XI. Descriptions of a new genus and four new species of Calopterygidæ, and of a new genus and species of Gomphidæ
Published in Transactions of The Royal Entomological Society of London, in 1870, in volume 18, pages 165-172
Date published:1870
Published in Transactions of The Royal Entomological Society of London, in 1870, in volume 18, pages 165-172
Date published:1870