Published in Proceedings of the Entomological Society of Washington, in 1892, in volume 2, pages 228-232

Published in Proc. ent. Soc. Wash., in 1892, in volume 2, pages 259-261

Published in Proceedings of the Entomological Society of Washington, in 1892, in volume 2, pages 287-288

Published in Proceedings of the Entomological Society of Washington, in 1892, in volume 2, pages 290-302

Published in Proceedings of the Entomological Society of Washington, in 1892, in volume 2, pages 319-324

Published in Proceedings of the Entomological Society of Washington, in 1892, in volume 2, pages 354-358