " Eemarks on Certain 

 Genera of Coccidae," considers that Lecaniitm begonice, L. nigrum, and this 

 species are probably identical. If this is the case, priority of nomer.clature 

 would make this a synonym of Lecanium nigrum. 

 987. Saissetia depressa. Cat.- Coccidae, p. 201. 



Lecanium expansum, Green (Fig. 15). 

 Indian Museum Notes, vol. iv, p. 9. 1906. 

 Coccidce of Ceylon, pt. ii, p. 23.5, 1904, pi. 86. 

 Paralecanium expansum, Cockerell and Parrott, The Industrialist, p. 207. 1 899. 



The type specimens were described by Green upon the foliage of Dalhergia 

 and Litsea from Ceylon. I obtained it upon the leaves of the Moreton Bay 

 Fig (Ficus macrophylla), in the public gardens at Maryborough, Queensland, 

 the greater part of the surface of the leaves being thickly coated with black 

 smut, caused through the presence of these coccids. 



