291 



with blackish ; on each side of this band, and parallel to it, are 

 two pale yellowish waved lines. A very prominent ridge-like 

 pale yellow lateral line, edged somewhat with dark fuscous, 

 starting from one of the orange spots on second segment, and 

 continued uninterruptedly round body and anal segment, and 

 returning to orange spot on opposite side. Claspers pale-green. 

 Spiracles blackish ; prolegs whitish-yellow. Abdoiaen beneath 

 pale-green with three white waved lines, one in middle and one 

 on either side, the two latter continued the whole length of body, 

 middle line starting from posterior pair of prolegs and ending on 

 anterior pair of true legs. 



Feeds on Acacia decurr^eiis, full-fed end of September, imago 

 emerges during April. 



MXESAMPELA (?) DICTYODES, "it. Sp. 



Female, 50 mm. Head, legs, palpi, and thorax blackish, with 

 a purplish tinge ; thoracic crest large, well-developed, anteriorly 

 tinged with light reddish-purple. Thorax very woolly beneath. 

 Palpi very long and rough, somewhat dilated towards apex. 

 Antennae reddish-fuscous. Abdomen greyish. Forewings elongate- 

 triangular. Costa strongly arched towards base, sinuate beyond 

 middle ; apex very prominent, acute. Hindmargin strongly 

 bowed and dentate, more prominent on veins 4 and 5 ; dark 

 purplish-fuscous, irrorated finely with blackish striguke, which 

 becomes so dense on basal third as to form an almost black patch, 

 which extends rather more or less along costa to apex and hind- 

 margin. Cilia dark coppery-fuscous. Hindwings with hind- 

 ii'argin strongly dentate, light fuscous-purplish, basal half 

 whitish ; separation well defined. Cilia fuscous, paler at base. 

 Wir>gs beneath light dull-purplish, with a large, black, ajDical 

 patch on all wings, that on hindwings more pronounced. 



One specimen, bred by Mr. G. Lyell, jun., Gisborne, Victoria. 



This is a curious and striking insect, and will possibly require 

 a new genus when the male is known. In general appearance it 

 reminds one of Stathmorrltopa heggaria, Gn. The form of wing 

 and palpi are noticeable characters. 



Stibako«ha plagiosema, n. sp. 



Male, 40 mm. ; female, 48 mm. Head, palpi, thorax, legs, and 

 abdomen ashy grey-whitish. Thorax with two narrow, trans\'erse, 

 black bands, meeting in middle. Abdomen with black rings, 

 edged with white. Antenme fuscous, pectinations four. Fore- 

 wings elongate triangular. Costa gently arched, more so in 

 female ; hindmargin hardly waved, rounded, oblique ; ashy-grey- 

 whitish, densely strewn with dark-fuscous scales, in the male with 

 some obscure fuscous-reddish patches ; markings black ; a narrow 



