Gimnomera

Chagnon, Marie-Eve & Sinclair, Bradley J., 2020, Revision of the Nearctic species of Gimnomera Rondani (Diptera: Scathophagidae) with morphological phylogeny and DNA barcodes, Zootaxa 4853 (3), pp. 369-403 : 394-395

Gimnomera sp. A

( Fig. 18 )

Material examined. CANADA. Alberta: Banff NP, 51°16′55.2′′N 115°56′38.4′′W, 20.vii.2012, BIOBus 2012 (Sample ID: BIOUG03495 -B01) (1♀, barcode-associated, CBG) ; Waterton Lakes NP, 49°3′54′′N 113°46′44.4′′W, 27.vii.2012, BIOBus 2012 (Sample ID: BIOUG04892 -F02) (1♀, barcode-associated, CBG) . USA. Oregon: Marion Co., Silver Falls SP, North Falls , 44°53.074′N 122°37.219′W, 10.vii.2013, B.J. Sinclair (1♀, barcode-failed, CNC). Washington: Skamania Co., Gifford Pinchot NF, FR 23, mi 22, 46°19.901′N 121°43.213′W, 7.vii.2013, B.J. Sinclair, roadside streams (1♀, barcode-associated, CNC) .

Remarks. Gimnomera sp. A is known only from females, all associated based on COI barcodes, which also helped to indicate that these specimens are genetically different from other Nearctic species of Gimnomera ( Fig. 41 ). Males of this species are required for formal naming and description.

Figures

FIGURE 41. Neighbour-joining tree of 51 specimens of Gimnomera and one outgroup specimen with COI sequences, including unique voucher number (numbers starting with CCDB are from this study), sequence length, locality and GenBank accession number. Current species concepts shown by different colours, with the exception of G. tibialis and G. sibirica, where colours represent different populations (dark brown = G. tibialis east population, dark red = G. tibialis north population, orange = G. sibirica, light brown = G. cerea, light blue = G. subvittata, purple = G. aquilonia, light red = G. sp A, dark pink = G. terrywheeleri, navy blue = G. cuneiventris, light pink = G. vockerothi).

FIGURES 17–20. Male and female Gimnomera, lateral views. 17. G. subvittata (Malloch), male; 18. Female of possible ninth species of Nearctic Gimnomera (Gimnomera sp. A); 19. G. tibialis (Malloch), female; 20. G. vockerothi sp. nov., female.