756 REVISION OP AUSTRALIAN LEPIDOPTERA, 



g (j). 37-56 mm. Head and thorax white, incision of neck 

 red. Palpi red, terminal joint black. Antennae black. Abdomen 

 red, with dorsal series of black transverse spots, and lateral series 

 of small spots, beneath white with two series of black dots. Legs 

 black, femora red, beneath white. Forewings very elongate- 

 triangular, costa gently arched, apex obtuse, hindmargin rounded, 

 rather strongly oblique ; shining white ; a very slender costal 

 black streak from base to near apex, sometimes absent ; a slender 

 red streak beneath this from base almost to apex ; a slender black 

 streak along lower median vein from base to |, sometimes absent ; 

 sometimes a black dot beneath costa at § ; a black elongate dot 

 near hindmargin on vein 2 and another on vein 5, both variable 

 and sometimes absent : cilia white. Hind wings shining white ; a 

 small black transverse discal median spot ; four small irregular 

 almost or quite marginal black spots, first above apex, fourth above 

 anal angle : cilia white. 



var. a. Head and thorax suffused with ochreous or rosy ; 

 forewings suffused with rosy or yellowish-tinged, a subcostal some- 

 times furcate black streak, median streak thicker, trifurcate or 

 quadrifurcate, a subdorsal black streak : hind wings tinged or 

 suffused with rosy, two lower marginal black spots sometimes 

 connected with broad blackish longitudinal streaks nearly reaching 

 base. 



var. |3. Forewings and hind wings wholly without black 

 markings. 



Varies much according to locality, but all the varieties are 

 connected by intermediate forms and certainly identical, except 

 perhaps var. /3, which however I believe to be only an accidental 

 sport. Generally speaking, it is only in the most Southern speci- 

 mens that the black markings of the forewings are much 

 developed ; in going North they tend to disappear ; at Sydney the 

 normal form is that described as typical, whence a perfect series of 

 geographical forms can be obtained leading to the Cook town form, 

 in which the black markings of the forewings are usually wholly 

 absent ; the single specimen of var. was from Rockhampton. 



