Microdon (Microdon) scauros Skevington and Locke,

Skevington, Jeffrey H., Young, Andrew D., Locke, Michelle M. & Moran, Kevin M., 2019, New Syrphidae (Diptera) of North-eastern North America, Biodiversity Data Journal 7, pp. 36673-36673: 36673

publication ID

http://dx.doi.org/10.3897/BDJ.7.e36673

publication LSID

lsid:zoobank.org:pub:823430AD-B648-414F-A8B2-4F1E5F1A086A

persistent identifier

http://treatment.plazi.org/id/0DDD7DE3-C6F7-490D-A0B3-AA870F1C4815

taxon LSID

lsid:zoobank.org:act:0DDD7DE3-C6F7-490D-A0B3-AA870F1C4815

treatment provided by

Biodiversity Data Journal by Pensoft

scientific name

Microdon (Microdon) scauros Skevington and Locke
status

sp. n.

Microdon (Microdon) scauros Skevington and Locke  sp. n.

Materials

Type status: Holotype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44169; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-09-03; year: 1986; month: 9; day: 3; habitat: open grassy old field; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44200; recordedBy: F.D. Fee; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Maryland; locality: Allegany County, Fifteen-Mile Creek, Green Ridge State Forest ; decimalLatitude: 39.617; decimalLongitude: -78.383; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1978-07-06; year: 1978; month: 7; day: 6; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44176; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Ridge & Nursery Roads, Barree Township ; decimalLatitude: 40.642501; decimalLongitude: -77.908807; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1987-08-30; year: 1987; month: 8; day: 30; habitat: perch/veg., dry weedy meadow; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44179; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Ridge & Nursery Roads, Barree Township ; decimalLatitude: 40.642501; decimalLongitude: -77.908807; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1987-09-15; year: 1987; month: 9; day: 15; habitat: low veg. adjacent to marsh; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44180; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Ridge & Nursery Roads, Barree Township ; decimalLatitude: 40.642501; decimalLongitude: -77.908807; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1987-09-15; year: 1987; month: 9; day: 15; habitat: low veg. adjacent to marsh; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44184; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Ridge & Nursery Roads, Barree Township ; decimalLatitude: 40.642501; decimalLongitude: -77.908807; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1978-09-02; year: 1978; month: 9; day: 2; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44185; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Ridge & Nursery Roads, Barree Township ; decimalLatitude: 40.642501; decimalLongitude: -77.908807; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1978-09-02; year: 1978; month: 9; day: 2; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44186; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Ridge & Nursery Roads, Barree Township ; decimalLatitude: 40.642501; decimalLongitude: -77.908807; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1978-09-02; year: 1978; month: 9; day: 2; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44187; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Ridge & Nursery Roads, Barree Township ; decimalLatitude: 40.642501; decimalLongitude: -77.908807; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1978-09-02; year: 1978; month: 9; day: 2; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44188; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Ridge & Nursery Roads, Barree Township ; decimalLatitude: 40.642501; decimalLongitude: -77.908807; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1978-09-02; year: 1978; month: 9; day: 2; Record Level: language: en; institutionCode: CNC; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44199; recordedBy: F.D. Fee; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Ridge & Nursery Roads, Barree Township ; decimalLatitude: 40.642501; decimalLongitude: -77.908807; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1978-09-02; year: 1978; month: 9; day: 2; habitat: veg., shrubby meadow; Record Level: language: en; institutionCode: CNC; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen45193; recordedBy: F.D. Fee; individualCount: 1; sex: female; lifeStage: adult; otherCatalogNumbers: CCDB-26861; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Ridge & Nursery Roads, Barree Township ; decimalLatitude: 40.642501; decimalLongitude: -77.908807; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1987-08-31; year: 1987; month: 8; day: 31; habitat: ex. low veg., dry weedy field; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44181; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Route 26, 1.1 km west of Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1988-08-27; year: 1988; month: 8; day: 27; habitat: veg., sedge meadow; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44182; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Route 26, 1.1 km west of Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1988-08-27; year: 1988; month: 8; day: 27; habitat: veg., sedge meadow; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44177; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Stone Valley Recreational Area ; decimalLatitude: 40.659991; decimalLongitude: -77.919963; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1987-08-30; year: 1987; month: 8; day: 30; habitat: veg., shrubby meadow; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44178; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Stone Valley Recreational Area ; decimalLatitude: 40.659991; decimalLongitude: -77.919963; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1987-08-30; year: 1987; month: 8; day: 30; habitat: veg., shrubby