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. 2019 Sep 3:7:e36673.
doi: 10.3897/BDJ.7.e36673. eCollection 2019.

New Syrphidae (Diptera) of North-eastern North America

Jeffrey H Skevington  1   2 , Andrew D Young  3 , Michelle M Locke  1 , Kevin M Moran  2   1
Affiliations

New Syrphidae (Diptera) of North-eastern North America

Jeffrey H Skevington et al. Biodivers Data J. .

Abstract

Background: This paper describes 11 of 18 new species recognised in the recent book, "Field Guide to the Flower Flies of Northeastern North America". Four species are omitted as they need to be described in the context of a revision (three Cheilosia and a Palpada species) and three other species (one Neoascia and two Xylota) will be described by F. Christian Thompson in a planned publication. Six of the new species have been recognised for decades and were treated by J. Richard Vockeroth in unpublished notes or by Thompson in his unpublished but widely distributed "A conspectus of the flower flies (Diptera: Syrphidae) of the Nearctic Region". Five of the 11 species were discovered during the preparation of the Field Guide. Eight of the 11 have DNA barcodes available that support the morphology.

New information: New species treated in this paper include: Anasimyia diffusa Locke, Skevington and Vockeroth (Smooth-legged Swamp Fly), Anasimyia matutina Locke, Skevington and Vockeroth (Small-spotted Swamp Fly), Brachyopa caesariata Moran and Skevington (Plain-winged Sapeater), Brachyopa cummingi Moran and Skevington (Somber Sapeater), Hammerschmidtia sedmani Vockeroth, Moran and Skevington (Pale-bristled Logsitter), Microdon (Microdon) scauros Skevington and Locke (Big-footed Ant Fly), Mixogaster fattigi Locke, Skevington and Greene (Fattig's Ant Fly), Neoascia guttata Skevington and Moran (Spotted Fen Fly), Orthonevra feei Moran and Skevington (Fee's Mucksucker), Psilota klymkoi Locke, Young and Skevington (Black Haireye) and Trichopsomyia litoralis Vockeroth and Young (Coastal Psyllid-killer). Common names follow the "Field Guide to the Flower Flies of Northeastern North America" (Skevington et al. 2019).

Keywords: Diptera; Syrphidae; Nearctic; flower flies; hover flies; new species; taxonomy.

