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and grey are more pure, from the absence of the atoms, 

 and the Pseudoneura are well marked. 



Posterior wings less intense lemon yellow ; the very 

 broad dark-brown margin nearly reaching the discoidal 

 cell in the 3 lower divisions, which are also more pointed 

 than are the 3 superior ; the yellow spots enclosed by 

 this form a very regular submarginal band, the 3 inner 

 ones dusted with black atoms. The dark brown altogether 

 occupies about 3-5ths of the wing area, and the yellow near 

 the base is furnished with delicate, almost invisible brown 

 hairs. The base is warm brown. The abdominal fold 

 within the submedian nervure is pale fawn-brown, darker 

 nearer the inner margin. Under surface, pale primrose 

 yellow ; and very dark sepia brown ; abdominal fold pale 

 brown with a very short fringe. 



Outline of posterior wings dentated, with white lunar 

 spots above, fawn-coloured below. 



The different divisions of the subcostal nervure larger 

 than those in the Priamus group. 



Eyes chesnut brown ; femora with yellow scales over 

 nearly their entire length. 



Abdomen : dorsum fawn-brown, with lateral border of 

 yellowish grey ; subdorsum lemon yellow with lateral black 

 dots. Thorax : smoky brown above, lighter below : sides 

 with a slight spot of red. Collar orange yellow. 



Length of costa of upper wing 85, width of wing 47, 

 length of under wing 57, width 40 mm. ; length of 



abdomen and antennae 30, width of thorax 10, of abdomen 

 10, length of thorax with head 21 mm. 



C 1st pair: femur, 12; tibia, 8; tarsi, 13 mm. 

 Oflegsj2nd „ ,, 13; „ n; „ i 2 „ 



Urd ,» „ 12; „ 11; „ 16 „ 



Hab. Borneo. 



I am indebted to the kindness of Mr. Frederick Moore 

 for the privilege of figuring and describing these specimens, 

 from his splendid Indian collection. 



6* . In the British Museum. Body more than usually 

 robust, same size as that described above ; orange yellow 

 on upper wings extends exactly as in the var. ruficollis, 

 that is, less than half the length, so that Mr. Moore's 

 examples are subvarieties of Druce's var. No other 

 difference. Hab. Borneo. 



2 . Brit. Museum. Length of costa 87 mm. One 

 tear-shaped spot in the cell close to the discocellular 

 nervule, its apex pointed inwards. The pseudoneura 

 faintly represented. Under wings black, with their marks 

 more gracefully formed tha n in Mr. Moore's specimen. 

 Hab. Borneo. 



? . Brit. Museum. Length of costa 94 mm. Alto- 

 gether more robust than the above ; the grey of the 

 wings slightly more drab coloured. Hab. Borneo. 



In Plate 10 and fig. 4, vol. L, of this work is a represen- 

 tation of the under wing of a var. of the ? in the Brit. 

 Museum. Hab. Borneo. The shape of the yellow 

 collar is 



POMPEOPTERA AMPHRYSUS. 



VARIETY, RUFICOLLIS. 



Ornithoptera ruficollis, Butler, Trans. Linn. Soc, 2nd Ser. Vol. L, p. 552. (1875.) 



„ „ Distant, Rhopal, Malayana, V. I., t. 328-30 with plain fig., V. II., p. xxvii., a. 1. (1871.) 



„ „ Fickert, TJeber die Zeichn. der, Gatt. Orn., p. 739. (1888.) 



Troides Amphryaus, abr. (d), ruficollis, Walter Rothschild, Novit. Zoologies, n. 25, p. 232, Vol. II. (1893.) 



$ . Described by Butler. "Allied to O. Flavicollis : 

 wings smaller, comparatively narrower ; outer margin of 

 Primaries more distinctly inarched. Collar carmine. 

 Expanse of wings 5 inches 4 lines to 6-1. <? . Malacca." 



[The inarching of the outer margin is not absent in 

 Flavicollis, but in some examples quite as prominent.] 



? . Described by Distant. " Anterior wings above 

 blackish, with the following greyish markings : — 2 large 

 contiguous spots at the end of the cell, the area above and 

 beyond the apex of the cell elongately continued along the 

 nervules, and a spot near the apex of 2nd and 3rd median 

 nervules and of submedian nervure. Posterior wings 

 above very bright pale yellow; the neuration, a large 

 basal transverse patch extending from base of cell to costal 

 margin beneath the costal nervure, the abdominal margin, 

 and the posterior margin inwardly scalloped and con- 

 nected with a submarginal series of 6 larger spots placed 

 between the nervules, the 3 uppermost of which are irre- 

 gularly rounded, the 4th, 5th, and 6th pyriform, black, 

 near the abdominal fold and above the submedian nervure 

 the ground colour is dusted with dark greyish scales beneath 



as above, but the greyish markings on the anterior wings 

 paler beneath, and the posterior wings not dusted with 

 dark greyish near the abdominal margin. Body above, 

 with the head and pronotum black, the last with a narrow 

 carmine collar ; abdomen above greyish brown ; abdomen 

 beneath with about half of its lateral margin bright 

 yellow ; thorax beneath and legs black." 



Plain figs, of both surfaces given by Mr. Distant on 

 page 329 of his work, differ little from the var. sketched 

 from the Brit. Museum. 



Relative to " Var. ? PI. xxvii. a 1," he remarks, " this 

 variety differs from the typical form by having the sub- 

 marginal row of spots to the posterior wings distinctly 

 separated from the posterior margin." 



In my Plate (51, figs. 1, 2), I present portraits of the upper 

 and under sides of the S from an example in my own collec- 

 tion. All that need be said about it is that it differs only in 

 the slightest degree from examples of Flavicollis which I 

 possess, except that the red collar is wider than the yellow 



