in all the species, prolonged nearly to the apex, and 

 more pointed than in O. Cassandra ; divided at the base 



by a broad black line (an exaggeration of the ner/ure), 

 though not so much as in Cassandra. In the latter and 

 in Richmondia it sometimes broadens out, and even divides 

 almost into a separate patch at the apex. 



Secondaries. With 4 black spots on the upper, and 6 

 on the under surfaces. On the upper, between the 1st 

 and 2nd subcostal nervules and below the black spot is a 

 minute golden yellow dot, similar to a large spot on the 

 under surface between the costal and subcostal nervures. 

 The corresponding position of a large black spot, which 

 is immediately near this latter, is on the upper side of the 

 wing green, "but the yellow patch is repeated, though 

 hidden by the Primary wing in its set position. The 4 

 spots on the upper side are smaller and more regular in 

 form (sub-oval) than the 6 on the under side. A thin 

 longitudinal ray of black atoms is situated between the 

 submedian nervure and the 3rd median nervule, and from 

 this point upwards the green becomes more golden, 

 extending laterally to within the cell. The black outer 

 border is broader on the underside than in the upper. 

 Between the 2nd subcostal and discoidal nervules it sends 

 up a tooth-like broad patch that coalesces on one wing 

 with the black spot ; and in the nervules below it is not 

 so prolonged or scalloped ; the lower branch of the pre- 

 costal nervure, median nervure and its branches are 

 nevertheless covered with golden scales or atoms, in the 

 former making it very prominent in the dense black ; the 

 costal, subcostal, and branches are more or less densely and 

 broadly black, causing them to appear of double or treble 

 thickness ; the abdominal fringe is of a light burnt Sienna 

 colour, more like human hair. On the under sides of the 

 wings, all the greens when viewed obliquely, appear of a 

 rich shot purple and gold, impossible to represent with 

 the brush. The upper sides are very opalescent in certain 

 lights, coppery in parts, a very warm green opposite the 

 light, absolutely like Priamoptera Crcesus in a very 

 oblique position, and of indescribable beauty. 



Thorax. The red on the sides does not occupy so 

 much space as in some sps., and, as in the case of Cassandra, 

 is only faintly indicated behind the 3rd pair of legs. 



The length of the central green ray on the upper side 

 of the thorax is 9 mm. Abdomen, brilliant greenish lemon 

 yellow; 1st segment black except for a raised subtrian- 

 gular yellow spot above, in the upper portion of which 

 may be discerned 2 black specks, placed like eyes ; the 

 anal segment (or anal valves) with a triangulate black 

 spot, flanked on the upper part by dark spots ; subdorsal 

 slightly more ochreous yellow, and with minute lateral 

 dots on each segment. Abdominal fold, light pearly 

 brown. Eyes, dark brown. 



Primaries : length of costa 90 mm. ; width 45 mm. 

 Secondaries : length 55 mm. ; width (including abdominal 

 fold) 39 mm. Width of abdominal fringe 7 mm. ; length 

 of the fringe-hairs 7 mm. The abdominal fold extends 

 from near the base to the end of the anal angle. Length 

 of the thorax and head 23 mm. ; width 13 mm. Of 

 antennae and abdomen respectively 36 mm. 



Length of Legs : 

 1st pair : femur and tibia 15 mm. each ; tarsi 11 mm. 

 2nd ,, : ,, ,, 15 mm. each ; ,, 17 mm. 



3rd ,, : femur 14 mm. ; tibia 17 ; tarsi 20 mm. 



Hab. Amboyna. In the collection of Mr. Oliver Janson. 



On the Plate lb will be found two figures of the ? 

 (figs. 1, 2). 



Primaries : — Upper surface dark silky warm brown, 

 darker at the hind margin outside the white spots, also 

 at the base ; the whole in certain lights slightly coppery ; 

 the Pseudoncura faintly distinct ; the discocellular nervules, 

 with the adjacent sections of the median and subcostal 

 nervures and nervules silky black ; the rest of the neura- 

 tion the normal colour of the wings, though prominently 

 shown ; spots and marks a soft faded white, the lower 

 ones darkened by brown scales of great beauty of form ; 

 the space above and below the internal nervure with darker 

 brown hairy scales. 



Secondaries, a darker smoky silky brown, a little lighter 

 within the cell. Neuration only slightly blacker. Ab- 

 dominal fold and almost the whole of the upper part of 

 the wings with long silky brown hairs ; the light accumi- 

 nate marks rendered very brown by the brown scales on 

 the portions above the central black spots, and very dark 

 warm brown beneath them by the density of these scales. 

 The spots enclosed by the accuminate patches have a 

 central darker brown spot in each, seen best in certain lights. 

 Under sides rather lighter in corresponding dark, and 

 darker in corresponding light parts. White markings of 

 upper wings pure, not modified by brown scales ; on lower 

 wings soft ochreous white, with some delicate lemon yellow 

 suffusion on upper marks ; marks below the central black 

 spots with brown scales grouped from the border upwards ; 

 the brown black spots with centres darkest ; a few silky 

 golden brown hairs within the cell and submedian nervure. 



Thorax with much red beginning at Pro- and ending 

 at Meta-tborax, also following the lines of the femur of 

 two hind legs, with a spot on the front extending nearly 

 to the pronotum, and encroaching of the base of the 

 wings ; above very hairy, dark brown, almost black, with 

 greenish grey central stripe. 



Eyes dark brown. Abdomen yellow ochreous, dorsal 

 part soft greyish ochreous white ; anal valves more ochreous, 

 under side with brown-ochre scales ; subdorsal primrose 

 yellow ; articulations well accentuated by deep lateral 

 black dots. 



Length of costa 160 mm. ; breadth 54 mm. Secondary: 

 length 70, breadth 48 mm. iVntennas and abdomen 37 

 mm. each ; thorax and head 27 mm. ; width of thorax 

 13 and of abdomen 13 mm. ; of discoidal cell 17 (in the 

 S 15) mm. ; the 4th division of the subcostal nervure 7 

 (in the $ 4) mm. ; length of the 2nd, 3rd, and 4th division 

 of the same 21 (in the S 18) mm. ; and of the 1st, 34 (in 

 the S 33) mm., or a total of 55 in the 5 and 51 in the <? ; 

 articulation of the antennas 58 or 60 in the 2 , 48 in the 3 . 



Hab. Amboyna. In the Coll. of Mr. Oliver Janson. 



In figures 3 and 4 of PI. 1a, a var. of the 3 is given in 

 which the oval oblong black spots on the upper surface 

 of the Secondaries are larger than in the preceding ; there 

 is no yellow dot beyond the upper or first black spot : 

 the border is more regularly scalloped inward with black : 

 and the costal band of the Primaries is of a more equal 

 width to its whole extent, while the green is a brighter 

 golden on all the wings. Several differences may be also 

 observed on the under surfaces, and notably the bluer 



