Details for Molophilus (Molophilus) crassipygus
Name:Molophilus (Molophilus) crassipygus Meijere, 1918
Publication:Tijdschr. Ent. 61: 131 (as Molophilus)
Status:Recognized taxon, Synonym(s): ochrescens Edwards, 1938; dentifer Agrell, 1945.
Classification:Family Limoniidae
Subfamily Chioneinae
Descriptive note:Type-material: Jong, 2000.
Keys:Boardman, 2016 (craneflies Shropshire); Stubbs and Kramer, 2016k; Stubbs, 2021 (British craneflies)
Variant spelling(s):crassipyga, crassypiga
Molophilus (Molophilus) crassipygus : habitus - maleMolophilus (Molophilus) crassipygus : habitus - maleMolophilus (Molophilus) crassipygus : habitus - maleMolophilus (Molophilus) crassipygus : hypopygiumMolophilus (Molophilus) crassipygus : hypopygium
habitus
male
habitus
male
habitus
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hypopygiumhypopygium
plus 25 more images of hypopygium, hypopygium, hypopygium, hypopygium, hypopygium, hypopygium, hypopygium, hypopygium, hypopygium, hypopygium, wing, habitat, habitat, habitat, habitat, habitat, habitat, habitat, habitat, habitat, habitat, habitat, habitat, habitat and habitat.
Distribution:Austria, Belgium, Bosnia-Herzegovina, Bulgaria, Czech Rep., Denmark, Finland, France, Germany, Great Britain, Greece, Hungary, Ireland, Latvia, Lithuania, Moldova, Netherlands, North Macedonia, Norway, Poland, Romania, Slovakia, Serbia, Sweden, Switzerland, Ukraine; Russia: RUN, RUW, RUE, RUS.
Note: see the manual for abbreviations: present-day Russia.
Region(s):Westpalaearctic
General note:For Finland check Salmela, 2012b, 2012c, and citations below. For Norway check Olsen et al., 2018, and citations below. For Great Britain and Ireland check Stubbs, 2021, and citations below.
Map:Podenas et al., 2006 (Switzerland); Ashe et al., 2007b (Ireland)
Figure
references:
Hypopygium: Stary and Rozkosny, 1970a; Podenas et al., 2006; Kolcsar et al., 2021b

Immature stages
Larva: Podeniene, 2003a; Podeniene, 2009; Krivosheina and Krivosheina, 2011c
Citationson biology (mainly from 2000 onward):
Bosnia-Herzegowina
Habitat. Graf et al., 2023: 34 (inventory of the upper Neretva, an unimpacted riverine system embedded in dense natural and near-natural forest; see paper for details).
Bulgaria
Habitat. Hubenov, 2025b: suppl: 4 (annotated list Diptera high Bulgarian mts, local distr, habitats and zoogeography).
Czech Rep.
Habitat. Stary and Vonicka, 2018: 57 (on Limoniidae and Pediciidae of two localities in northern Bohemia, with list of localities, altitudes and habitats).
Denmark
Habitat. Byriel and Rojas, 2017: 118 (among the 101 species in a study on cranefly hotspots in unmanaged and managed forests) (in Danish).
Finland
Biology. Salmela, 2008: 10, 27, 50 (49) (ecology or habitat: lotic; phenology).
Habitat. Rasimus, 2018: 17 (on saproxylic craneflies in the Tampere region) (in Finnish).
Germany
Habitat. Reusch and Hohmann, 2009: 129 (from spring brooks).
Phenology. Wagner, 2011b: 373 (graph showing seasonal emergence sequence, june to august but predominantly in july) (as ochrescens).
Habitat. Reiff et al., 2015: 234 (loc(s) Baden-Wurttemberg with list of habitats).
Great Britain
Habitat. Godfrey, 1999: 78 (species of shaded streams and rivers).
Lithuania
Habitat. Podeniene and Gelhaus, 2002: 69 (larvae in the riparian zone of small rivulet, between sand, silt and leaf litter).
Habitat. Podeniene, 2002: 306 (larvae were found in riparian zones of small rivulet).
Habitat. Podeniene, 2003a: 1-295 (larva, descr, figs, habitat) (in Lithuanian).
Habitat. Podeniene, 2003b: 11, 21, 28 (larval habitat: sand and silt in riparian zone of small rivulets).
Habitat. Podeniene, 2009: 137 (semi-aquatic species preferring sandy exposed riverine sediments; studied were larvae found in the riparian zone (in sand, silt and leaf litter)).
Norway
Habitat. Olsen and Andersen, 2021: 209 (loc(s) Innlandet, in former Hedmark, with habitats specified separately, for habitats see also Jonassen and Andersen, 2020).
Poland
Habitat. Wiedenska, 2014: 13 (on the occurence of Limoniidae in six selected plant communities in the Kamienica Valley, Gorce National Park, Western Carpathians) (in Polish, habitat tables also in English).
