596 Mr. A. G. Bygttr’s Descriptions of new 
short distance, then bends again and runs obliquely to 
inner margin parallel to the inner line; fringe dusky ; 
secondaries with creamy yellowish abdominal border ; 
fringe tipped with blackish ; body distinctly greyer than 
the wings ; under surface sordid sandy yellowish ; wings 
sericeous ; expanse of wings, 1 inch 2 lines. 
Tokei (Fenton). 
DREPANULIDA. 
173. Drepana acuta, n. s. 
Nearly allied to D. curvatula of Europe, but much 
larger, and of a more uniform redder colour above ; below 
with the lines less distinct ; otherwise similar ; expanse 
of wings, 1 inch 6—9 lines. 
Tokei (Fenton). 
Our examples of D. cwrvatula measure 1 inch 2—4 
lines in expanse. 
NOTODONTIDA. 
PLATYCHASMA, 0. g. 
Allied to Lophopteryx, but differing in having the 
costal margin of the primaries, from the base almost to 
the middle, projecting (like a shelf) beyond the true 
margin of the wing; the projecting lobe of the imner 
margin nearer to the base, as in Microdonta, the outer 
margin very feebly dentated; the subcostal branches of 
the secondaries forming a longer fork. 
174. Platychasma virgo, n. s. 
White, sericeous ; primaries with a black dot at basal 
sixth of costa, a second in the cell just beyond the 
middle, a black <-shaped marking on the disco-cellulars ; 
a large gravel-yellow patch, crossed by an abbreviated 
black dentate-sinuate line near base of inner margin, and 
extending into the projecting lobe, and an oblique gravel- 
yellow band, diffused internally and bounded externally 
by a slender zigzag black line, crossing the wing beyond 
the middle; secondaries slightly sordid towards outer 
margin ; under surface white ; expanse of wings, 1 inch 
5 lines. 
Tokei (Fenton), 
