new Species and Forms of Sphingide. 307 
LTippotion rubribrenna, sp. n. 
Fore wing reddish brown, paler than in H. brennus. A 
broad dark chestnut-brown transverse line from costa to inner 
margin, greatly elbowed at vein 5, where a similarly coloured 
discoidal blotch is extended outwards uniting with the trans- 
verse line. ‘Three more or less broken paler lines at equal 
distances across the cell-area. Beyond the heavy transverse 
line is a paler line, followed by another dark line which is 
considerably sinuous in its lower half. Between these lines 
the ground-colour is pinkish. A large dark apical shade 
merging with the last dark transverse line. Subterminal line 
composed of small crescents. Hind wing bright brick-red 
(of a different shade to brennus) with a blackish marginal 
band which is broadest at apex. Sometimes at tornus of fore 
wing there isa patch of colouring of the same colour as the 
hind wing. Thorax very dark chestnut-brown with white 
margins and a white mesial patch just behind the head. Fore 
wing below bright brick-red with a broad pale purplish 
marginal band, much the broadest at vein 5, where it is 
extended inwards as a streak as far as the lower discocellular. 
A well-marked transverse line beyond the cell and a second 
line at a distance of about 3 mm., parallel, but becoming very 
faint at inner margin. Between these two lines is a frag- 
mentary line nearer the second. Hind wing below similar 
to fore wing, but with two complete transverse curved lines 
and the marginal area not extended inwards as in fore wing. 
Hab. Dutch New Guinea, Central Arfak Mts., 3500 ft., 
Nov. 1908 to Jan. 1909. 
Type in Coll. Joicey. 
Genitalia not markedly different from HH. brennus, but 
decidedly smaller. The one preparation made was damaged 
in the mounting, but the clasp appeared to be the same. 
Cechenena sumatrensis, sp. 
Fore wing dull greyish brown, with an oblique black 
transverse line heyond the cell. A second line parallel from 
tip to inner margin, and two further less distinct lines ending 
in apex but radiating out towards tornus. A black mark at 
base. Beneath, black in basal half; reddish irrorated with 
small black spots in the distal area. Outer margin greyish 
brown terminated by an oblique blackish line as far as vein 4, 
where it is set back and continued thence to tornus. Hind 
wing above black, paler at the margins and with a yellow 
