SCALE INSECTS C" COCCIDvE ") OF AUSTRALIA. 65 



H/il-jKocciis luU/etii, Cockcrell. 

 Victoria)) Xiitiimli.st, vol. .Kvi, j). 1S8. 1S9!>. 



This species was collected on the twius of a wattle (Acacia cdrojthiolata) 

 at Myniiong, Victoria. 



" Female coccids on twigs, very dark })iu))lt'. naked even when full of 

 young. Boiled in caustic soda they give out a tine magenta colour; the 

 female boiled autl flattened out under a cover glass is 4 mm. long and 2^ 

 broad. Mouth parts very small. Legs and antenn;e very ])ale. Dermal 

 spines numerous." 



It differs from all the other Australian species in having seven-jointed 

 iintennie and in a few minor details. 



267. Rhizococcus lidgeW. Cat. Coccida', ]i. 67. 



Rhizococcus lobidatus, Green "(Fig. 17). 

 Jiull. Entom. Besearch, vol. vi, pt. i, p. 46, tig. 3. 191.5. 



This curious coccid is not unconimon on the foliage of the " Weeping 

 Myall '" {Acai-ia pendala), one of our nuist graceful western scrub trees. I 

 have it originally from Bramble Station, near Condobolin, New South Wales ; 

 it was sent to Mr. Green in 1901. Other localities where it has been found 

 are Parkes, Yanco, and Forbes. 



The adult females naked, dark reddish brown with a few white woollv 

 filaments under the anal portion, resting stationary on the leaf or twig: 

 broadly oval, convex, wrinkled, ta]jering slightly to the anal extrenrity and 

 showing segmental divisions on the a])ical jiortion. Length about | of an 

 inch. 



Antenna' with six joints, fifth shortest, sixth longest. Legs small, but 

 .stout: claw stout. Anal lobes forming eight prominent projections, the 

 median pair longest ; anal ring with six hairs. Epidermis covered with 

 circular pores and short s[)iny hairs. 



Rhizococcas mavcii^t, Maskell (Fig. 48). 

 R. casuarinrp. var. niaticiis. Trans. \. Zealinul httttitutc, vol. xxix, p. 310. 1897. 



This is a typical form of the species of this genus affecting the axils of the 

 different species of she.-oaks [Casaari'iia) in our coastal districts. It was 

 ■originally described from s])ecimens collected at ^lanlv. New South Wales, 

 upon Caauariiia dislyla. I have it U])on an undetermined s])ecies of (\i,siiai iha 

 growing at Wagga, New Soiitli \\'ales. and have exaniin<'d manv living 

 specimens. 



The adult female is found on the surface of the i)aik. but hiiallv attached 

 in most cases to tiu^ l)ranchlet at the juiu tion of the smaller twigs. Geiu'ral 

 <(ilour bright red. interspersed with small white dots, markings of biown, 

 black or grey, changing to dull green on tlie flattened dorsal surface and sides : 

 the whole covered with line short scatteicd white spines. Dorsal surface flat- 

 tened with a slighth- raised lim or lidge on eitliei- side with six lows of thr<'e 

 I 9S)17.>— (' 



