SCALE INSECTS ( " COCCID^E •) OF AUSTRALIA. 83 



Adult female fawn colour, finely segmented, with a marginal fringe of 

 short conical spines, set at regular intervals. Antennae composed of seven 

 joints, the third longest, second and fourth subequal, fifth and sixth shorty 

 the seventh twice the length of the sixth. Jjcgs large, tarsus longer than the 

 tibia ; upper digitules large. Anal tubercles conspicuous, cylindrical, conical 

 at ajjcx, with several long spines and setcC. 



318. Eriococcus imferfectus. Cat. Coccidtc, p. 75. 



Eriococcus irr('(julari><, n.sp. 



The male and female ovisacs have been found covering the under side of 

 the bark of the twigs and smaller branches of the Peppermint Gum {Eucaly2Jtus 

 2)ipeiita) at Salisbury Court, Uralla, New South Wales. The bark and foliage 

 are usually much discoloured with fumagine, and the uiale scales very 

 abundant. 



Adult male sacs pure white, formed of loosely felted woolly filaments, 

 flattened, elongate oval, with the two long white setie from the ti]) of the- 

 abdomen of the male projecting through the apical opening. Length about 

 -To of an inch. 



Adult female forming in the first instance a loose rounded mass of silvery 

 white threads which appear to project from all over the dorsal surface until 

 rounded together they cover her. Later on the test is elongated, narrow 

 at base, very irregular in form, closely felted, and of a pale yellowish-brown 

 tint. Length, f of an inch. 



Adult female yellowish brown, giving oft' a dull yellow tint in potash; 

 convex oval, tapering to the tip of the abdomen, segmental divisions distinct. 

 Length, ^^ of a,n inch. Antennte seven-jointed, first short broad, second,, 

 third and fourth of a imiform length, fifth shortest, sixth longer, seventh 

 rounded at the tip. Legs long, femora robust, tibia short ; tarsus long ; 

 claw large: upper digitules very long, clubbed at the tips. Anal ring small^ 

 apparently eight hairs. Anal tubercles large, stout, cylindrical, rounded 

 at the apex with a fine seta on either side of each tiibercle, the outer one very 

 long. The margin of the dorsal surface with a complete circle of rather 

 widely separated blunt spines, the rest of the derm thickly covered with 

 circular orifices, a few blunt transparent spines and hairs. 



The male coccid of the usual form with iridescent wings, brownish yellow 

 body and two long white anal seta-. 



This species comes near Eriococcus tejrperi, but dift'ers from Maskell's 

 species in having a distinct marginal fringe of stout spines and in the struc- 

 ture of the antennae. 



