208 
Mi^jouis B. Front on the 
is cliaracterised by the predominance of small, obscure 
greyish species, particularly of the group of genera 
Mimophyh, Narragodes, Psodopsis, Idialcis, though some 
totally unrelated species, such as Litkostege pax, Front, 
appear superficially to be in quite suitable company among 
tliem. The insects from the high Andes are of quite a 
different type, the very glossy scaling being a marked 
feature, irrespective of generic relationship. Phopcilodes 
otophora, Front, the two species of Chrismop)teryx, Teph- 
rinop)sis suhscripta, Front, Salpis carneitincta, Front, S. ruheiifi, 
Front, and Caiascia carnca, Front, are perhaps the chief 
examples; in several of them a more or less pronouncedly 
fleshy tone of colouring is observable. A few of these 
Andean species, or at least their genera, are already 
known to have some northward range, and no doubt 
further material (for example, from the Bolivian Andes) 
would more extensively exemplify these resemblances. I 
may mention that Perizoma sordesmis, Dogn., was described 
from Fern, Leucocliesias mcsargyrata, Mab. (under its 
synonym of Aspilates niveipmnaria, from Bolivia; 
while Salpis carneitincta, Front, has a very close Feruvian 
relative in S. pucchi, Dogu., and I have seen in M. 
Dognin’s collection a specimen, also from Feru, of a species 
apparently indistinguishable from Gnophos (?) oreas. 
Front.* I have already mentioned a Chilian element in 
this western fauna; the genus Salpis is best known in 
Chili, Xanthorhoiiedmondsii (Butl.) was originally described 
from Chili, and my new genus Baynia certainly belongs 
near some known Chilian genera. As we proceed further 
southwards, this characteristic becomes still more marked ; 
Berg’s Rio Santa Cruz species {Synneuria uniforrnata, 
Odontothera (?) crucifer aria), Mabille’s Pachropliylla oculata, 
from Aysen River, and the whole of the Magellan records 
point strongly in this direction. 
On commencing my work, I contemplated including 
tabulations for the determination of genera, in the hope of 
stimulating local research, as has been so admirably done 
by Meyrick and Turner in their Australian revisions, or 
by several others in faunistic works of the best type; but 
I found tliat a far-reaching study such as could have 
rendered this effective (especially in the case of the chaotic 
Boariniinae) would have delayed publication for an inde- 
* Peru is also tlie habitat of the two nearest allies of this species, 
rhanchani, Pogn., and insulHa, Warr. 
