688 REVISION OF AUSTRALIAN LEPIDOPTERA, 



genera, and are to be laid aside ; some of them are in vague 

 general use among certain writers : viz., Argina, Hb. ; Pitane 

 (second use), Pallene, Lerna, Clisobara, Aquita, Uraba, Coesa, 

 Follanisus, Phaos, and Ardices, Walk. ; Diastrophia and Toxoloma, 

 Feld. ; Nepita, Moore ; Xanthesthes, Ramb. 



SESIADAE. 



Ocelli present, large. Antenna? about f , thickened posteriorly, 

 in <J swollen towards apex, ciliated. Maxillary palpi absent. 

 Posterior tibiae with spurs all present. Frenum developed. Fore- 

 wings with 13 veins, 1 simple at base, 2 from near angle of cell, 7 

 and 8 stalked, 1 2 from upper margin of cell, 1 3 free. Hind wings 

 with lc present, 5 from about middle of transverse vein, 8 free. 

 Larvae 16-legged, feeding internally. 



The family appears characteristic of the northern hemisphere, 

 and barely reaches Australia, being only represented by stragglers 

 of one genus. 



1. Sesia, F. 



Tongue well-developed. Antennae thickened on terminal half, 

 in £ rather abruptly swollen towards apex, strongly ciliated with 

 fascicles except near apex, in both sexes with a small terminal 

 fascicle. Palpi moderately long, arched, ascending, second joint 

 shortly rough-scaled beneath, terminal joint rather long, cylin- 

 drical, tolerably pointed. Abdomen with large expansible anal 

 tuft. Posterior tibiae roughly haired above, spurs long. Fore- 

 wings with vein 2 from near angle of cell, 7 and 8 stalked, 7 to 

 apex, 12 from about middle of cell. Hind wings with veins 3 and 

 4 approximated at base or short-stalked, 6 absent, 7 from angle. 



The larvae feed in roots or shoots. 



A. Anal tuf b wholly black 3. tipuliformis. 



B. „ ,, partly orange. 



a. Abdomen black with three or four orange 



bands 1 . isozona. 



b. Abdomen orange, base of segments black.. 2. chrysophanes. 



