454 Mr. E. Meyrick on the classification 



upper margin of cell from one-fourth to transverse vein, re- 

 appearing beyond this as a broader streak continued to costa before 

 apex, an elongate dark fuscous spot beneath origin of vein 2, and 

 interspaces of veins 2 — 5 dark fuscous on basaJ half ; a clear vrhite 

 streak from apex near hind margin to anal angle, broadest above 

 middle ; five short dark fuscous linear streaks fi-om lower part of 

 hind margin between veins ; cilia white, with a dark fuscous Une, 

 tips fuscous. Hind wings and cilia ochreous-whitish ; vein 5 

 absent (coincident with 4). 



Allied to the group of T. opulentella, from all of which 

 it is immediately distinguished by the dark fuscous 

 intervenal markings, as well as the pectinated antennae 

 and absence of vein 5 of the hind wings. 



Mount Lofty, South Australia ; one specimen received 

 from Mr. E. Guest, who took it in April, together with 

 a second. 



TJdnasotia megalarcha, n. s. 

 (? , 33 — 37 mm. Head, palpi, and thorax shining brownish 

 ochreous ; margins of eyes and a slender line on each side of back 

 of thorax not reaching anterior margin white ; forehead with a 

 very short conical projection. Antennfe dark fuscous, dentate, 

 moderately ciliated (^). Abdomen grey, anal tuft ochreous-whitish. 

 Legs dark grey, posterior tibiae grey-whitish. Fore wings veiy 

 elongate -triangular, costa gently arched, apex round-pointed, hind 

 margin sinuate, oblique ; shining brownish ochreous ; a slender 

 white streak immediately beneath costal edge from near base to 

 two-fifths ; a straight narrow white streak from beneath extremity 

 of this to apex ; a moderate tolerably straight white median 

 streak from base to middle of hind margin, margined with dark 

 fuscous, lower edge somewhat toothed at origin of vein 4 ; two 

 slender white streaks from near base, first to middle of inner 

 margin, second to anal angle ; veins 2 — 4 marked by obscure white 

 lines ; a fine fuscous hind marginal line ; cilia light greyish 

 ochreous, somewhat shining, with a white basal streak along upper 

 part of hind margm. Hind wmgs with veins 4 and 5 short-stalked ; 

 grey; cilia light greyish ochi'eous. 



The largest species of the genus ; nearest to T. panse- 

 lenella, but with grey hind wings, and without white 

 hind marginal markings above median streak of fore 

 wings. 



Mount Kosciusko (5000—6000 feet), New South Wales; 

 two specimens in January. 



