Boreophilia nomensis

• Main Author: Gusarov, Vladimir I.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2003
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Coleoptera; Staphylinidae; Boreophilia; Boreophilia nomensis; Yukon; Canada; Ogilvie; North Fork; North Fork Pass; Nome; Alaska
• Online Access: https://zenodo.org/record/5102700; https://doi.org/10.5281/zenodo.5102700

Boreophilia nomensis (Casey, 1910a) (Figs. 90–92 in Lohse et al. 1990 (as Boreophilia caseyiana)) Dinaraea nomensis Casey, 1910a: 96. Atheta nomensis: Fenyes, 1920: 227 (as valid species of doubtful systematic position). Atheta (s. str.) nomensis: Bernhauer & Scheerpeltz, 1926: 647 (as valid species). Atheta (Dinaraea) nomensis: Moore & Legner, 1975: 367 (as valid species). Dinaraea nomensis: Seevers, 1978: 263 (as valid species). Boreophilia caseyiana Lohse in Lohse et al., 1990: 160, syn. nov. Boreophilia nomensis: Lohse in Lohse et al., 1990: 160 (as valid species). Type material. Lectotype of Dinaraea nomensis (designated by Lohse et al. (1990)): UNITED STATES: Alaska: ♂, Nome (NMNH). Holotype of Boreophilia caseyiana: CANADA: Yukon Territory: ♂, North Fork Pass, Ogilvie Mts., 3500’, 17.vi.1962 (R.E.Leech) (CNCI). Diagnosis. See Lohse et al. (1990). Discussion. Lohse (Lohse et al. 1990) considered the single type of Din. nomensis in the Casey collection as the holotype. However, Casey (1910a) neither used the word “ holotype ” nor stated that he had the single specimen of that species. Therefore, Lohse designated the lectotype of Din. nomensis by inference of holotype (Article 74.6; ICZN 1999). Lohse (Lohse et al. 1990) stated that “the aedeagi of B. caseyiana and B. nomensis are extremely similar”. However, based on a larger body size (3.8 mm versus 3.0 mm) and a less transverse pronotum (width to length ratio 11 /5 versus 11 /3) of the holotype of Boreophilia caseyiana in comparison to the lectotype of Din. nomensis, Lohse considered the two as separate species. The aedeagi of the types of both species, including the sclerites of the internal sac, are in fact identical. According to my measuring, in the holotype of Boreophilia caseyiana the body length is 3.6 mm and pronotal width to length ratio is 1.22. In the lectotype of Din. nomensis the body length is 3.3 mm, and pronotal width to length ratio is 1.29. In Athetini, such difference in body length and pronotal width is not unusual within the ...