Hydrellia cochleariae Haliday, 1839

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 cochleariae Haliday, 1839

Materials

Type status: Other material. Occurrence: catalogNumber: http://id.luomus.fi/GV.16690 ; recordedBy: Palmén, Johan Axel; individualCount: 4; sex: MF; lifeStage: adult; Taxon: scientificName: Hydrelliacochleariae Haliday, 1839; order: Diptera; family: Ephydridae; genus: Hydrellia; specificEpithet: cochleariae; scientificNameAuthorship: Haliday, 1839; Location: country: Finland; stateProvince: U; municipality: Helsinki; locality: Jollas ; verbatimLocality: Helsinge; decimalLatitude: 60.16; decimalLongitude: 25.07; geodeticDatum: wgs84; georeferencedBy: Kahanpää, Jere; Identification: identifiedBy: Kahanpää, Jere; dateIdentified: 2013-9-26; Event: year: 1864; month: 6; day: 20; Record Level: institutionCode: MZH; basisOfRecord: PreservedSpecimen Type status: Other material. Occurrence: catalogNumber: http://id.luomus.fi/GV.16691 ; recordNumber: 4096; recordedBy: Palmén, Johan Axel; individualCount: 5; sex: MF; lifeStage: adult; preparations: gen. prep. on pin; Taxon: scientificName: Hydrelliacochleariae Haliday, 1839; order: Diptera; family: Ephydridae; genus: Hydrellia; specificEpithet: cochleariae; scientificNameAuthorship: Haliday, 1839; Location: country: Finland; stateProvince: U; municipality: Helsinki; locality: Jollas ; verbatimLocality: Helsinge; decimalLatitude: 60.16; decimalLongitude: 25.07; geodeticDatum: wgs84; georeferencedBy: Kahanpää, Jere; Identification: identifiedBy: Kahanpää, Jere; dateIdentified: 2013-9-26; Event: year: 1864; month: 6; day: 20; Record Level: institutionCode: MZH; basisOfRecord: PreservedSpecimen Type status: Other material. Occurrence: catalogNumber: http://id.luomus.fi/GV.16690 ; recordedBy: Meinander, Martin; individualCount: 1; sex: MF; lifeStage: adult; preparations: gen. prep. on pin; Taxon: scientificName: Hydrelliacochleariae Haliday, 1839; order: Diptera; family: Ephydridae; genus: Hydrellia; specificEpithet: cochleariae; scientificNameAuthorship: Haliday, 1839; Location: country: Finland; stateProvince: V; municipality: Korppoo; locality: Jurmo ; decimalLatitude: 59.82; decimalLongitude: 21.60; geodeticDatum: wgs84; georeferencedBy: Kahanpää, Jere; Identification: identifiedBy: Kahanpää, Jere; dateIdentified: 2013-9-26; Event: year: 1960; month: 8; day: 8; Record Level: institutionCode: MZH; 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). Central and Western Europe ( Zatwarnicki 2013). The Finnish records are the first from Northern Europe.

Ecology

Reared from water soldiers ( Stratiotes ), Potamogeton ( Fischer 1997), and water starworts ( Callitriche ) ( Hering 1957). Older, less reliable host records mention Hydrocharis as an additional host (see Deonier 1971).

Notes

Previously misidentified as Hydrellia flavicornis ( Fallén, 1823) in Finland ( Hackman 1980).