396 DR. O. STAUDINGER ON THREE’ [May 2, 
a more generalized form than either of the known species, showing 
more resemblance to the other types of Ziphioids. One of its chief 
points of interest is the locality in which it was found. Although 
Ziphius and Mesoplodon are both cosmopolitan genera, and Berardius 
an inhabitant of the Southern hemisphere, no specimen of the genus 
Hyperoodon has hitherto been met with anywhere but in the North 
Atlantic. 
2. On three new and interesting Species of Rhopalocera. 
By Dr. O. Sravupincrr. 
[Received April 24, 1882.] 
(Plate XXIV.) 
PapiLio HAHNELI, sp.n. (Plate XXIV. fig. 1.) 
This wonderful new species was discovered by Dr. Hahnel in the 
autumn of 1880 near Massauary, on the Rio Manés, Lower Amazons. 
He only tock the ¢ here figured and a somewhat damaged 9, 
just like the ¢, only a little larger, and the anal angle of the under 
wings not produced as inthe ¢. 
The fore wings of this species remind one of the genus Thyridia. 
Papilio hahneli comes nearest to P. triopas, Godt., although quite 
distinct from it. 
Length of the fore wing of the ¢ 48 millimetres, of the 9 51 
millimetres. Fore wings black, with three transparent smoky yellow 
spots at the base after the middle and near the apex. Hind wings 
yellowish, deeply bordered with black, the outer margin serrate and 
with a long tail on costa (4 sect. Herrich-Schiffer). 
The anal angle in the ¢ is very sharp and produced, in the 9 
very slightly so, but rather rectangular. 
Head, body, and legs black, excepting a carmine spot on each side 
at the base of the body; the female has a similar spot below the 
anal segment, which the male has not. There is also a trace ofa 
little reddish spot below the head (on the prothorax), and some 
reddish hairs on the mesothorax above the middle legs. 
I have named this species in honour of the discoverer Dr. Hahnel, 
who is doubtless one of our best collectors, and has discovered other 
new species of Lepidoptera on the Amazons, where he is still at 
work, 
HELICONIUS VENUS, sp. n. (Plate XXIV. fig. 2.) 
This new species was taken by Herr E. Trotsch on the river San 
Juan, in Colombia, in some numbers, together with almost equal 
numbers of H. vulcanus, Butler. 
Both species are at the first sight very similar, almost exactly so. 
They are black, with broad red spots behind the middle of the fore 
wings. ‘They are distinguishable by the following characters :—AH. 
venus has on the upperside a brilliant deep steel-blue reflection, which 
