Asindulum nigrum Latreille, 1805

Salmela, Jukka & Kaunisto, Kari M, 2015, Additions to the list of Finnish Bibionomorpha (Diptera, Nematocera), Biodiversity Data Journal 3, pp. 5228-5228 : 5228

Asindulum nigrum Latreille, 1805

Materials

Type status: Other material. Occurrence: catalogNumber: DIPT-JS-2014-0115 ; recordedBy: J. Salmela; individualCount: 1; sex: male; Location: country: Finland; stateProvince: Ostrobothnia borealis pars borealis; verbatimLocality: Tornio, Isonkummunjänkä Mire Conservation Area, Kusiaiskorpi; verbatimLatitude: 65.888; verbatimLongitude: 24.479; verbatimCoordinateSystem: decimal degrees; verbatimSRS: WGS84; Identification: identifiedBy: J. Salmela; Event: samplingProtocol: Malaise trap; eventDate: 2013-8-1/9-26; habitat: calcareous rich fen, rusty deposist; Record Level: institutionCode: JES

Distribution

European. The species (Fig. 4) was described from France ( Latreille 1805) and has been later recorded from Great Britain, Central and North Europe ( Matile 1975, Chandler 1991 Chandler 2004). The species seems to be rather rare throughout its range ( Hedmark 2004, Chandler 1991, Ševčík and Kurina 2011b). In Sweden the species is very rare, known from the southern and central parts of the country, but it has probably vanished from four out of six of its previously occupied biogeographical provinces ( Cederberg et al. 2010).

Ecology

Immature stages are unknown, but Orfeliini larvae are predaceous ( Marshall 2012). Asindulum nigrum has been collected from calcareous wetlands ( Chandler 1991, Hedmark 2004) and adult flies have often been observed visiting flowers, such as Apiaceae and Saxifraga hirculus ( Bechev 2010). Finnish collecting site is a calcareous rich fen with iron-rich seepages (for a detailed description of the habitat, see Salmela et al. 2014).

Conservation

The species is red-listed in Great Britain (NT, Falk and Chandler 2005) and Sweden (VU, Cederberg et al. 2010).