with one short branch and another almost parallel to the margin^ 

 but there is no pterostigma in the enclosed space ; the radius is 

 wavy, joining the costal margin about the apex ; the upper main 

 branch of the cubitus is convex, forking at two-thirds of its 

 length and its upper secondary branch reaches the margin a little 

 below the apex ; the lower main branch forks at about three- 

 fourths of its length, the shorter secondary branch turning 

 sharply to the margin, the longer extremely convex ; the claval 

 vein is short and very slightly concave. On the surface of the 

 wing are several brown patches ; a few, small and scattered, near 

 the base of the wing ; one across the middle, much broader near 

 the costal margin and narrow near the dorsal margin ; a third, 

 towards the extremity, very broad at the dorsal margin ; and a 

 fourth, very small, separated from the third by a crescent-shaped 

 hyaline space, just above the apex. The hind wings are hyaline, 

 with only the usual three longitudinal faint veins. The genitalia 

 of the male insect (fig. 4) consists of the usual dorsal processes ; 

 the genital-plate (a) is curved slightly backwards, with its basal 

 portion very broadly rounded posteriorly ; the forceps (h) con- 

 sists of two narrow cylindrical processes bent slightly forwards ; 

 between these organs is the penis (not shown in the figure) ; the 

 abdominal extremity (c) is blunt and turned upwards. The 

 genitalia of the female have not been observed, but in all pro- 

 bability they do not differ greatly from those of the next species. 



Habitat. — In Australia, on Acacia implexa. My specimens 

 were sent by Mr. Lidgett, of Myrniong, Victoria, from whom I 

 have ventured to name the insect. 



The differences between this and P. acacia will be readily 

 seen by comparison of the wings and the genitalia, although in 

 colour and in habit the two do not greatly differ. The brown 

 bands on the fore wing of P. Lidgetti are much more close and 

 conspicuous than the scattered patches on P. acacia",, and the 

 dorsal hairs of the pupa are also distinctive. 



Genus Aphalara, Forster. 



Head either swollen or produced in conical processes ; stalk of 

 cubitus in forewing longer than the stalk of the subcosta ; radius 

 curved. 



I follow F. Low in including amongst the generic characters 

 the processes of the head. Scott (Trans. Entom. Soc, London, 

 1876) says : — " Face not lobate." 



Aphalara teeta, sp. nov. Pi. ii., figs. 5-io. 



Insects covered in the pupal stage by a waxy scale or shield. 

 The colour of this shield is reddish-yellow ; the form is sub- 



