442 Mr. A. G. Butler on new Species 
blotch: body below white; abdomen belted with grey. 
Expanse 2 inches 6-8 lines. 
Yokohama (Jonas) ; Hakodaté ( Whitely). 
Deroca, Walker. 
200. Deroca phasma, n. sp. 
3. Hyaline, snow-white: primaries with three grey spots 
across the basal half of the costa, a fourth above the end of the 
cell, and a larger spot at the end of the cell; a large apical 
patch crossed by a trifid white patch, and a similar smaller 
patch at the external angle grey: antenne with grey pectina- 
tions; abdomen grey, crossed by white segmental lines. 
Wings below nearly as above, but the grey markings darker 
and the costal spots on the basal half confluent ; body below 
cream-coloured. Expanse 1 inch 4 lines. 
9. Larger, iridescent, and with much paler markings. 
Expanse 1 inch 6 lines. 
Yokohama (Jonas). 
LomasPILis, Hiibner. 
201. Lomaspilis opis, n. sp. 
Wings creamy white: primaries with the basal fourth, 
three large blotches across the centre (the two uppermost con- 
fluent), the apex, outer margin, and external angle pale pur- 
plish brown : secondaries with three blotches across the cen- 
tre, the apex, a subapical marginal spot, outer margin, and 
anal angle pale purplish brown. Body brown, legs testa- 
ceous. Expanse 1 inch 1 line. . 
Yokohama (Jonas). 
Nearly allied to the European L. marginata, but differing 
in the brown blotches across the centre of the wings. 
Ligiide. 
PACHYLIGIA, n. gen. 
Allied to Ligia, with similar antenne and neuration ; the 
body much more robust, broader ; the primaries much wider, 
with more strongly defined external angle; fringe shorter. 
Type P. dolosa. 
202. Pachyligia dolosa, n. sp. 
Primaries fuliginous brown, varied with bronzy brown ; 
base longitudinally streaked with black; two irregularly 
sinuated central black lines, and between them an irregular 
