Docosia muelleri Plassmann, 1986*

Jakovlev, Jevgeni, Salmela, Jukka, Polevoi, Alexei, Penttinen, Jouni & Vartija, Noora-Annukka, 2014, Recent noteworthy findings of fungus gnats from Finland and northwestern Russia (Diptera: Ditomyiidae, Keroplatidae, Bolitophilidae and Mycetophilidae), Biodiversity Data Journal 2, pp. 1068-1068 : 1068

Docosia muelleri Plassmann, 1986*

Materials

Type status: Other material. Occurrence: catalogNumber: MYCE-JS-2013-0195 ; recordedBy: J. Salmela; individualCount: 1; sex: male; Location: country: Finland; stateProvince: Lapponia kemensis pars orientalis; verbatimLocality: Savukoski, Törmäoja; decimalLatitude: 67.835; decimalLongitude: 29.454; geodeticDatum: WGS84; Identification: identifiedBy: J. Salmela; Event: samplingProtocol: Malaise trap; eventDate: 2012-7-10 /8-16; habitat: headwater stream, old-growth boreal forest; Record Level: institutionCode: JES Type status: Other material. Occurrence: recordedBy: J.Jakovlev and J.Penttinen; individualCount: 1; sex: male; Location: stateProvince: Lapponia enontekiensis; municipality: Enontekiö; locality: Kilpisjaervi _Saana_North_3 ; decimalLatitude: 69.045; decimalLongitude: 20.807; geodeticDatum: WGS84; Identification: identifiedBy: J.Jakovlev; Event: samplingProtocol: Malaise trap; eventDate: 2006-8-1 /8-15; habitat: mountain birch forest Type status: Other material. Occurrence: recordedBy: J.Jakovlev and J.Penttinen; individualCount: 1; sex: male; Location: stateProvince: Lapponia enontekiensis; municipality: Enontekiö; locality: Kilpisjaervi _Saana_North_3 ; decimalLatitude: 69.045; decimalLongitude: 20.807; geodeticDatum: WGS84; Identification: identifiedBy: J.Jakovlev; Event: samplingProtocol: Malaise trap; eventDate: 2006-8-15 /8-31; habitat: mountain birch forest Type status: Other material. Occurrence: recordedBy: J.Jakovlev and J.Penttinen; individualCount: 1; sex: male; Location: stateProvince: Lapponia enontekiensis; municipality: Enontekiö; locality: Kilpisjaervi _Saana_South_1 ; decimalLatitude: 69.033; decimalLongitude: 20.838; geodeticDatum: WGS84; Identification: identifiedBy: J.Penttinen; Event: samplingProtocol: Malaise trap; eventDate: 2006-6-19 /7-14; habitat: mountain birch forest; Record Level: institutionCode: JPJ Type status: Other material. Occurrence: recordedBy: J.Jakovlev and J.Penttinen; individualCount: 1; sex: male; Location: stateProvince: Lapponia kemensis pars occidentalis; municipality: Muonio; locality: Pallas-Yllaestunturi National Park ; decimalLatitude: 67.587; decimalLongitude: 24.214; geodeticDatum: WGS84; Identification: identifiedBy: J.Jakovlev; Event: samplingProtocol: Malaise trap; eventDate: 2006-7-15 /8-15; habitat: old-growth forest, Myrtillus type

Distribution

Palaearctic. Docosia muelleri (Fig. 18) is in Fennoscandia so far known only by the type material from northern Sweden ( Plassmann 1986). No former records from Finland.

Ecology

Current knowledge based on a few findings suggests a northern distribution. Finnish records are from subarctic mountain birch forest on the slopes of Saana mountain, from old-growth coniferous stands close to the timberline ( Pallas-Yllästunturi National Park) and from riparian forests (Savukoski). Immature stages are unknown.

Taxon discussion

It was recently noted that Docosia moravica Landrock sensu Zaitzev ( Zaitzev 1994, p. 254, Fig. 81: 9) most likely represents D. muelleri ( Kurina and Ševčík 2012). We studied the holotype of D. muelleri (Sweden, Abisko) and specimens identified as Docosia moravica by A.Zaitzev (West Siberia: Nizhnyaya Tunguska and Norilsk) and can confirm that the species are identical. Male genitalia of real D. moravica were figured by Laštovka and Ševčík ( Laštovka and Ševčík 2006) who studied Landrock's specimens and designated lectotype.