''Euphalacra nigridorsata'' is a

moth Moths are a group of insects that includes all members of the order Lepidoptera that are not Butterfly, butterflies. They were previously classified as suborder Heterocera, but the group is Paraphyly, paraphyletic with respect to butterflies (s ...

in the family

Drepanidae The Drepanidae are a family of moths with about 660 species described worldwide. They are generally divided in three subfamilies, which share the same type of hearing organ. Thyatirinae, previously often placed in their own family, bear a supe ...

. It was described by Warren in 1897. It is found in the north-eastern

Himalayas The Himalayas, or Himalaya ( ), is a mountain range in Asia, separating the plains of the Indian subcontinent from the Tibetan Plateau. The range has some of the Earth's highest peaks, including the highest, Mount Everest. More than list of h ...

. The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the opposite wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingsp ...

is 39 mm for males and 45 mm for females. The forewings are pale ochreous with pale grey-brown suffusion and lines. There is a diffused grey-brown streak from the base through the cell, as well as three fine, very acutely dentate brown lines before the middle, marked with dark points on the veins. There is a blackish dot at the middle of the discocellular, proceeded by a pale ochreous elongated spot. There is a smaller blackish dot at the lower end of the cell and three strongly waved postmedian brown lines, marked with a brownish streak running through to the upper tooth and preceded by an oblique streak of the pale ground colour. There is a waved submarginal line and a row of black marginal spots. The hindwings have two dark brown antemedian lines, forming a continuation of the oblique brown streak of the forewings. There are two pale brown waved median lines and two waved postmedian lines, the outer one darker. The submarginal line and marginal spots are as in the forewings.''Novitates Zoologicae''. 4: 196

References

Moths described in 1897 Drepaninae {{Drepaninae-stub