24 Mr. E. Mey rick's Descriptions of 



dorsum beyond middle, seldom forming a distinct transverse blotch ; 

 sometimes a patch of blackish irroration on costa beyond this, or an 

 oblique streak of blackish irroration from above middle of disc to 

 dorsum before tornus, or more undefined blackish irroration towards 

 dorsum generally and across wmg beyond middle, all very variable 

 and sometimes wholly absent; a deeper oclireous or brownish 

 transverse spot on tornus, and a wedge-shaped upwards-oblique 

 streak from middle of termen, both often very faint; a slender 

 streak of fine blackish transverse striation along termen : cilia 

 whitish or whitish-ochreous, with ochreous subbasal shade. Hind- 

 wings grey-whitish, thinly-scaled, veins and termen suffused with 

 grey; cilia whitish, with faint grey subbasal line. 



Ecuador, Duran, low swampy country, in June {Parish) ; 

 twenty-three specimens. Varies remarkably, but easy of 

 recognition . 



Polychrosis oxymochla, n. sp. 



^ $. 12-14 mm. Head, palpi, and thorax dark grey. Abdomen 

 pale grey, anal tuft of ^ grey-whitish. Forewings elongate, pos- 

 teriorly rather dilated, costa gently arched, apex obtuse, termen 

 almost straight, rather oblique ; dark fuscous finely speckled with 

 whitish, variable in development; costa strigulated with blackish- 

 fuscous, with some small spots ; basal patch dark grey, edge blackish - 

 fuscous, angulated in middle, often interrupted above angle, some- 

 times followed by a fascia of grey-whitish suffusion; an oblique 

 rather narrow blackish-fuscous fascia from before middle of 

 costa, reaching more than half across wing, extremity pointed; a 

 quadrate blackish-fuscous blotch on dorsum before middle; a 

 moderate blackish-fuscous fascia from below middle of termen 

 obliquely upwards towards f of costa but not reaching it : cilia 

 rather dark fuscous speckled with whitish, with blackish-fuscous 

 subbasal line. Hindwings grey, lighter towards base, veins and 

 termen darker-suffused ; cilia pale grey, with dark grey subbasal line. 



Peru, Lima, in August {Parish) ; twenty-eight speci- 

 mens. Varies considerably in distinctness of markings; 

 nearly allied to the preceding, notwithstanding difference 

 of colouring. 



Bactra seria, n. sp. 



^. 18-21 mm. Head, palpi, and thorax pale brownish-ochreous, 

 palpi 3. Antennal ciliations f . Abdomen light grey, anal tuft pale 

 greyish-ochreous. Forewings elongate, rather narrow anteriorly, 

 posteriorly rather dilated, costa slightly arched, apex obtuse- 



