1875.] SPECIES OF SPHINGID. 13 
abdominal black strigz less defined : wings below altogether paler 
than D. lichenea, the transverse bars less defined, only two on 
secondaries. Expanse of wings 5 inches 3 lines. 
Rio (Stevens). Type, B.M. 
Placed by Mr. Walker with D. lichenea and described in his first 
paragraph as the female of that species, the true female being de- 
scribed more briefly in the second paragraph. 
27. DiLuDIA MELANOMERA, D. sp. 
3. Wings slightly more elongate, altogether much darker; the 
apical patch black, with a zigzag grey line running longitudinally 
through it; median band externally bordered and spotted at end of 
cell with black ; submarginal spots black instead of dark grey ; 
secondaries black-brown, a slight double nebulous streak from anal 
angle: body much darker, head and prothorax blackish; abdomen 
with lateral bars more continuous and blacker: wings below also 
darker, transverse lines much darker, more dentate; body below 
rather paler. Expanse of wings 4 inches 10 lines. 
Silhet (Dale). Type, B.M. 
This appears to be the northern form of D. discistriga. 
28. DiLupDIA VATES, 0. sp. 
Primaries above light grey, two or three whitish spots on basal 
half of costa and at centre of discoidal cell, also a double angulated 
discal series of brownish-edged lunate spots; a small oblique spot 
towards middle of costa, a less oblique litura crossing the cell near its 
termination, two parallel streaks within interspaces, a small lunule be- 
neath them, an irregular streak margining the apical patch, and a series 
of spots at the end of the nervures upon the fringe black-brown ; 
an indistinct discal series of brown dots; fringe partly white ; 
secondaries smoky brown, abdominal area paler; costa testaceous, 
anal angle grey, crossed by two brown lunules; thorax and head 
grey; pterygodes margined externally by a black streak; meta- 
thorax margined behind by a transverse angulated black streak ; 
abdomen pale brown, with a brownish lateral streak and a dorsal 
black line : wings below whity brown, external area and a discal bar 
slightly darker brown ; fringe spotted with blackish; palpi varied 
with white, pectus white; abdomen whity brown; tarsi of front 
pair of legs blackish. Expanse of wings 3 inches 6 lines to 4 inches. 
Ceylon (Templeton) ; Madras. Type, B.M. 
Var. Slightly darker, a geminate white spot near external angle 
of primaries. Expanse of wings 4 inches 4-9 lines. 
Silhet (Sowerby), Moulmein (Clerck). Type, B.M. 
Our example from Madras has a label on it, bearing the MS. 
name Sphinx vates. The species is nearly allied to D. incerta of 
Walker, from China; it was confounded, in the collection, with 
D. discistriga. 
29. DILUDIA NATALENSIS 0. sp. 
Primaries above snow-white, varied with grey, two transverse 
