a few apparently undescribed Insects. 55 



slight metallic reflections of green and blue ; the hind wings are 

 intensely black as regards all that portion exposed when the wings 

 are extended at right angles with the body, but in the folded por- 

 tion near the abdomen are two pale clouds, and the entire costal 

 margin covered by the fore wing is white ; the abdomen is nigro- 

 aeneous along the middle, the aeneous tint being due to a rather 

 copious sprinkling of glittering golden scales among the black ; 

 three segments near the base have, on each side, a basal black 

 spot and a marginal white one ; the anal brush is black, the tips 

 of the scales paler. Beneath, the palpi, face and sternum are 

 whitish grey, the dark colour of the epicranium and the white of 

 the under side distinctly and abruptly separated from each other, 

 the dark colour descending obliquely to the lower margin of the 

 eye ; the abdomen blackish, approaching to grey towards the 

 anus, but the anal brush quite black ; the basal segments are 

 marked with white in the centre, and four of the segments have a 

 very conspicuous snow-white spot on each lateral margin ; the 

 fore wings are black, inclining to grey at the base, and the hind 

 wings are black exteriorly, but grey towards the base, and espe- 

 cially in the folded portion near the abdomen. 



This appears to be a common insect at Moreton Bay, Mr. 

 Gibbon brought home many specimens, some of which are pre- 

 sented to the British Museum. 



Stirps BOMBYCINA, Newman. 



Genus Castulo, Walker. 



Sp. 1. Castulo Doubledayi, Newman. 



Antennis hipectinatis nigris, ramuUs fuscescentibus ; epicranio 

 ocuUsque nigris ; labipalpis porrectis Icete miniatis ; prolhorace 

 minialo ; mesothorace atque patagiis nigricantibus ; abdomine 

 rufescenti ; alts anticis nigricantibus, costd rvfescenti, maculd 

 basali rufescente vagd, maculd prope angulum analem albidd ; 

 posticisjlavis, margine postico late nigricante. (Alarum dilat. 

 1-2 unc.) 



Male. — Labial palpi bright red, somewhat acuminate, ascending 

 and porrected ; crown of the head and eyes black ; antennae rather 

 less than half as long as the fore wings, strongly bipectinated, the 

 shaft black, the pectinations pale brown ; prothorax bright red ; 

 mesothorax and tippets nearly black; abdomen reddish-orange 

 coloured ; fore wings — above — black, sprinkled with orange scales. 



