LEPIDOPTERA HETEROCERA. 927 



strigam chalybceam includente, tinea submarginali atra 

 angulosa ; poslicce fascia lata maculaque apicali Jlavescente- 

 albis, ilia postice abbreviata strigas albas emittente. 



Male and female. Very dark ferruginous-brown, minutely 

 and more or less thickly speckled with white. Abdomen with an 

 orange subapical band. Tarsi with whitish bands. Fore wings 

 with two deep black zigzag lines, and with a deep black longitudinal 

 streak,which proceeds from the base ; reniform mark between the lines, 

 large, broad, with a deep black border and a deep black disk, which 

 includes a chalybeous streak ; submarginal line deep black, zigzag, 

 the angles much more acute in the female than in the male; under 

 side with a very broad white band, which includes a broad blackish 

 transverse streak, and is largest in the male. Hind wings with a 

 large yellowish white apical spot and a broad yellowish white band, 

 which is abbreviated hind ward, but emits some irregular white 

 streaks to the interior border ; hind part of the exterior border with 

 diffuse white lunules. Length of the body 12 lines; of the wings 

 28—32 lines. 



The colour of the anterior legs chiefly distinguishes this 

 species from the preceding one, but there may be intermediate local 

 links from the one to the other. 



a, b. River Dawson, 300 miles in the interior from Moreton 

 Bay. From Mr. Diggies' collection. 



Genus ORTHEAGA. 



Fcem. Corpus robustum, lseve. Proboscis mediocris. Palpi 

 laeves, graciles, oblique ascendentes, verticem paullo superantes; 

 articulus 3us lanceolatus, 2i dimidio non brevior. Antenuae graciles. 

 Abdomen alas posticas superans ; segmenta lo 3um cristata. Pedes 

 laeves, validi ; calcaria longa. Alae anticae breviusculae, latiusoulae, 

 vix acutae, margine exteriore vix flexo. 



Female. Body stout, smooth. Proboscis of the usual length. 

 Palpi smooth, slender, obliquely ascending, rising a little higher 

 than the vertex ; third joint lanceolate, about half the length of the 

 second. Antennae slender. Abdomen extending somewhat beyond 

 the hind wings ; segments from the first to the fifth crested. Legs 

 smooth, stout; spurs long. Wings rather short and broad. Fore 

 wings hardly acute; exterior border hardly bent, its hind half 

 moderately oblique ; second inferior vein as near to the third as to 

 the first; fourth moderately remote from the third. 



u3 



