Vol. I] WILLIAMS— BUTTERFLIES AND HAWK-MOTHS 307 



out to sea, being also seen from the schooner "Academy" 

 which was at anchor over a mxile from shore. 



Lugubris was observed on the higher portions of Indefat- 

 igable Island (November, 1905), Albemarle (March, April 

 and May, 1906), while an old pupal shell which seemed refer- 

 able to this species, was found high up on Charles Island (June, 

 1906). It is a common insect in the American tropics. 



There is some variation in color among the ten examples 

 taken, the scallops of the wings seem deeper than in some speci- 

 mens from Florida with which I compared them. 



Galapagos— Alar expanse. $ 49, 53, 63 mm.=55 mm. 



5 53, 53, 58, 60, 60, 60, 63 mm.=58.1 mm. 



Florida— Alar expanse. S 60, 62, 62 mm.=61.3 mm. 



2 72, 78, 79 mm.=76.3 mm. 



The three smallest 9 5 from the Galapagos were reared, 

 which probably accounts for their size. There are several 

 larvae and one pupa preserved in spirits. 



2. Deilephila lineata Fabricius, Syst. Ent., 541, 1775. 



The "White-lined" Sphinx, which is by no means the com- 

 monest of the Hawk-moths of the islands, has heretofore been 

 collected in the Galapagos, by the Albatross Expedition (1887- 

 88), which secured one male from Charles Island. Of the five 

 specimens secured by me in 1906, three were reared from larvae ; 

 and the series when compared with lineata from Shasta county, 

 California, averages considerably smaller in size. 



Lineata larvae were found at Wreck Bay, Chatham Island 

 (February 20, 1906), where the two-color forms were 

 observed ; on Charles Island in early March, as less advanced 

 in growth than on the preceding island; and at Tagus Cove, 

 Albemarle Island, in late March, when many of the caterpillars 

 had already pupated. 



Adults were observed in March (Charles Island), and at 

 Villamil (Albemarle Island), in early May, and in both cases, 

 in the early afternoon. The insect is certainly double-brooded 

 and probably triple-brooded in the Galapagos ; a small per cent 

 of the late insects probably passing the dry season as pupae. 



Distribution: Charles, Chatham, and Albemarle Islands, 

 and probably elsewhere in the Archipelago. It occurs also in 

 the Hawaiian Islands, and is the best known North American 



