LEPIDOPTERA HETEROCERA. 825 



Genus 120. THUDACA. 



Mas et fcem. Corpus sat gracile. Caput fasciculo porrecto 

 couico. Proboscis mediocris. Palpi recti, glabri, graciles, oblique 

 ascendentes, capitis latitudine vix duplo longiores ; articulus 3us 

 set i for mis, 2i dimidio non longior. Antennae graciles, subcrenulatae. 

 Abdomen alas posticas paullo superans. Pedes sat validae; tibiae 

 posticae subh'mbriatae. Ala? auticae latiusculae, acuta?, margine exte- 

 riore recto. 



Allied to CEcophora. Male and female. — Body rather slender. 

 Head with a porrect conical tuft. Proboscis moderately long. 

 Palpi straight, smooth, slender, obliquely ascending, nearly twice 

 longer than the breadth of the head ; third joint setiforra, about half 

 the length of the second. Antennae slender, minutely crenulated, 

 much shorter than the fore wings. Abdomen extending a little 

 beyond the hind wings. Legs smooth, rather stout; hind tibiae 

 slightly fringed. Wings rather broad ; fringe rather short. Fore 

 wings acute ; exterior border straight, moderately oblique. 



1. Thudaca obliquella. 



Mas et foem. Late ochracea ; pectus et abdomen albida, vittis 

 duabus ochraceis, la subcostali^ 2a poslica, fasciis duabus 

 obliquis lineaque marginali ochraceis nigro submarginatis ; 

 posticce ceneo-cinerece, fimbria flavescente. 



Male and female. Bright ochraceous. Pectus, abdomen and 

 legs whitish. Fore wings silvery white, with two bright ochraceous 

 stripes, one subcostal, the other near the interior border; two bright 

 ochraceous slightly black-bordered bands, which are more oblique 

 than the exterior border ; a bright ochraceous marginal line, which 

 is black-bordered on the inner side. Hind wings aeneous-cinereous ; 

 fringe pale yellowish. Length of the body 3^ — 4^ lines; of the 

 wings 9 — 12 lines. 



i — c. Australia. From Mr. Darnel's collection. 

 i. Moreton Bay. From Mr. Diggles' collection. 

 ?. Sydney. From Mr. Lambert's collection. 

 f. Sydney. From Mr. Diggles' collection. 



