﻿66 



not so perceptibly as in Nephereus. Plateni has otherwise 

 all portions of the body of the same form and colour as 

 Nephereus, especially the red collar and red spot on the 

 breast, and also the black upper part of the abdomen (in 

 2 2? of black grey) and the under yellow part with very 

 distinct black dots, especially in one 2 . If a large 

 number of Plateni <? $ should later on exhibit on the 

 upper sides of the secondaries more yellow patches than 

 the present specimens, this would advocate (' sprechen 'J 

 its being a Palawan form of Nephereus, therefore the 

 present $ gives the impression of a quite remarkable 

 species."* 



S . The red collar of this species is very narrow, and the 

 red of the breast is not so extensive as in some other 

 forms. On the metathorax it forms a moderate-sized 

 red spot ; a minute red spot impinges close to the back 

 of the pre-costal nervure ; the red then continues in an 

 interrupted narrow line across the mesothorax to the base 

 of the costa of the upper wing, to re-appear on the upper 

 side as the red collar — (the exact form of which I will 

 figure in another section of this work) . 



The abdomen is of a shining bluish-black on the upper 

 side, becoming brown towards the anal extremity, where 

 it tapers off to a point as it leaves the last segment of 

 the abdomen, showing the delicate ochraceous grayish- 

 white which is the prevailing colour of the anal extremity 

 beneath. The underside of all the segments is a fuscous- 

 greenish yellow, the yellow scales of the ist segment being 

 more lemon colour, as are the longer scales or hairs of the 

 sub-dorsal portion. The thorax is quite black ; the eyes 

 are red-brown, the space -between velvety-black. The 

 length of the costa 67 ; of the hind wing 38 ; width of 

 front wing 40 ; and of hind wing 28 mm. Length of 

 antenna and abdomen 27 ; of thorax with the head 18 mm. 

 Length of legs 



ist pair, femora 10; tibia, 8; tarsi, 12 mm. 

 2nd ,, ,, 11 ; 11 ; ,, 13 mm. 



3rd ,, ,, 10; ,, 11?; ,, I2?mm.f 

 Articulations of antenna 44. 



2 . No red collar. The red spots of the breast are two 

 in number, moderately large, and triangular on meta- 

 thorax ; larger, but same shape on mesathorax, not 

 reaching quite to the base of the costa of the upper wing. 

 The abdomen above is of a soft light-fawn brown, in 

 singular contrast and harmony with the wings ; laterally 

 it is a subdued white, more yellow on ist segment, slightly 

 fawn-tinted at anal segment ; the subdorsal parts are 

 more yellow, with longitudinal black cloudings and seg- 

 mental black dots distinct from the cloudings on the last 

 four segments, but coalescing with them on the others. 

 The thorax and collar are a mixed light and dark brown, 



•Translated from Dr. Staudinger's Paper in the "Correspondence-page of the 

 Entomological Society ' Iris ' in Dresden." No. 5, July, 1888, page 274. 



t The tibia and tarsi were lost, so the measurements are only provisional. 



the edges of the tegulae darker than the rest. The length 

 of the costa 76, width 40, length of hind wing 46, width 

 33 mm., of antenna and abdomen 27, and of thorax, 

 including head 20 mm. Of legs 



ist pair, femora — ; tibia, — ; tarsi, — mm. J 

 ■2nd ,, ,, 11; ,, 11; ,, 15mm. 



3rd ,, ,, 10; ,, 12; ,, 15 mm. 

 Articulations of antenna 52. 



It is only when we examine the underside of the S , with 

 its resemblance to the <? of Nephereus, and notice the still 

 closer likeness of the 2 to that of the latter also that 

 we are able to regard this form as being possibly a local 

 var. of Nephereus. The appearance of the upper side of 

 the 6* would certainly lead us to a different conclusion. 



Hab. Island of Palawan, Philippines. 



I am indebted to Mr. Walter Dannatt, who received it 

 from Dr. Staudinger of Dresden, for the opportunity of 

 figuring this species ; his specimens being good and valu- 

 able typical examples. 



<7 . (In the collection of Mr. A. H. Grose-Smith) has a 

 rather more extensive area of yellow in the secondaries, 

 extending over half the width of the space between the 

 2nd sub-costal and discoidal nervules, and a small portion 

 of the space within the discoidal cell, — or 12 mm. at its 

 broadest, 10 mm. at its narrowest, and 26 mm. at its 

 greatest length. On the undersides of the same wings, the 

 scattered black and yellow atoms, so well exhibited in Mr. 

 Dannett's example, between the 2nd sub-costal, the discoidal 

 and median nervules are as nearly as possible absent, the 

 whole space within the borders being a nearly immaculate 

 lemon yellow. If this specimen be looked at in the same 

 way as when we examine the Philippines species, P. Magel- 

 lanus for its wonderful opalescence, we shall see an almost 

 equally beautiful change, for the yellow will give place to 

 the most brilliant warm emerald and Veronese green. This 

 effect is not so well defined in Mr. Dannett's specimen ; 

 on the other hand if the yellow be viewed with trans- 

 mitted light under favourable circumstances, it appears 

 so intensely brilliant as to suggest, as Mr. Grose-Smith 

 remarked when we were examining it, the intensity of 

 the electric light ! Length of costa 67 mm. 



Habitat, Palawan. Received from Dr. Staudinger. 



2 . (Also in the collection of Mr. H. Grose-Smith.) 

 The upper surface of primaries does not differ from 

 the example figured ; secondaries, a small semilunate 

 black-atomed yellow spot on the black border between the 

 ist and 2nd sub-costal nervures, similar to those found on 

 the 2 of Nephereus. In no other respect is there any 

 variation. Length of costa, 85 mm. Hab., &c, as above. 



The type of each sex is in the collection of Dr. 

 Staudinger. 



X The first pair of legs was lost. 



