with pectoral red spots as usual ; the head broad, the 

 yes warm dark brown, with broadley light borders ren- 

 dering them very prominent, just as in the two sexes of 

 Paradisea ; but the precostal cell is not light coloured as 

 in Paradisea and Tithonus. The abdomen in shape and 

 relative length more closely resembles those of the above 

 species than that of 0. Priamus, and is rather auburn in 

 colour. Altogether, if we may judge by this one ? , we 

 have a species transitional between the two genera 

 Schcenbergia and Ornithoptera. But I am unable to 

 recognise any close relationship to O.Pegasus or 0. Aruana, 

 or the fine vars., one of which Mr. Oberthiir described 

 under the name Kirschi. A comparison of the three 

 forms in the plates originally published will justify my 

 contention. 



The length of the costa of the anterior wing in a right 

 line is 125 mms.; of the posterior margin, 85 mms. ; of 

 the interior margin, 69 mms. ; of the base, 8 mms. ; or a 

 marginal linear extent, (allowing for the curvature of the 

 costa, which adds 8 mms. more to its real length), of 295 

 mms. ! or over 1275 inches. The length of the costa of the 

 posterior wing is 71 mms. ; of the posterior margin, 58 

 mms. ; of the interior or abdominal margin, 69 mms. ; 

 and of the base, 6 mms., all of course subject to a very 

 great augmentation if the linear value of the curves were 



taken into account ; the greatest width is 60 and the greatest 

 length of the wing 87 mms. The costa of the anterior 

 wing of this species is therefore 22 mms., or about 7-8ths 

 of an inch longer than that of the largest 2 example of 

 O. Priamus figured on plate ia of this work, and nearly 

 as much longer than the costa of D. Antimachus to be 

 found on PI. II. The length of the abdomen is 41 mms. ; 

 the antenna? are of the same length ; the thorax with the 

 head 27 mms. 



Habitat: New Guinea, the home also of Paradisea. 



The position assigned to this form, which is at present 

 the only example known, can at the best be only provi- 

 sional. A discovery of other 2 ? , or still better of the $ 

 may completely falsify all our conjectures, and even give 

 us a male unlike either Paradisea, Tithonus, or Victoria, 

 although I can hardly anticipate that it will resemble 

 Priamus. 



This example of M. Oberthur's is very ragged at the 

 outer margin of the wings, and it is impossible to say 

 whether it has any light fringe lunules or not. Mr. 

 Oberthur in a letter informs me that the femora of the 

 legs are not white as are those of Paradisea ; but neither 

 are they in either sex of Tithonus. 



