200 
Lou is P), Front on the 
reise”) confine themselves to the extreme south, it seemed 
desirable to give myself the widest scope which my title 
warranted. The single exception, to which I have alluded, 
consists therefore in the exclusion of the part of Tierra 
del Fuego which belongs to Argentina; this could not 
have been logically included without the rest of the 
island, and in any case I should have had scarcely 
anything to add to the work of Staudinger. 
The localities where Mr. W. M. Bayne has collected are 
of the utmost interest, having been previously almost 
untouched by entomologists. His collecting followed the 
route of the Argentine Great Western Railway from Villa 
Mercedes to Las Cuevas, i.e. right away into the Andes 
as far as the Chilian frontier; lie has also taken a few 
species at stations on some of the branch lines. Although 
some of the geographical names quoted in the following 
pages may probably be unfamiliar to some readers, I have 
not thought it necessary to indicate their location, as they 
are stations on the railway. It may, however, be of some 
interest to quote a few of the principal altitudes from the 
official prospectus of the railway :—- 
Jletres. 
Villa Mercedes..513 
San Luis.719 
La Paz.500 
San Rafael.685 
Mendoza.753 
San Juan.633 
Cacheuta.1245 
Puente del Inca. 2720 
Las Cuevas.3151 
Puente del Inca is referred to by Mr. H. J. Elwes, in 
his valuable paper on “ The Butterflies of Chile ” {vide 
Tr. Ent, Soc. Bond., 1903, pp. 264-5), as a promising i 
locality for the entomologist, and Mr. Bayne’s experience ■ 
has borne this out; nearly all the species which he has ; 
there obtained seem to be new to science, though natur- ( 
ally with some relation to the mountain fauna of Chili, 
and, to some extent, to that of the highlands of Peru and 
Bolivia. 
In the fauna of so vast and varied a country as Argen¬ 
tina there is, as might be expected, great diversity; and 
although our knowledge of it, as regards the moths, is 
