DICHROMA ARCUALIS. 
PLATE XXX. Fig. 3. 
The fore wings in this species are of a dirty and 
rather pale hrown colour, ornamented with white 
markings ; near the base of the wing is a strongly 
furcate mark, the anterior hranch of which is di- 
lated ; parallel to the inner margin of the wing is a 
white slender bar, which is connected near the 
middle of the wing with a series of white crescents 
placed obliquely, and extending upwards to the 
middle of the wing, above which is a clavate spot ; 
beyond this, and extending in an oblique direction 
to the tip of the wing, is a strongly denticulated 
white line; and there is a row of white arches 
along the outer margin of the wing, diminishing in 
size as they extend towards the apical angle. The 
hind wings and abdomen are white, slightly tinged 
with brownish. 
The expansion of the fore wings is one inch. 