meadow; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44197; recordedBy: F.D. Fee; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Stone Valley Recreational Area ; decimalLatitude: 40.659991; decimalLongitude: -77.919963; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1987-08-31; year: 1987; month: 8; day: 31; habitat: veg., shrubby meadow; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44198; recordedBy: F.D. Fee; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Stone Valley Recreational Area ; decimalLatitude: 40.659991; decimalLongitude: -77.919963; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1987-08-31; year: 1987; month: 8; day: 31; habitat: veg., shrubby meadow; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen29871; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; otherCatalogNumbers: CCDB-26861; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-08-31; year: 1986; month: 8; day: 31; habitat: ex: clearing among white pines/old field; Record Level: language: en; institutionCode: CNC; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen29872; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-08-31; year: 1986; month: 8; day: 31; habitat: ex: clearing among white pines/old field; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44167; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-08-31; year: 1986; month: 8; day: 31; habitat: old field clearing/white pines; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44168; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-08-31; year: 1986; month: 8; day: 31; habitat: old field clearing/white pines; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44170; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-09-03; year: 1986; month: 9; day: 3; habitat: old field, clearing, white pines; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44171; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-09-06; year: 1986; month: 9; day: 6; habitat: low veg., old field; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44172; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-09-06; year: 1986; month: 9; day: 6; habitat: low veg., old field; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44173; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-09-06; year: 1986; month: 9; day: 6; habitat: clearing-white pines-old field; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44174; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-09-11; year: 1986; month: 9; day: 11; habitat: Perching-grass-old field; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44175; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-09-13; year: 1986; month: 9; day: 13; habitat: clearing, old field; Record Level: language: en; institutionCode: USNM; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44183; recordedBy: F.D. Fee; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1989-07-29; year: 1989; month: 7; day: 29; Record Level: language: en; institutionCode: CNC; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44189; recordedBy: F.D. Fee; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-08-31; year: 1986; month: 8; day: 31; habitat: clearing, white pine/old field; Record Level: language: en; institutionCode: CNC; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44190; recordedBy: F.D. Fee; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-09-04; year: 1986; month: 9; day: 4; habitat: open grassy old field; Record Level: language: en; institutionCode: USNM; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44191; recordedBy: F.D. Fee; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-09-06; year: 1986; month: 9; day: 6; habitat: low veg., old field; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44192; recordedBy: F.D. Fee; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-09-06; year: 1986; month: 9; day: 6; habitat: low veg., old field; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44193; recordedBy: F.D. Fee; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-09-06; year: 1986; month: 9; day: 6; habitat: open grassy mowed area; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44194; recordedBy: F.D. Fee; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-09-06; year: 1986; month: 9; day: 6; habitat: low veg., old field; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44195; recordedBy: F.D. Fee; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-09-11; year: 1986; month: 9; day: 11; habitat: Perching-grasses-old field; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen44196; recordedBy: F.D. Fee; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntingdon County, Whipple Dam State Park ; decimalLatitude: 40.69385; decimalLongitude: -77.857447; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1986-09-13; year: 1986; month: 9; day: 13; habitat: clearing, old field; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps  Type status: Paratype. Occurrence: catalogNumber: Jeff_Skevington_Specimen18258; recordedBy: F.D. Fee; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Microdonscauros Skevington and Locke; kingdom: Animalia; phylum: Arthropoda; class: Hexapoda; order: Diptera; family: Syrphidae; genus: Microdon; subgenus: Microdon; specificEpithet: scauros; taxonRank: species; scientificNameAuthorship: Skevington and Locke 2019; vernacularName: Big-footed Ant Fly; nomenclaturalStatus: new species; Location: country: United States of America; stateProvince: Pennsylvania; locality: Huntington County, Route 26, 1.1 km west of Whipple Dam State Park ; decimalLatitude: 40.684219; decimalLongitude: -77.863903; Identification: identifiedBy: Jeffrey H. Skevington; dateIdentified: 2017; Event: samplingProtocol: hand collected; eventDate: 1988-09-01; year: 1988; month: 9; day: 1; habitat: ex. vegetation, dry weedy hillside; Record Level: language: en; institutionCode: ANSP; basisOfRecord: PreservedSpecimenGoogleMaps 

