BioStor
 | Coleopteren aus Circassien, gesammelt von Hans LEDER im Jahre 1887. II. Theil Edmund Reitter (1888) Wiener Entomologische Zeitung 7: 81-90 |
 | A list of Coleoptera from the southern shore of Lake Superior, with remarks on geographical distribution Wickham Henry Frederick (1897) Proceedings of the Davenport Academy of Natural Sciences 6: 125-169 |