( xxviii ) 



of Diurni, viz., Danais Archippus from the Marquesas, Tahiti, Eimeo, and 

 Rarotonga ; a long series ofDiadema Bolina, Linn., showing great variations 

 in the size of both sexes, and in the colour and marking of the females 

 from the different islands. Those from the Marquesas Islands (Faton-hiva 

 and Nuka-hiva) are small, the females very dark ; in Tahiti and Eimeo both 

 sexes are very much larger than in the Marquesas, some of the females 

 exceeding four inches in expanse, and are usually very dark coloured ; while 

 those from Rarotonga and Aitutaki vary greatly in size, and the females are 

 usually very handsomely suffused with red, in this respect approaching the 

 East Indian form. Nearly the whole of the specimens were bred from 

 larvae feeding on a species of Commersonia [MalvacecB). Diadema unicolor, 

 Salv. & Godm., a few from Rarotonga. Eiqjlcea Eleutko, Quoy & Gaimard, 

 a long series from Tahiti and Eimeo. Euploea sp. (as yet unnamed), a series 

 from the island of Aitutaki, varying iil colour from entirely black to a 

 handsome white-spotted form approaching Eleutho. Melanitis Leda, Linn, 

 a long series from Tahiti, Eimeo, and Rarotonga. Atella Gahertl, Guer., 

 a series from Tahiti, where it is one of the commonest butterflies. Lycccna 

 Bcetica, Linn., from Tahiti and Eimeo ; L. Plato from Rarotonga and 

 Aitutaki ; and L. communis, Bdv., from Tahiti and Aitutaki. The collection 

 included four species of Sphingidce, viz., Sphinx convolvuli (or a very nearly 

 related species), bred from larvae found in Tahiti and Eimeo feeding on 

 various species of Convolvulus, and from pupae dug up in sweet-potato 

 patches in Pitcairn Island ; also a very abnormal specimen of perhaps a 

 distinct species captured at Nuka-hiva, Marquesas ; Chcerocampa Erotus, 

 Cram., from Nuka-hiva and Tahiti ; a beautiful series of C. celerio, Linn., 

 bred from larvae found in Tahiti and Eimeo, feeding indifferently on " taro" 

 (Calocasia esculenta), "ape"(C. costata), and "■ wono" [Mo rinda citrifolia); 

 Macroglossa sp., taken numerously at flowers in Tahiti and Eimeo, and a 

 few bred from larvae found on Morinda citrifolia. It also included various 

 Noctuae, Geometrae, and Pyrales, particularly a species of Ophideres from 

 Rap-a or Oparo Island (also seen in Aitutaki and Tahiti), and Achcea 

 meUcerta, which was observed in the Marquesas, Tahiti, Eimeo, Rap-a, 

 Rarotonga, Aitutaki, and Atiu, but not seen in Pitcairn Island; most of 

 the specimens were bred from larvae feeding on Mimosa, Ricinus, &c., in 

 Nukahiva, Rap-a, and Tahiti, it being most abundant in the first-mentioned 

 island. 



Mr. R. M'Lachlan exhibited a specimen of Nemopteridcs, which was 

 captured by Mr. J. J. Walker at Coquimbo. This was remarkable as 

 hitherto no species of this family had been known to occur in America. 

 This new species appeared to come nearest to Brachystoma, Rambur ; 

 unfortunately the tips of its hind wings had been nibbled off by cock- 

 roaches. 



Mr. M'Lachlan also exhibited the photograph of the wings of a dragon- 



