130 Mr. A. G. Butler on Heterocerous Lepidoptera 



dull ocbreous, double, and undulated longitudinally ; 

 palpi tipped with testaceous ; antennae brown, with 

 whitish cilige ; abdomen dark ash-grey ; primaries below 

 shining bronze-brown, with silvery greyish interno-basal 

 area ; secondaries pearly white ; the costal area irrorated 

 densely with brown scales ; a black dot at the end of the 

 cell, a discal arched series on the veins, and a marginal 

 series ; body below dark fuliginous-brown ; collar blackish ; 

 abdomen pale towards the base, and with a red-brown 

 tuft on each side ; tarsi above black, with brownish or 

 white terminations to the joints, brown below. Expanse 

 of wings, 44 mm. 



? . A little browner than the male, the secondaries 

 especially washed with brown, but equally semitrans- 

 parent to those of the male ; dorsal crest apparently 

 grey, but the example is a little rubbed on the back. 

 Expanse of wings, 43 mm. 



" Las Zorras ; at sugar in December and January." — 

 T. E. 



This species comes nearer to A. segetum than to any- 

 thing else I have seen ; with it were placed two speci- 

 mens of the variety ambrosioides of A. saucia. 



28. Agrotis mamestrina, n. s. 



Primaries of the male extremely like Mamestra funrn. 

 both in colour and pattern, those of the female like 

 M. hrassiccB ; but the pale submarginal line regularly 

 sinuated ; ground colour smoky brown in the male, 

 blackish in the female, with the ordinary lines deep 

 black with pale borders ; the border of the discal line of 

 the male snow-white upon the interno-median interspace, 

 but not elsewhere ; the ordinary spots outlined in black, 

 the " orbicular " and " reniform " being very large, pale 

 in the male, and placed upon a pale patch ; fringe alter- 

 nately black and brown, with a basal series of white 

 fusiform dots on the brown divisions ; secondaries of 

 male pearly white, with rather broad smoky brown 

 external border and black marginal line ; fringe snow- 

 wiiite, dotted with brown ; of female suffused throughout 

 with smoky brown, though semitransparent, as in the 

 male ; fringe with a continuous subbasal dark brown 

 stripe ; thorax dark smoky brown ; abdomen paler, tufted 

 with white in the male ; wings of male below shining 



