Hipparchia maderensis explained

Hipparchia maderensis, the Madeiran grayling, is a species of butterfly in the family Nymphalidae.^[1] It is endemic to Madeira. Its natural habitat is temperate forests. Seitz treats it as a race of Hipparchia semele - in maderensis Baker, from Madeira the upperside in both sexes is strongly obscured and in the male almost without any markings.^[2]

Notes and References

1. http://ftp.funet.fi/pub/sci/bio/life/insecta/lepidoptera/ditrysia/papilionoidea/nymphalidae/satyrinae/hipparchia/ "Hipparchia Fabricius, 1807"
2. Seitz, A. in Seitz. A. ed. Band 1: Abt. 1, Die Großschmetterlinge des palaearktischen Faunengebietes, Die palaearktischen Tagfalter, 1909, 379 Seiten, mit 89 kolorierten Tafeln (3470 Figuren)