( 393 ) 



distances proximall}' and distally to it, the latter in the ? nearly lost in olive-grey 

 clouding which follows it, occupying much of the distal i)art of the wing ; in the c? 

 the grey clouding is chiefly confined to the tornal half of the area ; apex and 

 extreme toriins mosth' pinkish in the ?, pale in the cJ, distal area about the medians 

 rather violet-grey than olive-grey, and containing two small red-brown blotches 

 (large spots). 



Under-surface with the colouring somewhat similarly arranged, but stronger 

 and brighter, the distal area of the hiudwing in the ? largely, in the <? in tornal 

 half rufous ; both wings with small black snbmarginal spots on either side of R^ 

 and hiudwing with one between M- and submedian fold ; (S forewing with the 

 pencil of dark hairs which characterises the typical section of Gcrusia. 



Ninay Valley, Central Arfak Blountains, Dutch New Guinea, 3500 ft., November 

 1908— January 1909, S (type) and ¥ in coll. Rothschild. 



There is no room to doubt that these are sexes of a single species, but the 

 diiierences in shajie, and esjiecially in liindwing venation, are very curious and very 

 disturbing taxonomically. They render my sectional arrangement of the genus 

 {Gen. Ins. 104, p. 54) untenable, for the <? would fall into f>ection I., the S into 

 Section III. The general coloration and effect of the upperside are remarkably 

 suggestive of the Australian e.ccxsatu, which is intermediate in shape between 

 the sexes of poli/daedala, has a less brightly coloured underside, and lacks the 

 pencil of hairs. The other Australian species, multicolora Lucas, is also near ; 

 in it and poh/daedala — the only two of which I have seen the sex — the ? has 

 shortly pectinate antenna and a stronger anastomosis of SC of the forewing than 

 I indicated in my diagnosis ; but multicolora is normal in the anastomosis of C 

 of the hindwing. 



As ab. maculata ab. nov. I describe a form with a black blotch in the 

 submedian area of the forewing distally to the postmedian line. Mount Kebea, 

 British New Guinea, 3000 ft., July 1903 (A. E. Pratt) 2 SS m coll. Bethune- 

 Baker. As these two entirely agree, and have also a slightly less brightly 

 variegated underside than the type form, it is just jjossible that they represent a 

 local race ; but the known inconstancy of these dark blotches, and especially 

 the exact analogy of the allied G. virescens Warr. and ab. tiridhnacula Warr. 

 {Nov. Zool. xiv. p. 120), render it most probable that they will prove to represent 

 an aberration only. 



0. Sarcinodes subfulvida ab. flaviplaga ab nov. 



c?. Bright liver-coloured, but distinguished from the hitherto described forms 

 ill having a large patch of yellow occupying a great part of the distal half of 

 forewing; tiiis starts at the end of the cell, with an irregular proximal boundary 

 (encroached ujion by the grouud-colour in the posterior angle of cell) and extends, 

 in its longer measurement, from close to the apex to >SM- ; distally it projects 

 roundly into the gronnd-colour on the medians and just behind R', and conies nearer 

 the teriuen (about 2-3 mm.) in anterior half, while it is almost connected between 

 the radials with a second, but less pure yellow terminal patcli which extends from 

 II' to M'. Hindwing with ill-defined yellow jiatch in centre. Postmedian line in 

 lioth wings very fine and yellow, on forewing accompanied proximally by small 

 blackish vein-dots. 



Near Oetakwa River, Snow Mountains, Dutch New (Jninea, up tn 3ri()i( ft., 

 October— December 1910 (A. S. Meek). Type in coll. Ruthschild. 



