Insecta, a cl. G. N. Potanin in China et in Mongolia Novissime Lecta. III. Genus Sphenoptera SolPublished in Horae Soc. Ent. Ross., in 1889, in volume 23, pages 83-87Contributions à la faune diptérologiquePublished in Trudy Russkago Entomologicheskago Obshchestva, in 1889, in volume 23, pages 313-347
Contributions à la faune diptérologiquePublished in Trudy Russkago Entomologicheskago Obshchestva, in 1889, in volume 23, pages 313-347