180 Transactions. — Zoology. 



Bateachedka, Stt. 



Head smooth ; ocelli present ; tongue developed. Antennae f, 

 in male filiform, simple, basal joint short, without pecten. Labial 

 palpi moderately long, recurved, second joint with scales more 

 or less slightly projecting angularly in front at apex, some- 

 times produced into a short dense tuft, terminal joint shorter 

 than second, somewhat roughened with scales anteriorly, 

 acute. Maxillary palpi very short, drooping. Posterior tibise 

 •with short tolerably-appressed hairs above. Forewings with 

 vein 1 obsoletely furcate, 2 from near angle of cell, 3 absent, 6 

 and 7 sometimes stalked, 7 to costa, 8 absent, 11 from near 

 middle. Hindwings ^, linear-lanceolate or linear, cilia 5-8 ; 

 2 and 3 sometimes absent, cell open between 4 and 5, 5 ap- 

 proximated to or out of 6 or absent, 6 and 7 approximated. 



A genus containing at present two European species, pro- 

 bably two or three North American, about twenty Australian, 

 and three from New Zealand. There is considerable variation 

 in the scaling of the second joint of palpi, which sometimes 

 forms a well-marked projecting tuft in front, whilst more com- 

 monly it appears only as a very slight projection, but these 

 are essentially modifications of the same type, and are con- 

 nected by such intermediate gradations that no separation is 

 possible ; and also in the neuration of the hindwings, where 

 some of the veins are liable to disappear, but here also every 

 gradation is found. The species are very similar in appear- 

 ance and habit ; probably most of the larvae feed on the seeds 

 of rush (Juncus). 



1. Forewings white . . . . . . . , imthyra. 



pale ochreous . . . . . . 2. 



2. Palpi with second joint tufted in front. . . . eucola. 



„ „ not tufted in front . . arenosella. 



39. Batr. eucola, n. sp. 



<? . 19mm. Head and antennae whitish-ochreous. Palpi 

 whitish-ochreous, terminal joint and apex of second more 

 brownish, second joint with scales projecting in front into an 

 angular tuft. Thorax pale brownish-ochreous. Abdomen 

 whitish-ochreous. Legs dark fuscous, apex of joints whitish- 

 ochreous. Forewings elongate, very narrow, parallel-sided, 

 long-pointed ; veins 6 and 7 stalked ; whitish-ochreous, some- 

 wdiat sprinkled with brownish-ochreous, towards costa broadly 

 sufiused with brownish-ochreous, costal edge fuscous towards 

 base ; a dark fuscous dot in disc before middle, a second on 

 fold obliquely before first, and a third, larger and somewhat 

 transverse, in disc before f : cilia whitish-ochreous, beneath 

 anal angle greyish-tinged, on costa marked with three dark 

 fuscous dots, with indications of tw^o dark fuscous lines at 



