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NOTES ON HETEBOCERA, WITH DESCRIPTIONS OF NEW 

 GENERA AND SPECIES. 



By the HON. WALTER EOTHSCHILD and DR. KARL JORDAN. 



FOR some time jiast we have been working at several fiimilies of Helerocerd, and 

 publish in this paper a number of notes on structural characters and affinities, 

 as well as diagnoses of genera and species which are to our knowledge new to 

 science. The descriptions of new species are by Walter Kothschild, while Dr. K. 

 Jordan is responsible for tlie remainder of this article as far as it is undersigned 

 "K. J." 



We have thought it best to give the exact size of the wings of the new species 

 by measuring three lines — the anterior margin, exterior margin, and posterior margin. 

 The anterior margin is measured from base of subcostal nervure to tip of vein 8 of 

 forewings, or vein 7 of hindwings ; the posterior margin from base of subcostal 

 nervure to tip of vein P; and the exterior margin to forewings from tip of vein 8 

 to tip of vein 1'', that to hindwings from tip of vein 7 to tip of vein P, if not 

 otherwise stated. AM means anterior margin, EAI exterior margin, PM posterioi- 

 margin. 



If the wing of a species is different in general shape from that of an allied 

 species, the mere expanse (length of wings + body) does not .give u.s any idea about 

 that difference. 



SATURNIDAE. 

 1. Opodiphtera inversa Rothsch. sji. nov. 



Larger than astrophela Wlk., tawny ochraceous with grey shades. Ocelli much 

 smaller, but with a larger vitreous centre, that of hindwings considerably more 

 circular. The inner band on forewings is straight behind cell, not curved, and is 

 joined along the median vein to intracellular portion, forming two right angles. 

 The band is double, the inner side pinkish grey, outer side dark vinaceous. 'J'he 

 outer band is much nearer posteriorly the outev margin, and differs conspicuously, 

 as also do the other bands, by ha\nng the light half inside, while in uslrophda the 

 light half is outside. On hindwings is a curved double liand, of same colour as tho.se 

 on forewings, at basal half, which crosses cell at origin of vein 3 ; this band is absent 

 from the <? of astrophela. Half-way between ocellus and outer margin of hindwing.^ 

 is a band composed of three lunulated lines ; the two outer are dark vinaceous, the 

 inner one pinkish grey. Underside more sliaded with pinkish grey ; outer bands of 

 both wings indicated, but pinkish only. Collar grey ; rest of body similar to wings. 

 Expanse : forewing AM .55 mm. ; EM 3() mm. ; I'M 33 mm. 

 hiudwing „ 34 „ ; „ 30 „ ; „ 37 ,. 



ll(dj. ilailu, British New Guinea (Anthony, July 1895); 1 6. ^^'. IJ. 



