Eupithecia juncalensis is a moth in the family Geometridae. It is found in the Valparaíso Region (Aconcagua Province) in Chile., 1987, The Eupithecia (Lepidoptera, Geometridae) of Chile. Bulletin of the American Museum of Natural History 186 (3): 269-363. The habitat consists of the Central Valley Biotic Province.
The length of the forewings is about 9 mm for males and 9.5 mm for females. Adults have been recorded on wing in November.
Etymology The specific name is based on the type locality.
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