elliptical or pear-shaped, tapering anteriorly, somewhat convex, 

 the secretion exhibiting very fine transverse striations, and in 

 some specimens also a few obscure corrugations radiating from 

 the pointed end ; the margin is smooth all round ; the average 

 length is about 4 mm. = i inch, with a width at the broadest 

 part of about 3 mm. The texture of the dorsal part is thin and 

 not very solid ; the marginal part is thickened by an accretion 

 which, on turning over the shield, is seen to form a ventral scale 

 not extending over the whole median space. 



The enclosed pupa is yellow, both dorsally and ventrally, and 

 the antennae and feet are likewise yellow ; the wing-cases are 

 dark-brown. On the dorsum there is a short transverse black 

 band at about the separation of the thorax and the abdomen ; 

 on the head and thorax are two longitudinal rows of black 

 quadrangular spots, and on the abdomen two similar rows of 

 short black bands in pairs ; the extremity of the abdomen bears 

 a black patch. On the abdominal margin is a quantity of white 

 cottony secretion, not forming a fringe. Antennae moderate, 

 with eight joints, of which six are ringed. Feet short and thick. 



The adult female is yellow, with the thorax and abdomen 

 marked dorsally with a few black patches ; eyes reddish, facetted, 

 semiglobular, sessile. Head broader than long, depressed in 

 front, produced beneath in two rather long sub-cylindrical pro- 

 cesses. Antennse yellow, with brown tips, of the usual ten 

 joints. Feet yellow, normal. Forewings hyaline, without spots 

 or bands ; the primary stalk of the veins (a h) is very short, only 

 about one-sixth the length of the wing ; the stalk of the cubitus 

 (h c) is a little longer than the stalk of the sub-costa (h d) ; the 

 sub-costa (dg) forks close to the margin; the radius (df) is 

 rather convex, and reaches the margin near the apex, and a little 

 above it ; the upper branch of the cubitus (c e, c h) forks at some 

 distance from the margin, its branches bending sharply down- 

 wards ; the lower cubital branch (c k, c m) forks at a short dis- 

 tance from its source, and its longer branch is not very convex ; 

 the clavus (a n) is concave. Hindwings hyaline, with the normal 

 three longitudinal veins. Genitalia of the male (fig. 14) with a 

 sub-conical genital-plate, the sides straight, the end truncate; 

 the forceps is very broadly dilated at its tips, and is bent sharply 

 forward beyond the genital -plate. Genitalia of the female formed 

 of two simple conical valves enclosing the ovipositor. 



Habitat. — On Eucalyptus stuartiana. My specimens were 

 sent by Mr. French from Victoria, the exact locality not 

 mentioned. 



The appearance of the pupal shield in this species might cause 

 it to be easily mistaken for a coccid of the genera Chionaspis or 



