^6 SCIENCE BULLET [X, No. 18. 



iusiform. Legs long, stout^ with tine hairs. Anal tubercles with two smaller 

 lobules on either side, all bearing short, strong spines, and the median 

 tubercles a long seta. Epidermis covered with many s})inneret orifices, 

 together with si)ines and long fine hairs : anal ring with six hairs. Length, 

 About o^ of an inch. 



Maskell says : " Allied to Dactylopius hihhetiifv and D. albizzifc: but the 

 six abdominal lobules and the antennae and feet separate it from the latter 

 species."' 



439. Pseudococcus rtcacice. Cat. Coccidff', p. 97. 



Dactyloinus affivis, IN'Iaskell. 



Trans. N. Zenlaixl Institute, vol. xxvi, p. i)0, pi. viii, tigs. 17-18. 1893. 



This mealy bug is a subterranean species found u])on the roots of dahlias 

 iind potatoes in the neighbourhood of Sydney, New South Wales. 



Adult female, })inkisli to vellowish, powdered with thin white meal on the 

 dorsal surface. Form elliptical, somewhat flattened, segmental divisions 

 ■distinct. Length, up to | of an inch. Coccid fringed on the sides with 

 woolly filaments shortest in front, longest behind. Antenniie composed of 

 ^•ight segments, the last longest; then the third, second, and first: fourth, 

 sixth, and seventh shortest and equal to each other; fifth longer than the 

 fourth and nearlv as long as the first. Feet long, slender, pubescent ; tarsus 

 short : ejiidermis bearing a number of small circular spinnerets and a few 

 minute scattered hairs. Anal ring with six hairs. Anal lobes small, bearing 

 hairs and several glandular pores. 



Maskell says it is allied to a number of species of the Dactyhinus adonidum 

 type, but its subterranean habits, and the structure of its feet and antennte 

 .separate it from those. 



440. PseHdocorcHs affinh. Cat. Coccida^, p. 97. 



DactyJopiiis aJhizzUr, Maskell. 



Trans. X. ZeahituI Institute, vol. xxiv, p. 31, pi. vi, fig.s. 3-10. 1891. 

 Froggatt, Agric. Gazette New South Wales, vol. xiii, p. 719, ))1. 114, tig. 17. 1902. 

 Kirkaldy, Fauna Hau-aiensis, vol. iii, pi. ii, p. 103. 1902. 



The original s])ecimens were sent from Victoria u[)on Albizzia lojdimi.llni; it 

 is, however, a very common scale in the coastal districts of New South Wales 

 upon the small shrubby acacia, Acacia discolor. In the plantations of Acacia 

 decurrens in the South C^oast districts it often does a great deal of damage to 

 the young trees, and is also recorded upon several other sepcies of acacias. 

 Kirkaldy has recorded it upon an orange in the Hawaiian Islands. 



Adult females massed together upon the twigs and main branchlets : the 

 oval convex, purplish black coccids almost touching, resting upo)i a white 

 woollv pad. which forms a rim round the margin, and the mealy secretion is 



