Abstract
A new species group, the ornatipes group, is established within the subgenus Steganina of the genus Stegana, based on three known and seven new species, all of which are endemic to the Oriental Region: S. (S.) chitouensis Sidorenko, S. (S.) ornatipes Wheeler & Takada, S. (S.) vietnamensis Sidorenko, S. (S.) albiventralis sp. nov., S. (S.) angusigena sp. nov., S. (S.) lingnanensis sp. nov., S. (S.) mengla sp. nov., S. (S.) nulliseta sp. nov., S. (S.) pilosella sp. nov. and S. (S.) zhaofengi sp. nov. A key to all species of the group is provided.References
Bächli, G., Vilela, C.R., Andersson, S. & Saura, A. (2004) The Drosophilidae (Diptera) of Fennoscandia and Denmark. In: Fauna Entomologica Scandinavica. Vol. 39. Brill, Leiden, New York, pp. 362.
Cao, H.Z. & Chen, H.W. (2008) Revision of the Stegana (Steganina) nigrolimbata species group from the Oriental region (Diptera, Drosophilidae). Zootaxa, 1848, 27–36.
Chen, X.P. & Chen, H.W. (2008) The Stegana coleoptrata species group (Diptera, Drosophilidae) from mainland China. Zootaxa, 1891, 55–65.
Chen, X.P., Gao, J.J. & Chen, H.W. (2009) The Stegana shirozui species group (Diptera, Drosophilidae) from East Asia. Journal of Natural History, 43, 1909-1927.
Chen, H.W. & Toda, M.J. (2001) A revision of the Asian and European species in the subgenus Amiota Loew (Diptera, Drosophilidae) and establishment of species-groups based on phylogenetic analysis. Journal of Natural History, 35, 1517–1563.
Laštovka, P. & Máca, J. (1982) European and North American species of the genus Stegana (Diptera, Drosophilidae). Annotations Zoologicae et Botanicae, 149, 1–38.
Meigen, J.W. (1830) Systematische Beschreibung der bekannten europäischen zweiflügeligen Insekten. Hamm Press, Vol. 6, 1–404.
Sidorenko, V.S. (1997) New Asian species and new records of the genus Stegana Meigen (Diptera, Drosophilidae). I. Sugenera Oxyphortica Duda and Stegana (s. str.). Annales de la Societe Entomologique de France (N. S.), 33, 65-79.
Sidorenko, V.S. (1998) New Asian species and new records of the genus Stegana Meigen (Diptera, Drosophilidae). III. Descriptions, taxonomic remarks and key to the Asian species. Annales de la Societe Entomologique de France (N. S.), 34, 285–300.
Sidorenko, V.S. (2002) Phylogeny of the tribe Steganini Hendel and some related taxa (Diptera, Drosophilidae). Far Eastern Entomologist, 111, 1–20.
Wheeler, M.R. (1960) A new subgenus and species of Stegana Meigen (Diptera, Drosophilidae). Proceedings of the Entological Society of Washington, 62, 109–111.
Wheeler, M.R. & Takada, H. (1964) Diptera: Drosophilidae. Insecta of Micronesia, 14, 163–242.