Phenology. Wiedenska, 2015a: 53 (on the flight activity of Limoniidae in the Kamienica Valley, Gorce National Park, Western Carpathians) (in Polish, tables also in English).
Habitat. Wiedenska, 2017a: 17 (faunistic and habitat data of species from the Gorce NP) (in Polish).
Romania
Habitat. Ujvarosi and Poti, 2006: 256 (habitat in Dupa Lunca marshland: shrubs along rivers and streams).
Habitat. Ujvarosi et al., 2011b: 107 (loc(s) Dupa Lanca marshy area near Voslobeni) (in Hungarian, species list with habitat information in English).
on characters and taxonomy (mainly from 2000 onward):
Great Britain
Characters. Kramer and Morris, 2022a: 14 (diagnosis, figs).
Lithuania
Immatures. Podeniene, 2003a: 1-295 (larva, descr, figs, habitat) (in Lithuanian).
Immatures. Podeniene, 2009: 137-139 (descr larva, figs).
on distribution (mainly from 2000 onward):
Bosnia-Herzegowina
Distribution. Graf et al., 2023: 34 (inventory of the upper Neretva, an unimpacted riverine system embedded in dense natural and near-natural forest; see paper for details).
First record. Kolcsar et al., 2023b: 26 (loc(s)).
Bulgaria
Distribution. Hubenov, 2016: 48 (annotated checklist Diptera of the Rila Mountains based on data from the literature).
Distribution. Hubenov, 2017: 68 (on vertical distribution in the Pirin and Rila Mts; see paper for details on forests and subalpine-alpine zones, distr).
Distribution. Hubenov, 2021a: 33 (checklist with summary of distr in Bulgaria, references).
Distribution. Hubenov, 2025b: suppl: 4 (annotated list Diptera high Bulgarian mts, local distr, habitats and zoogeography).
Czech Rep.
Distribution. Stary et al., 2005a: 28 (loc(s)).
Distribution. Stary, 2009i: webpage (checklist).
Distribution. Stary and Vonicka, 2018: 57 (on Limoniidae and Pediciidae of two localities in northern Bohemia, with list of localities, altitudes and habitats).
Denmark
Distribution. Petersen and Jong, 2001b: 150 (checklist).
Finland
Distribution. Salmela et al., 2007b: 45 (loc(s)).
Distribution. Salmela, 2008: 10, 50 (49) (loc(s), known from all Finnish ecoregions).
Distribution. Salmela, 2012b: 238 (annotated list of Finnish crane flies).
Distribution. Salmela and Petrasiunas, 2014: 25 (checklist Finnish Tipulomorpha).
Distribution. Rasimus, 2018: 17 (on saproxylic craneflies in the Tampere region) (in Finnish).
Germany
Distribution. Schacht, 1999: 135 (checklist Bayern).
Distribution. Reusch and Oosterbroek, 2000: 158 (checklist German Bundeslander).
Distribution. Reusch and Bellstedt, 2001b: 73 (checklist Thuringen).
Distribution. Reusch et al., 2004: 114 (loc(s) Brandenburg).
Distribution. Schacht, 2005: 5 (checklist Bayern).
Distribution. Reusch and Hohmann, 2009: 129 (loc(s) Sachsen-Anhalt).
Distribution. Schacht, 2010: 17 (checklist Diptera Bayern).
Distribution. Wagner, 2011b: 372 (dominant at the Breitenbach stream; showing a distinct distribution pattern along the stream with decreasing downstream abundance).
Distribution. Reiff et al., 2015: 234 (loc(s) Baden-Wurttemberg with list of habitats).
Distribution. Stuke, 2019: 144 (checklist Niedersachsen and Bremen with reference to original sources).
Great Britain
Distribution. Hewitt et al., 2005: 38 (loc(s) Cumbria) (as ochrescens).
Distribution. Kramer, 2013g: 2 (loc(s) Lancaster).
Distribution. Hewitt, 2014: (provisional checklist Cumbrian Diptera).
Distribution. Brighton, 2017c: 26 (overall regional checklist Lancashire and Cheshire (VC58, 59 and 60) with notes on habitats and/or regional occurrence and/or status; see paper for details).
Distribution. Kramer and Morris, 2022a: 14 (info on the species, on the distr and map of loc(s) Leicestershire and Rutland (VC55)).
Greece
First record. Kolcsar et al., 2015: 8 (loc(s) Ioanina).
Hungary
First record. Stary, 2001b: 201 (loc(s), distr).
Ireland
Distribution. Ashe et al., 2007b: 362, 379, 404 (review Irish records, map).
Distribution. Chandler et al., 2008: 10 (checklist).
Latvia
First record. Kolcsar et al., 2021b: 164 (loc(s)).
