238 Mr. E. Meyrick's Notes on 



Izatha (Semiocosma) mctadclta, sp. n. 



$ . 17 mm, 9- 19-25 mm. Head fuscous sprinkled with whitish, 

 with well-marked conical horny frontal prominence concealed in 

 scales. Palpi white, second joint mixed with dark fuscous, with 

 dark fuscous basal and subapical bands, terminal joint mixed with dark 

 fuscous at base, with dark fuscous median band. Antennae dark 

 fuscous ringed with whitish. Thorax whitish, mixed with fuscous 

 in g , on patagia ochreous-tinged, anteriorly suffused with dark 

 fuscous. Abdomen dark fuscous mixed with whitish, two basal 

 segments ferruginous-ochreous. Fore-wings elongate, moderate, 

 costa gently arched, apex obtuse, termen straight, rather oblique, 

 rounded beneath ; brownish -ochreous or fuscous, more or less 

 sprinkled with whitish and dark fuscous, darkest in <$ , towards costa 

 and dorsum suffused with whitish in $ '■> dark fuscous marks at base 

 of costa and dorsum ; a small fuscous spot on costa at -J, and a larger 

 triangular one on dorsum at |, latter followed in $ by a patch of 

 ochreous suffusion ; a dark fuscous subquadrate spot on costa before 

 middle, and a larger subtriangular one extending on costa from 

 middle to £- ; two dark fuscous transverse discal spots before and 

 beyond middle, touching these costal spots respectively, partially 

 edged with black and then with white, first suboval, mostly filled 

 with raised scales, second curved -reniform, lower posterior margin 

 broadly interrupted ; in £ two undefined longitudinal discal black- 

 ish streaks traversing these spots ; an ill-defined cloudy whitish 

 curved subterminal line ; a terminal series of small dark fuscous 

 spots: cilia fuscous sprinkled with whitish. Hind- wings in g black- 

 ish-fuscous, in § dark fuscous, lighter anteriorly ; cilia fuscous, with 

 darker basal shade. 



Three specimens, Wellington. Nearest to /. epiphanes, 

 but very distinct ; the conical horny frontal prominence is 

 a noticeable structure; it recurs (though previously un- 

 observed because slight and concealed) in a less developed 

 form in some but not all of the other species, and is 

 doubtless adaptive. 



Gymnobathra bryaula, sp. n. 



£ . mm. Head and thorax ochreous- whitish, somewhat mixed 

 with pale greenish -yellow, thorax with two small anterior dark 

 fuscous spots. Palpi whitish, base and a subapical ring of second 

 joint, and subbasal and subapical rings of terminal joint dark 

 fuscous. Antennae ochreous-whitish, basal joint dark fuscous above, 

 ciliations 2. Abdomen ochreous-whitLsh, second segment more 



