of Heterocera from Japan. 79 
distinctly black-spotted ; secondaries similar. Expanse 1 
inch 10 lines. 
Yokohama (Jonas). 
Leucaniide. 
64. Mythimna placida, n. sp. 
Nearly allied to the North-American M. pseudargyria, but 
with the primaries and thorax pale sandy greyish, the orbicu- 
lar and reniform spots less distinct, and the double discal 
series of black dots less complete; secondaries deep grey, 
blackish externally, with whitish fringe: primaries below 
blackish, with the costal and external borders whitish, crossed 
near the apex by a black dash; a marginal series of black 
dots ; secondaries whitish, irrorated with black, a dot at the 
end of the cell, a discal series and a marginal series black ; 
body below whitish. Hxpanse 1 inch 10 lines. 
Yokohama (Jonas, Pryer). 
65. Mythimna rufipennis, n. sp. 
Allied to WM. turca, but with barely an indication of the 
transverse lines on primaries, and with the secondaries and 
abdomen shining whity brown with rosy margin; below much 
paler than M. turca. Expanse 1 inch 6 lines. 
Yokohama (Jonas). 
66. Mythimna grandis, n. sp. 
Allied to M. turca, but considerably larger; the male 
greyish, with the two transverse dusky stripes indistinct. In 
this species the inner stripe runs parallel to the outer as far as 
the middle of the discoidal cell, and then diverges abruptly 
inwards to the costal margin, the outer stripe is regularly den- 
ticulated: the under surface is whity brown, with a pink 
tinge; a dot at the end of each cell and a discal transverse 
stripe grey; a marginal row of black dots. Expanse ¢ 2 
inches 1 line, ¢ 2 inches 4 lines. 
3 2, Hakodaté (Whitely) ; 2, Yokohama (Jonas). 
67. Mythimna divergens, n. sp. 
Allied to the preceding, but darker, the reniform spot of 
primaries larger; the male brownish sericeous, or like the 
temale ; the female with a large central ochraceous nebula on 
the primaries, and an ill-defined red-brown patch immediately 
beyond the reniform spot ; the mner transverse stripe of pri- 
maries slightly irregular, but diverging throughout from the 
