338 ON A NEW AGRIAS FROM THE-AMAZONS. (Mar. 21, 
5. On a new Species of Agrias from the Valley of the 
Amazons. By F. D. Gopman and O. Satvin. 
{Received March 11, 1882.] 
(Plate XIX.) 
Some time ago Mr. A Maxwell Stuart, whilst travelling on the Upper 
Amazons, captured a magnificent specimen of an Agrias, a genus 
much prized by all lepidopterists both for its rarity and beauty. 
On his return to England he kindly made us a present of it ; and as 
it proves to belong to a hitherto undescribed species, we have much 
pleasure in naming it after him. 
AGRIAS STUARTI, sp. nov. (Plate XIX. figs. 1, 2.) 
Both wings deep purplish-blue, bordered outwardly with a narrow 
metallic green band, beyond which it is greyish ; primaries with costa 
and apex black, this colour extends along the outer margin towards 
the posterior angle, where it fades into grey ; secondaries with costal 
region and inner margin broadly black: beneath, primaries black, 
apical third metallic green, reddish orange towards the base; secon- 
daries, basal half orange, outer half metallic green with three rows of 
black spots parallel to the outer margin, the middle one having 
central white spots. 
Exp. 3°7 inches. 
Hab. Yquitos, Amazons (4. Maawell Stuart). 
Mus. nostr. 
This insect is a close ally of A. beatifica, Hew., from which, however, 
it differs in the greater extension of the purplish-blue colour of the 
upper surface. Beneath there is but little difference, but the black 
spots of the secondaries are rather larger. 
Mr. Stuart captured a single male example of this fine insect 
whilst it was pursuing a specimen of Callithea buckleyi, which 
resembles it both in colour and markings, and with which it appeared 
to be fighting. No doubt, like other members of the genus, it flies 
about the tops of the highest trees, settling on the foliage out of 
reach, and rarely coming near the ground’. A. beatifica has also a 
Callithea which is found together with it, and likewise resembles it 
in coloration; this is O. degandii, the sexes of which, though con- 
siderably different from each other, are alike in the two species. 
Mr. Hewitson has given a very good figure of the male of A. 
beatifica in his ‘ Exotic Butterflies ;’ but the female (of which we have 
a single specimen procured by Mr. Hauxwell at Pebas on the Upper 
Amazons) differs so much that a short description and figure of it 
here may be desirable. 
AGRIAS BEATIFICA 2. (Plate XIX. figs. 3, 4.) 
Both wings black, with a broad metallic green band commencing 
* On the habits of the other Amazonian species of Agrias, see Bates, Journ. 
Ent. ii. p. 387. 
