I. On Some new British Species of Ephemeridæ
Published in Transactions of the Royal Entomological Society of London, in 1870, in volume 18, issue 1, pages 1-8
Date published:1870-03
Published in Transactions of the Royal Entomological Society of London, in 1870, in volume 18, issue 1, pages 1-8
Date published:1870-03