Heterocerous Lepidoptera from Japan. 179 
slightly yellower than the ground colour of the wings ; 
body below fuliginous-brown, the spines of the hind 
tibixe varied with testaceous ; expanse of wings, 1 inch 
11 lines. 
Tokei (Fenton). 
A rubbed specimen of this species was also obtained 
at Yokohama by Mr. Jonas, and was confounded with 
specimens of A. ingrata. 
56. Agrotis fucosa, Ni. 8. 
Nearly allied to A. segetwm ; primaries with the same 
colour and pattern, excepting that they are slightly shot 
with lilacine, and that the outer or discal dentate- 
sinuate line is extremely indistinct; size, form, and 
coloration of secondaries as in A. saucia; expanse of 
wings, 2 inches. 
Tokei (Fenton). 
57. Spelotis lucens, nN. 8. 
Closely allied to S. senna of Europe, from which 
it differs in its greater size, distinctly broader primaries, 
in the greater size of the reniform spot, and paler 
tegule ; expanse of wings, 1 inch 8 lines. 
Tokei (Fenton). 
58. Opigena arenosa, 0. 8. 
Pale sandy yellowish brown ; primaries with the same 
pattern as in A. polygona of Europe, excepting that the 
discoidal spots are black with black-edged whitish 
margins ; secondaries rather greyer than the primaries, 
with pale sandy yellowish fringe ; wings below whitish, 
the primaries with dusky diffused discoidal area; two 
indistinct darker parallel discal lines and an indistinct 
darker disco-cellular lunule; a marginal series of black 
dots ; secondaries very slightly pearly, excepting towards 
the costa, where they are sparsely sprinkled with blackish 
scales ; two parallel externo-discal grey lines; a disco- 
cellular blackish lunule; a series of scarcely distin- 
guishable linear blackish marginal dots; body pale 
sandy browp ; expanse of wings, 1 inch 7 lines. 
Tokei (Fenton). 