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Figures

Figure 1a.
Figure 1a.
Dorsal habitus, CNC_Diptera44630
Figure 1b.
Figure 1b.
Lateral habitus, CNC_Diptera44630
Figure 1c.
Figure 1c.
Face, oblique, Holotype, CNC_Diptera102201
Figure 1d.
Figure 1d.
Metaleg, lateral, Holotype, CNC_Diptera102201
Figure 1e.
Figure 1e.
Metaleg, ventral, Holotype, CNC_Diptera102201
Figure 2a.
Figure 2a.
Lateral terminalia, Jeff_Skevington_Specimen17434
Figure 2b.
Figure 2b.
Ventral terminalia, Jeff_Skevington_Specimen17434
Figure 2c.
Figure 2c.
Lateral hypandrium, Jeff_Skevington_Specimen17434
Figure 2d.
Figure 2d.
Ventral of hypandrium, Jeff_Skevington_Specimen17434
Figure 3a.
Figure 3a.
Dorsal habitus, Holotype, CNC_Diptera91232
Figure 3b.
Figure 3b.
Lateral habitus, Jeff_Skevington_Specimen17432
Figure 3c.
Figure 3c.
Head, oblique, Holotype, CNC_Diptera91232
Figure 3d.
Figure 3d.
Hind leg, Jeff_Skevington_Specimen17432
Figure 4a.
Figure 4a.
Lateral of male terminalia, Jeff_Skevington_Specimen17432; scale bar 500 µm
Figure 4b.
Figure 4b.
Ventral of male terminalia, Jeff_Skevington_Specimen17432; scale bar 200 µm
Figure 4c.
Figure 4c.
Sperm pump and ejaculatory apodeme, Jeff_Skevington_Specimen17432; scale bar 100 µm
Figure 4d.
Figure 4d.
Ventral of hypandrium, Jeff_Skevington_Specimen17432; scale bar 200µm
Figure 5a.
Figure 5a.
Dorsal habitus, CNC_Diptera243273
Figure 5b.
Figure 5b.
Dorsal scutellum, CNC_Diptera243273
Figure 5c.
Figure 5c.
Lateral habitus, CNC_Diptera243273
Figure 5d.
Figure 5d.
Arista, CNC_Diptera243273
Figure 5e.
Figure 5e.
Lateral male genitalia, CNC_Diptera37549; scale bar 200 µm
Figure 5f.
Figure 5f.
Ventral male genitalia, CNC_Diptera37549; scale bar 200 µm
Figure 6a.
Figure 6a.
Dorsal habitus, Holotype, CNC_Diptera106864
Figure 6b.
Figure 6b.
Lateral habitus, Holotype, CNC_Diptera106864
Figure 6c.
Figure 6c.
Lateral, male genitalia, Holotype, CNC_Diptera106864
Figure 6d.
Figure 6d.
Ventral, male genitalia, Holotype, CNC_Diptera106864
Figure 6e.
Figure 6e.
Antenna, Holotype, CNC_Diptera106864
Figure 7a.
Figure 7a.
Dorsal habitus, CNC_Diptera556
Figure 7b.
Figure 7b.
Lateral habitus, CNC_Diptera574
Figure 7c.
Figure 7c.
Katepisternum, CNC_Diptera574
Figure 7d.
Figure 7d.
Hind leg, CNC_Diptera574
Figure 7e.
Figure 7e.
Lateral of male genitalia, CNC_Diptera49259; scale bar 500 µm
Figure 7f.
Figure 7f.
Ventral of male genitalia, CNC_Diptera49259; scale bar 200 µm
Figure 8a.
Figure 8a.
Dorsal habitus, Holotype, Jeff_Skevington_Specimen44169
Figure 8b.
Figure 8b.
Lateral habitus, Holotype, Jeff_Skevington_Specimen44169
Figure 8c.
Figure 8c.
Antennae, Holotype, Jeff_Skevington_Specimen44169
Figure 8d.
Figure 8d.
Scutellum, Jeff_Skevington_Specimen44200
Figure 8e.
Figure 8e.
Male hind tarsi, Holotype, Jeff_Skevington_Specimen44169
Figure 8f.
Figure 8f.
Female hind tarsi, Jeff_Skevington_Specimen44200
Figure 9a.
Figure 9a.
Lateral of male genitalia, Jeff_Skevington_Specimen44181; scale bar 500 µm
Figure 9b.
Figure 9b.
Ventral of male genitalia, Jeff_Skevington_Specimen44181; scale bar 500 µm
Figure 9c.
Figure 9c.
Lateral of ejaculatory apodeme and sperm pump, Jeff_Skevington_Specimen44181; scale bar 200 µm
Figure 9d.
Figure 9d.
Lateral of phallus, hypandrium and related structures, Jeff_Skevington_Specimen44183, scale bar 200 µm
Figure 10a.
Figure 10a.
Dorsal habitus, CNC_Diptera92831
Figure 10b.
Figure 10b.
Lateral habitus, CNC_Diptera92831
Figure 10c.
Figure 10c.
Head, oblique, CNC_Diptera92831
Figure 10d.
Figure 10d.
Male epandrium, cercus and surstylus, lateral, CNC1129651; scale bar 200 µm
Figure 10e.
Figure 10e.
Male genitalia, ventral, CNC1129651; scale bar 200 µm
Figure 10f.
Figure 10f.
Male hypandrium and phallus, lateral, CNC1129651; scale bar 200 µm
Figure 11a.
Figure 11a.
Dorsal habitus, female, CNC_Diptera169737
Figure 11b.
Figure 11b.
Lateral habitus, female, CNC_Diptera169737
Figure 11c.
Figure 11c.
Lateral head, female, CNC_Diptera169737
Figure 11d.
Figure 11d.
Lateral habitus, male, Holotype, CNC_Diptera170046
Figure 11e.
Figure 11e.
Dorsal abdomen, male, Holotype, CNC_Diptera170046
Figure 11f.
Figure 11f.
Lateral genitalia, male, Holotype, CNC_Diptera170046
Figure 12a.
Figure 12a.
Dorsal habitus, male, Jeff_Skevington_Specimen44221
Figure 12b.
Figure 12b.
Lateral habitus, male, Jeff_Skevington_Specimen44221
Figure 12c.
Figure 12c.
Face, oblique, male, Jeff_Skevington_Specimen44221
Figure 12d.
Figure 12d.
Lateral male genitalia, Jeff_Skevington_Specimen44222, Scale bar 500 µm
Figure 12e.
Figure 12e.
Ventral male genitalia, Jeff_Skevington_Specimen44222, Scale bar 500 µm
Figure 13a.
Figure 13a.
Dorsal habitus, Holotype, Jeff_Skevington_Specimen30434
Figure 13b.
Figure 13b.
Lateral habitus, Holotype, Jeff_Skevington_Specimen30434
Figure 13c.
Figure 13c.
Lateral of male genitalia, Holotype, Jeff_Skevington_Specimen30434; scale bar 200µm
Figure 13d.
Figure 13d.
Ventral of male genitalia, Holotype, Jeff_Skevington_Specimen30434; scale bar 200µm
Figure 14a.
Figure 14a.
dorsal habitus, male, CNC_Diptera9769
Figure 14b.
Figure 14b.
lateral habitus, male, CNC_Diptera9769
Figure 14c.
Figure 14c.
face, male, CNC_Diptera9769
Figure 15a.
Figure 15a.
Lateral of genitalia, CNC_Diptera55045
Figure 15b.
Figure 15b.
Dorsal of genitalia, ses: subepandrial sclerite, CNC_Diptera55045
Figure 15c.
Figure 15c.
Ventral view of surstylus, ll: lateral lobe, vl: ventral lobe, CNC_Diptera55045
Figure 15d.
Figure 15d.
Phallus, CNC_Diptera55045
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