Hydrellia mutata (Zetterstedt, 1846)

Kahanpaeae, Jere & Zatwarnicki, Tadeusz, 2015, Notes on Shore Flies (Diptera: Ephydridae) from Finland and north-western Russia, Biodiversity Data Journal 3, pp. 4701-4701 : 4701

Hydrellia mutata (Zetterstedt, 1846)

Materials

Type status: Other material. Occurrence: catalogNumber: http://id.luomus.fi/GV.16611 ; recordedBy: Tiensuu, Lauri; individualCount: 1; sex: M; lifeStage: adult; behavior: on Alisma; Taxon: scientificName: Hydrelliamutata (Zetterstedt, 1846); order: Diptera; family: Ephydridae; genus: Hydrellia; specificEpithet: mutata; scientificNameAuthorship: (Zetterstedt, 1846); Location: country: Russia; stateProvince: Carelian Republic; municipality: Sortavala; verbatimLocality: Sortavala; decimalLatitude: 61.7; decimalLongitude: 30.7; geodeticDatum: wgs84; coordinateUncertaintyInMeters: 20000; georeferencedBy: Kahanpää, Jere; Identification: identifiedBy: Kahanpää, Jere; dateIdentified: 2013-9-26; Event: year: 1936; month: 7; day: 1; verbatimEventDate: 1-VII 36; Record Level: institutionCode: MZH; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: http://id.luomus.fi/GV.16612 ; recordedBy: Tiensuu, Lauri; individualCount: 1; sex: F; lifeStage: adult; behavior: on Alisma; Taxon: scientificName: Hydrelliamutata (Zetterstedt, 1846); order: Diptera; family: Ephydridae; genus: Hydrellia; specificEpithet: mutata; scientificNameAuthorship: (Zetterstedt, 1846); Location: country: Russia; stateProvince: Carelian Republic; municipality: Sortavala; verbatimLocality: Sortavala; decimalLatitude: 61.7; decimalLongitude: 30.7; geodeticDatum: wgs84; coordinateUncertaintyInMeters: 20000; georeferencedBy: Kahanpää, Jere; Identification: identifiedBy: Kahanpää, Jere; dateIdentified: 2013-9-26; Event: year: 1936; month: 7; day: 1; verbatimEventDate: 1-VII 36; Record Level: institutionCode: MZH; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: http://id.luomus.fi/GV.16613 ; recordedBy: Tiensuu, Lauri; individualCount: 1; sex: F; lifeStage: adult; Taxon: scientificName: Hydrelliamutata (Zetterstedt, 1846); order: Diptera; family: Ephydridae; genus: Hydrellia; specificEpithet: mutata; scientificNameAuthorship: (Zetterstedt, 1846); Location: country: Finland; stateProvince: U; municipality: Helsinki; verbatimLocality: U: Helsinki; decimalLatitude: 60.19; decimalLongitude: 25; geodeticDatum: wgs84; coordinateUncertaintyInMeters: 10000; georeferencedBy: Kahanpää, Jere; Identification: identifiedBy: Kahanpää, Jere; dateIdentified: 2013-9-26; Event: year: 1958; month: 7; day: 22; verbatimEventDate: 22 VII -58; Record Level: institutionCode: MZH; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: recordedBy: Kahanpää, Jere; individualCount: 1; sex: M; lifeStage: adult; Taxon: scientificName: Hydrelliamutata (Zetterstedt, 1846); order: Diptera; family: Ephydridae; genus: Hydrellia; specificEpithet: mutata; scientificNameAuthorship: (Zetterstedt, 1846); Location: country: Finland; stateProvince: U; municipality: Helsinki; verbatimLocality: N: Espoo, Kaitalahti; verbatimCoordinates: 66715:33712; verbatimCoordinateSystem: YKJ; decimalLatitude: 60.138; decimalLongitude: 24.691; geodeticDatum: wgs84; coordinateUncertaintyInMeters: 300; georeferencedBy: Kahanpää, Jere; Identification: identifiedBy: Kahanpää, Jere; dateIdentified: 2014-02-05; Event: year: 2004; month: 8; day: 3; Record Level: institutionCode: Coll. Kahanpää; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: recordedBy: Kahanpää, Jere; individualCount: 1; sex: M; lifeStage: adult; Taxon: scientificName: Hydrelliamutata (Zetterstedt, 1846); order: Diptera; family: Ephydridae; genus: Hydrellia; specificEpithet: mutata; scientificNameAuthorship: (Zetterstedt, 1846); Location: country: Finland; stateProvince: V; municipality: Lohja; locality: Vaanila ; verbatimLocality: Ab: Lohja, Vaanila; verbatimCoordinates: 66919:33409; verbatimCoordinateSystem: YKJ; decimalLatitude: 60.308; decimalLongitude: 24.118; geodeticDatum: wgs84; coordinateUncertaintyInMeters: 50; georeferencedBy: Kahanpää, Jere; Identification: identifiedBy: Kahanpää, Jere; dateIdentified: 2014-02-05; Event: year: 2004; month: 7; day: 16; Record Level: institutionCode: Coll. Kahanpää; basisOfRecord: PreservedSpecimen

Diagnosis

Best identified by structures of the male genitalia as illustrated by Collin (1966).

Distribution

First recorded from Finland by Zatwarnicki and Kahanpää (2014). Northern, Western and Central Europe ( Zatwarnicki 2013).

Ecology

Larvae have recently been found feeding on Alisma ( Robbins 1990) and Stratiotes , possibly also Lemna and Alisma (see Deonier 1971).

Notes

Correctly identified by Richard Frey and Lauri Tiensuu but the record was never published. Specimen http://id.luomus.fi/GV.16611 is illustrated in Fig. 1b.