Dec. 1898 ] 
Dyar : On South American Moths. 
231 
Table 2, groups the mites, beetles and flies, which have been held to be especially 
significant as time-indicators, and shows that the same species have been found after 
widely varying periods of interment. This is in direct contrast with the “principle ” 
hitherto deduced, from observations on exposed cadavers, “ that the products formed 
at different epochs in the progress of decomposition attract certain forms and repel 
others.” A principle which Megnin reiterates in a recent “ Note sur une collection 
d'lnsectes des cadavres interessants a connaitre au point de vue Medico-legal, offerte 
au Museum.” 
NOTES ON CERTAIN SOUTH AMERICAN 
COCHLIDIIDAS AND ALLIED FAMILIES. 
By Harrison G. Dyar. 
At my request Mr. W. Schaus kindly brought me a number of 
moths from his collection for examination. Many of them are his 
types of species recently described and the rest have been carefully 
determined by him. The following notes are based on this material. 
It includes the groups closely allied to the Cochlidiidfe as well as that 
family itself, and one species of Ptilodontidse, which was improperly 
described as a Cochlidian. 
Family DALCERIDHE. 
Synopsis of Genera. 
Fore wings without accessory cell; antennae with prominent scale tuft at tip. 
Vein 6 arising above discal vein ; vein 11 from cell. Dalcera 
Vein 6 arising below discal vein ; vein 11 stalked with 9 and 10.... Dalcerina 
Fore wings with accessory cell; antennae without scale tuft. 
Veins 9 and 10 long stalked, but distinct. Acraga 
Veins 9 and 10 coincident, 9 absent or invisible. 
Hind wings ovate, rounded.. Dafcerides 
Hind wings trigonate, inner margins long. Epipinconia 
Genus Dalcera H. -S. 
1855—Da/cera Herrich-Sceiaffer, Ausser. Schmett. I. 7. 
Type, abrasa H.-S.: also fumata Schaus, both before me. Mosch- 
ler has given the generic characters. Others species listed are obscura 
Schs., alba Druce, laxata Druce, atiipla Druce and lebema Druce, but 
I have not examined them. 