Description

Size: Body length 7.5 to 11.9 mm; wing length 4.7 to 7.2 mm

Male: Head: Brown, shining, entirely white pilose; occiput weakly grey pollinose, white pilose; scape pale brown, pedicel and postpedicel contrasting dark brown; postpedicel with a short sensory groove (about 0.1x length of postpedicel) below base of arista; antennal ratio (scape:pedicel:postpedicel) 4:1:7; eye bare; dichoptic, with eyes separated by 0.6-0.7x length of scape.

Thorax: Brown, shining; scutum and scutellum entirely white pilose; scutellum with prominent pair of apical, inward-pointing calcars; postpronotum white pilose; anterior anepisternum mostly bare with white pile only adjacent to posterior anepisternum, posterior anepisternum entirely white pilose, bare ventrally; katepisternum mostly shining brown with white pile only on posterodorsal corner and in a small ventral patch between fore and mid coxae; katepisternum bare and shining ventrally, pilose dorsally; meron and katepimeron bare, shining brown; anepimeron and anatergum sparsely pilose, dull; halter pale yellow; calypter pale yellow with white fringe; femora, coxae and trochanters dark brown, white pilose; tibiae pale yellowish-brown with dark brown medial band, white pilose; pro- and mesotarsi pale yellowish-brown with white pile dorsally and shorter golden pile ventrally and laterally; metabasitarsis dark brown, swollen and cylindrical; other metatarsi similar to those of pro- and mesolegs; wing light brownish, microtrichose except for narrow bare area along leading edges of bm and br.

Abdomen: Entirely dark brown dorsally and white pilose; sternites and terminalia paler brown, white pilose.

Genitalia: Epandrium compact, similar in length to surstylus; cercus subquadrate, with apex rounded and slightly wider at base; surstylus broad base, finger-shaped distally, with broad short spines ventroapically; phallus broad basally, ending in 2 stout tubules; apical part of hypandrium narrow, leaf-like; ejaculatory apodeme flat, rounded.

Female: Similar to male, differing as follows: Antennal ratio 3-4:1:5-6; terminalia dark brown except cerci paler.

See Fig. 8 & Fig. 9.

Diagnosis

Dark with prominent inward-pointing calcars on the scutellum, swollen metabasitarsus particularly evident on the male, postpedicel longer than scape, wings shorter than M. trisits  and completely microtrichose (including cell bm).

Etymology

Based on the Greek word skauros, for having large and swollen ankles, with reference to the swollen metabasitarsus of this species.

Distribution

Specimens are known from five sites in a small area of Pennsylvania and Maryland and were all collected by Frank Fee.

Ecology

This species appears to be active late in the season and is known to fly from late August to mid-September. One specimen was found flying earlier, in late July. This species is known from a small area of the north-eastern United States and is apparently rare. The known specimens were found in old fields and sedge meadows with adjacent pine-dominated forests or marshland.

Taxon discussion

Most closely resembles Microdon tristis  Loew, 1864. Microdon tristis  can be distinguished by prominent, outward-pointing calcars on the scutellum, metabasitarsus only slightly expanded (not prominently swollen), orange tibiae contrast with dark femora, postpedicel as long or longer than scape, wing with cell bm bare posterobasally. DNA was obtained from a single specimen (Table 2). Although morphologically most similar to M. tristis  , it is most similar genetically to M. globosus  (Fabricius 1805). Microdon scauros  and M. globosus  , while genetically similar, are quite different morphologically and clearly distinguished by Skevington et al. (2019).

Common Name

The common name given to the species by Skevington et al. (2019) is Big-footed Ant Fly.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Syrphidae

Genus

Microdon