310 Mr. A. E. Weman on New and Unrecorded Species 
to April 11, during a period of five years. Among the 
series are specimens of ab. a/licollis taken during the 
same period. B. robustwm is always found at rest on the 
trunks of various species of dwarf oaks (O-nara = Quercus 
erispula, Bl.; Ko-nara = Quercus glandulifera Bl. and 
Kunugi = Quereus serrata, Thnbg.), on which the larva 
feeds. It is one of the earliest moths to appear, and 
I have rarely seen it later than the middle of April. 
It is difficult to find, as its wings as a rule harmonise 
so perfectly with its resting-place on the bark of the oak 
trees. Warren remarks concerning ab. albicollis, which 
is unrecorded by Leech: “ Butler’s types, f and @, have 
both the wings and head of the same dully grey-brown 
tint; ina ¢ from Yokohama, while the central area of 
both wings and apical area of forewings are whitish in 
ground-colour thickly speckled like the rest of the wings 
with dark, the upper half of face and the whole breadth 
of the shoulders are clear white. The third example 
in the British Museum Collection, also a f from Yoko- 
hama, agrees with the present specimen in these respects; 
whether this paler form is peculiar to the Yokohama 
district or not remains to be proved.” 
Type of ab. albicollis, $ in B. M. 
Local distribution. Hondo (Yokohama, Tokyo). 
Habitat. JAPAN. 
Collection number, 476. 
247, 
Lycia tortuosa, sp.n. (Plates XXX, fig. 1, 7; 
XXX] fig27599.) 
¢. Antennae bipectinate. Forewings dark grey suffused with 
blackish especially on the basal two-thirds; antemedial line black, 
curved, indented at costa and about middle; postmedial line black 
with a deep sinus before the middle and a lesser one under 
vein 2; there is a dusky transverse shade between the ante- and 
postmedial lines but nearer to the latter; submarginal line whitish, 
indistinct. Hindwings rather paler on basal three-fourths, trans- 
verse lines appear to be continuations of those on the forewings, and 
there is a black dot on the medial one. Underside pale greyish 
suffused and clouded with fuscous ; forewings have a blackish discal 
mark and three transverse lines, the outer one which is most distinct, 
black, almost erect, but slightly bent opposite end of the cell; 
hindwings have a black discal spot preceded by a dusky transverse 
