732 THE BUTTERFLIES OF NEW ENGLAND. 



group, distant at the nearest some fifty iniles, not until 1869. Yet in 

 Upolu it became one of the eonimonest butterflies in 1870. It was not 

 until 1868 that it was discovered at Tongabalu, one of the southern of the 

 Tonga Islands, but in the same year it was seen in the open sea five hun- 

 dred nautical miles to the southeast. In 1869 it had appeared at Rora- 

 tonga, one of the Hervey Islands, five hundred miles or more away. In 

 1870 to 1872 it was found on Huahine and Tahiti of the Society Islands, 

 again five hundred miles or more distant. So far the account of Professor 

 Semper. But Mr. James J. Walker, who sailed in the South Seas in 

 1883 and found Anosia nearly everywhere one of the commonest butter- 

 flies, states that he was informed at the Marquesas Islands, which lie to the 

 northeast of the Society Islands, again at the distance of some five hun- 

 dred miles, by a Roman Catholic missionary residing there forty years, 

 that he distinctly remembered seeing the first specimen there about the 

 year 1860 ; it should be noted that the Marquesas Islands are nearly as 

 distant in a southeasterly direction from the Hawaiian Islands as the 

 Carolines are to the southwest. Mr. Walker also found the butterfly on 

 the Hervey and Society Islands and at Oparo, one of the Andaman group, 

 in 28° south latitude, though it had not then reached Pitcairn Island, which 

 lies much farther east and som^ewhat fiirther north. These statistics indi- 

 cate its movements from the Caroline Islands in an easterly and south- 

 easterly direction, but it has also left its marks by the way, in a southward 

 extension from this route of travel. For it has reached Waigiou, New 

 Britain, New Ireland, New Guinea, the Louisiade Islands, every part of 

 Solomon and New Hebrides groups, the Duke of York Island, the Loyalty 

 and Fiji Islands, New Caledonia, Norfolk Island, the northern island of 

 New Zealand, the entire eastern coast of Australia, from Cape York south- 

 ward even as far as Hobart Town in Tasmania. It reached Lord Howes 

 Islands in 1870, Clarence River on the opposite coast of Australia, in 

 1871, Melbourne in 1872 and has now extended even to Celebes, and 

 according to Kirby, to Java. 



It thus appears that it now possesses a territory in the Pacific Ocean of 

 at least 110° of longitude and 65° of latitude. But this is by no means 

 all. It has moved also in some strange way in the opposite direction from 

 the American continent. It has long been known in the Bermudas as one 

 of the extremely few butterflies to be found on that island. Specimens 

 now in the collection of Godman and Salvin were taken in 1864 in the 

 islands of Fayal and Flores, but it seems not to have been since recorded 

 from the Azores. It has, however, made its appearance on the continent 

 of Europe at LaVendee on the Atlantic coast of France, and a number of 

 instances of its capture in England have been signalized within the last ten 

 years. These instances are so numerous and recorded for so many differ- 

 ent years that it would seem highly probable that the butterfly has been 



