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XVI. New Lepidoptera /row Dutch New Guinea. By J. J. 

 JoiCEY, F.L.S., F.Z.S., F.E.S., A. Noakes, F.E.S., 

 and G. Talbot, F.E.S. 



[Read May 5th, 1915.] 



Plates LV-LXII. 



The forms herein described were all taken by Messrs. A., C, 

 and F. Pratt, and, except where otherwise stated, were 

 collected at the Angi Lakes, Arfak Mountains, 6000 feet, 

 January to March 1914. The types are in the collection 

 of Joicey. 



Our thanks are due to Lord Rothschild, Dr. K. Jordan, 

 and G. T. Bethune-Baker, Esq., for kind help and the 

 opportunity of comparing specimens in their collections. 

 We are also indebted to Sir G. F. Hampson for useful 

 help with the Heterocera. 



Forty-four forms are described as new in the present 

 paper, and five of these represent the ? ? of forms already 

 described from (^ specimens. 



RHOPALOCERA. 



(By Joicey and Noakes.) 



Papilionidae. 



1. Papilio (Troides) tithonus prominens, subsp. nov. 



(Plate LV, fig. 1, c^; Plate LVI, fig. 1, S.) 



We are not sure, in the absence of more material, whether 

 the (^ described below is associated with the $ upon which 

 we base the subspecies. 



?. Cell-spot of forewing rounded, and all spots suffused with 

 dark scaling. Hindwing with a small cell-spot as in waigeuensis. 

 Roths. Abdomen with segments mostly black laterally and fringed 

 with black hair ventrally to a greater extent than in other forms 

 of the species. 



(^. Forewing above with costa and apex more broadly black and 

 costal patch reduced; in cellule 8 there is only a nebulous streak. 



TRANS. ENT. SOC. LOND. 1915. — PARTS III, IV. (JUNE) 



