''Trichaea nigrans'' is a

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of ...

in the family

Crambidae The Crambidae are the grass moth family of lepidopterans. They are variable in appearance, the nominal subfamily Crambinae (grass moths) taking up closely folded postures on grass stems where they are inconspicuous, while other subfamilies includ ...

. It was described by

Herbert Druce Herbert Druce, FLS (14 July 1846, in London – 11 April 1913, in London) was an English entomologist. His collections were acquired by Frederick DuCane Godman (1834–1919), Osbert Salvin (1835–1898), and James John Joicey (1870–1932) b ...

in 1902. It is found in

Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Fi ...

and

Bolivia , image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square p ...

. The forewings and hindwings are

hyaline A hyaline substance is one with a glassy appearance. The word is derived from el, ὑάλινος, translit=hyálinos, lit=transparent, and el, ὕαλος, translit=hýalos, lit=crystal, glass, label=none. Histopathology Hyaline cartilage is ...

bluish white, the veins black and the costal margin, apex outer and inner margins of both wings purplish black.

References

Moths described in 1902 Spilomelinae Moths of South America {{Spilomelinae-stub