SCALE INSECTS (" COCCID^ ") OF AUSTRALIA. 



47 



Ggdus XXVII. Asterolecanium, Targioni-Tozzetti. 



Introduction 2nd Mem. Studi. Cocc, Catalogue, p. 41. 1869. 

 Planchonia, Signoret, Ann. Soc. Ent., France (4), vol. x, p. 282. 1879. 

 Asterodaspis, Signoret, Bull. Soc. Ent., France (5), vol. vi, p. 209. 1876. 

 Green, Coccidce of Cei/lon, part iv, p. 311. 1909. 

 Newstead, Mon. British Coccida, vol. ii, p. 150. 1902. 



The female coccid is completely enclosed in a box or sack-like stiuctiire 

 (sometimes embedded in the soft tissue of the leaf or stem, with the top level 

 with the surface of the bark), composed of opaque, femi-transparent, glass 

 like, waxy or horny secretion, with the outer margins fringed with crystalline 

 filaments or waxy spines. At the anal extremity there is a small opening, 

 through which the young larvae- escape from the sac. 



The enclosed adult coccid^ are legless, with antennae wanting or else much 

 aborted. The anal lobes are small and rudimentary, with the margins of 

 the integument fringed with one or two rows of curled glands. 



Maskell included all the species now placed under this genus in Signoret's 

 genus Plmichonia, and was very critical about other wiiters on coccids not 

 adopting it, but as this name PlancJionia had been previously used in zoology 

 it had to be discarded. 



Members of this genus are widely distributed, about twenty-six species 

 have been described; but as several workers have relied chiefly upon size 

 and colour without indicating the structural differences, several may have 

 to be struck out. 



Aster olecanium fimbriatum, Fonscolombe (Fig. 33), 

 Coccus fimbriatus, Ann. Soc. Ent., France, vol. iii, p. 209. 1834. 



Planchonia fimbriata, Signoret, Ann. Soc. Ent., France (4), vol. x, p. 515. 1868. 



„ M&eke\l,*jrrans. N. Zealand Institute, vol. xxvi ,p. 85. 1893. 



This species is recorded from Europe and British Guiana, but Maskell has 

 also identified it with the species he had sent to him from Queensland on 



Rg. 32.- lAchtensia hakearum. 



Fig. Zi. — Asterolecanium ftmbriatum. 



