COLLECTING ON THE GIRIWA RIVER 173 



very prevalent in my camp on this trip. Almost 

 the whole time I had five or six men down. The 

 New Guinea boys got it as badly as the others. Both 

 my two white assistants also suffered from sores on 

 the legs. 



Getting to a position under the Owen Stanley 

 Ranges I found the collecting very fair, and I was 

 greatly rejoiced at last when I obtained the first male 

 specimen of the Troides alexandrae. In sending it 

 home, I wrote to Dr. Jordan of the Tring Museum, 

 suggesting to him that since this was the most 

 important new discovery I had yet made among 

 lepidoptera, it should be named after the Hon. 

 Walter Rothschild, but this Mr. Rothschild would 

 not agree to, and it was named Troides alexandrae 

 on account of its similarity to the Troides victoriae. 

 On the occasion of this visit to the district I got on 

 fairly well with the natives, but the collections on 

 the whole were somewhat disappointing. I stayed 

 there about three months, which was my usual stay 

 for an inland collecting place. During that time I 

 obtained several specimens of the long-winged 

 Troides alexandrae, which measured eleven inches 

 across the wings and were larger than the chimcera. 



They fly very high, I noted. I also obtained about 

 two dozen larvae of this Troides. These larvae 

 varied considerably. The spines in some were all 

 blood-red, with a white saddle and one spine on each 

 side white and tipped with red. Others had spines 



