NOVITATES ZOOLOGICAE XXII. 191.'i. 87 



and that probably as a variety of tayaUca. I may add tliat iiesopltila is also very 

 close to these three species iu appearance, but by the appendages is very 

 distinct. 



C. thetis (? is characterised by having the underside markings obsolete, or 

 nearly so, though occasional specimens and some races show them in some degree. 

 C. egena has these markings nearly as pronounced as in nesophlla or celebensis,Yf\Vo. 

 some trace of the dark shading of tagalica. In the postdiscal line the curve across 

 vein 1 of the forewing is much more prominent towards the hind-margin than in 

 the other species. One curious point that makes these specimens approach celebensis 

 and leads them right away from the usual form of thetis,* is that towards the apex 

 of the forewing the copper colour is divided by the veins as in that species ; the 

 black border is reduced all round more like phnedrus than thetis, really like 

 celebensis. 



The appendages are nearly as iu ordinary thetis, but the branches of the harpe 

 are a little ajiproximated. 



There is a specimen from Little Key that is apparently identical with egena ; 

 this is no doubt the form called eberaldahj Fruhstorfer. 



Two examples from Waigeu, possibly the geli>tt/iiaso( Fruhstorfer, have slightly 

 wider borders, the apical portion of copper distinctly notched, almost divided, the 

 underside markings almost faint ; appendages as egena. 



ferr/ussoni nov. var. 



There are two specimens from Fergusson Island (eastern end of New Guinea) 

 that have a remarkable form hardly suggesting thetis, but the appendages are 

 almost identical with those of the (continental ?) New Guinea form menestratus, 

 in the two branches of the harpe almost coalescing. Yet on close comparison 

 it really agrees to a great extent with menestratus. The dark shading of the 

 bases of the wings and of the inner side of the hindwing is rather greater 

 and has a greater intensity and different character given it by the veins, 

 especially of the hindwings, being much more outlined iu black ; indeed this 

 feature is trifling in menestratus. The underside markings are the same ; the 

 ground colour is pure white. 



soUta Butler, Ann. Nat. Hist. (5). x. p. 149 (1882) (New Britain). 



A d specimen from Herbertshohe, Neu Pommern (New Britain), is probably 

 the (S of this species (the type is a ? ). It has all the appearance of thetis ; it 

 differs from bougainvillei in possessing a definite (though small) discal mark, and 

 no detached pear-shaped marks. In a series it is very possible that i( would jirove 

 that the two forms are more identical than they at present appear to be. 



The appendages are nearly normal thetis. 



bougainvillei nov. var. 



Very close to a i supposed to be solita (from Neu Pommern), but is 

 without the discal mark of that insect, and has, which sotita (?) wants, the pear- 

 shaped costal detached portions of copper as in celebensis ; the lateral process of 

 the harpe is rather smaller than in solita, but both are very close to typical thetis. 

 Expanse 46 mm. The females are large (44 mm.), very dark in colour, with 



* Found also in var. mejie^tratus and a few other forms. 



