BY E. METRICK, B.A. 167 



hindmargin ; a fuscous-grey hinclmarginal line, in female darker 

 and sharply marked ; cilia pale ochreous-yellow. 



Closely allied to Thin, opuhntella, Z., which it nearly resembles 

 in markings, differing especially by the yellow hindwings and 

 darker ground colour, which contrast handsomely with the snow- 

 white markings ; it is also somewhat larger, and is therefore the 

 largest species of this group. 



Five specimens taken at Blackheath in the Blue Mountains, 

 at an elevation of 3,500 feet, at the end of February, in dry 

 grassy places. 



Thin, grammella, Ti. 



Prof. Zeller, to whom I sent specimens of the species described 

 by me as Or. emieagrammos (Proc. Linn. Soc. N.S.W., III., 194), 

 assures me that it is identical with his grammellus, which name 

 must therefore be adopted for the species. Zeller's original type 

 would seem to have been a slight variety. 



Thin, acontophora, n. sp. 



(^ ? . 10J"-lli". Head ochreous-white, centre of forehead 

 and collar brownish-ochreous. Maxillary palpi white, externally 

 except at apex ochreous mixed with dark fuscous. Labial palpi 

 very long, ochreous mixed with dark fuscous, internally and 

 beneath white. Antennse whitish-ochreous. Thorax whitish- 

 ochreous, becoming brownish-ochreous on shoulders and anterior 

 margin. Abdomen pale whitish-ochreous. Legs pale whitish- 

 ochreous, anterior pair ochreous-fuscous internally. Forewings 

 rather short, moderately broad, costa rather strongly and evenly 

 arched, apex almost acute, hindmargin sinuate, rather strongly 

 oblique ; pale whitish-ochreous, sometimes slightly tinged with 

 brownish-ochreous, especially towards base of costa, and with a 

 few scattered black scales ; a narrow white central longitudinal 

 streak through disc from base nearly to hindmargin, towards 

 base very finely attenuated, posteriorly very suffused and 

 L 



