Revista Chilena de Historia Natural 76 (1): 117-128, 2003
RESEARCH ARTICLE
Taxonomic revision of the genera Oratha Walker 1863 and Hasodima
Butler 1882 (Lepidoptera: Geometridae)
The genera Oratha Walker 1863 and Hasodima Butler 1882
from central and southern Chile are redefined and its species revised and described. The species are Oratha significata
Walker 1863, H. elegans Butler 1882, H. boreas (Butler 1882) and H. bartletti sp. nov. The
analysis of the types and the genitalia allow placing Aconcagua fessa Rindge in the synonymy of Aconcagua parva
(Butler) comb. nov. All species and their genitalia and distribution are described and illustrated. A key for species of
Hasodima is provided. The monophyly of the genera and its relationships to the allied taxa are briefly
discussed.
Key words:
Ourapterygini,
Aconcagua fessa, Boletobia sericea, taxonomy, Chile
