LEPIDOPTERA HETEROCERA. 959 



Pitane, p., Cat. Lep. Heteroc. 531. 



This genus seems to be a connecting link between the Psychidce 

 and the Tineites. 



Male. Body slender. Palpi slender, pilose, hardly extending 

 beyond the head ; third joint minute, acute. Antennae thickly pec- 

 tinated to the tips, much more than half the length of the body ; 

 branches rather short. Abdomen extending as far as the hind 

 wings. Legs rather stout; hind tibia? with four long spurs. Wings 

 broad, not long, quite opaque. Fore wings hardly convex along the 

 costa, rounded at the tips. Larva case-enclosed. 



1. PSEUDOPASA DILECTA. 



Pitane dilecta, Cat. Lep. Heteroc, 532. 

 Van Dieman's Land. 



Genus 8. THYRIDOPTEKYX. 



Mas. Corpus robustum, dense pilosum. Antennae latissime 

 pectinatae, thorace non longiores. Abdomen alas posticas sat longe 

 superans. Pedes pilosi, sat validi. Alae angustae, nudae, limpidae ; 

 anticae apud costam rectae, apice rotundatae ; posticae breves, sub- 

 truncatae. Fcem. — Aptera. 



Male. Body stout, densely pilose. Antennae very deeply pec- 

 tinated, not longer than the thorax ; the branches regularly de- 

 creasing in length towards the tips. Abdomen extending some 

 distance beyond the hind wings. Legs pilose, rather stout. Wings 

 narrow, bare, quite vitreous and colourless. Fore wings about twice 

 the length of the hind wings, straight along the costa, rounded at 

 the tips; subcostal vein emitting two veins in front; three superior 

 and three inferior veins; discal areolet divided longitudinally by an 

 indistinct secondary vein ; second inferior vein more than twice 

 further from the third than from the first. Hind wings slightly 

 truncated, hooked to the fore wings by a long and stout bristle. 

 Female. — Wingless. 



North America. 



1. Thyridopteryx Ephemer^eformis. 



Mas. Nigra, pilosa ; ala? vitrea, antica vitta posticaque margine 

 interior e squamosis. 



R2 



