SCALE INSECTS (" COCCIDi*: ") OF AUSTRALIA. 87 



side, with anal seta?. Epidermis with a marginal rinu of shoit blunt spines, 

 with scattered circular orifices. An irrcjiuUir dull yellow chitinous area 

 apparently enclosing the anal ring. Length i':; of an inch. (Ireeu savs ' 

 "Length averaging 1*50 nun. Breadth 1-25 nuu. Ovisac white, strongly 

 convex, broadly oval, narrow behind, very closely felted and tough. Length, 

 3-() to 3-5() nun. Breadth, 2-25 to 2-50 mm."" 



The Victorian specimens vary much in size, Init are smaller than the 

 Wagga sj)ecimens. which, though of the same form, have a decidedly yellow 

 tint. Green, in the same pa])er, describes an Ericooccus I obtained from 

 Mr. E. P. Dodd, collected at Townsville. Queensland, on the leaves of an 

 undetermined species of Eucalyptus, which has the same curious habit of 

 congregating and forming the ovisacs at the extreme tip of the leaves. He 

 describes it as a variety of the above species under the name of Eriococois 

 ■serratilohis prominent^ (Fig. 63). I think it could be well defined as a 

 s])ecies. It differs from the ty|)e in the form of the anal hjbes, which are 

 more prominent and cylindrical, scarcely broader at the base than at the 

 truncate extremity, contrasting strongly with the shorter and broadlv 

 conical lobes of tlie type : the chitinous ])late narrower and more lunate in 

 shape. The ovisacs on niy co-type specimens are much smaller and more 

 •elongate. 



Eriococcvti simplex, Maskell. 

 Trans. Xew Zeaand Institute, vol. xxix, p. 317, pi. xxi, fig. 3. 1897. 



The type s])ecimens were sent from New South Wales to ^laskell. but the 

 •exact locality is unrecorded, upon the foliage of Eucalyptus, sj). 



The sac composed of yellow secretion, variable in form, convex, ellii)tical, 

 .about iV of an inch in length. 



Adult female red, filling the sac when alive. Antenna.' composetl of seven 

 joints, second and third joints longest. Feet normal. Anal ring with eight 

 hairs. A row of short blunt, rather slender, spines on the outer margin of 

 body, most numerous at the two extremities. Derm bearing other circular 

 spinnerets. 



Maskell says : " Allied to Eriococcus spiuiger, but differs in the antenna, 

 the more slender spines, and their arrangement in terminal groups."' 



Eriococcus simplex -vslv. dealbata was described from specimens sent from 

 Western Australia, found on tin; young shoots growing from the butts of 

 eucalyptus that had been cut down. It differs only in the sac being white, 

 according to Maskell "s descri])tion. 



336. Eriococcus simplex. Cat. Coccachc, ]). 78. 



Eriococcus sordidus, Creen. 

 Victorian Naturalist, vol. xxi, p. 1)8, figs. 8-9. 1904. 

 This species was described from specimens found upon the foliage of the 

 " Everlasting Flowers " {Helichrysum ferruf/iueum) growing on the Dandenong 

 Ranges, Victoria, where Mr. C. French, jun., informed the writer it killed 

 niany of the j^lants. 



