Published in Transactions of the American Entomological Society, in 1888, in volume 15, pages 26-48
Published in Transaction of the American Entomological Society, in 1888, in volume 15, pages 243-292
Published in Transactions of the American Entomological Society, in 1888, in volume 15, pages 294-297
Published in Transactions of The American Entomological Society, in 1888, in volume 15, pages 299-300