Lithuania
Distribution. Podeniene and Gelhaus, 2002: 69 (loc(s)).
Distribution. Podeniene, 2002: 306 (loc(s)).
Distribution. Pakalniskis et al., 2006: 22 (checklist).
Distribution. Podeniene, 2009: 137 (loc(s)).
Netherlands
Distribution. Jong and Oosterbroek, 2002b: 29 (checklist).
North Macedonia
First record. Kolcsar et al., 2021b: 164 (loc(s)).
Norway
First record. Solem, 1996: 190 (checklist limnofauna Norway) (as ochrescens).
Distribution. Olsen et al., 2018: 156-157 (annotated checklist Nordic countries and for Norway according to the Strand regions).
Distribution. Olsen and Andersen, 2021: 209 (loc(s) Innlandet, in former Hedmark, with habitats specified separately, for habitats see also Jonassen and Andersen, 2020).
Poland
Distribution. Wiedenska, 2007a: 76 (checklist).
Distribution. Wiedenska, 2010: 134 (loc(s) Parku Krajobrazowego Wzniesien Lodzkich, Lodz).
Distribution. Wiedenska, 2014: 13 (on the occurence of Limoniidae in six selected plant communities in the Kamienica Valley, Gorce National Park, Western Carpathians) (in Polish, habitat tables also in English).
Distribution. Wiedenska, 2017a: 17 (faunistic and habitat data of species from the Gorce NP) (in Polish).
Distribution. Wiedenska and Syratt, 2023: 138 (loc(s) Bieszczady Mountains, distr and remarks).
Romania
Distribution. Ujvarosi, 2005a: 246 (no details).
Distribution. Parvu, 2006: 261 (loc(s)).
Distribution. Ujvarosi and Poti, 2006: 256 (loc(s) eastern Carpathians).
Distribution. Ujvarosi, 2007: 228-231 (checklist Limoniidae).
Distribution. Ujvarosi et al., 2011b: 107 (loc(s) Dupa Lanca marshy area near Voslobeni) (in Hungarian, species list with habitat information in English).
Russia
Distribution. Paramonov, 2015: 68 (loc(s) RUS: Saratovskaya oblast) (in Russian).
Distribution. Kolcsar et al., 2021b: 164-166 (loc(s) RUN and RUE).
Serbia
First record. Kolcsar et al., 2021b: 166 (loc(s)).
Slovakia
Distribution. Stary, 2009d: 30 (loc(s) Polana area).
Distribution. Stary, 2009i: webpage (checklist).
Switzerland
Distribution. Podenas et al., 2006: 107, 291 (map, vertical distr per thermic level).
Distribution. Dufour and Merz, 2012: 354 (annotated checklist canton Geneva).
on flight period (mainly from 2000 onward):
Bosnia-Herzegowina
Kolcsar et al., 2023b: month(s): 6.
Bulgaria
Hubenov, 2016: month(s): 8.
Czech Rep.
Stary et al., 2005a: month(s): 5-6.
Stary and Vonicka, 2018: month(s): 6-8.
Finland
Salmela, 2008: month(s): 7.
Germany
Reusch et al., 2004: month(s): 8.
Wagner, 2011b: month(s): 7.
Reiff et al., 2015: month(s): 5.
Great Britain
Kramer, 2013g: month(s): 7.
Greece
Kolcsar et al., 2015: month(s): 8.
Hungary
Stary, 2001b: month(s): 8.
Ireland
Ashe et al., 2007b: month(s): 6-9.
Latvia
Kolcsar et al., 2021b: month(s): 7.
North Macedonia
Kolcsar et al., 2021b: month(s): 6.
Norway
Olsen and Andersen, 2021: month(s): (6-7).
Poland
Wiedenska, 2014: month(s): 7-8.
Wiedenska, 2015a: month(s): 7-8.
Wiedenska, 2017a: month(s): 7-8.
Wiedenska and Syratt, 2023: month(s): 6-8.
Romania
Parvu, 2006: month(s): 7.
Ujvarosi et al., 2011b: month(s): 6.
Russia
Paramonov, 2015: month(s): 8.
Kolcsar et al., 2021b: month(s): 7-8.
Serbia
Kolcsar et al., 2021b: month(s): 7.
Slovakia
Stary, 2009d: month(s): 6-7, 9.
Switzerland
Podenas et al., 2006: month(s): 6-10.
on altitude (mainly from 2000 onward):
Bosnia-Herzegowina
Kolcsar et al., 2023b: altitude: 650 m.
Bulgaria
Hubenov, 2016: altitude: 1147-1250 m.
Hubenov, 2017: altitude: 1147-1250 m.
Hubenov, 2021a: altitude: 1147-1250 m.
Hubenov, 2025b: altitude: 1147-1250 m.
Germany
Reusch et al., 2004: altitude: 80 m.
Reusch and Hohmann, 2009: altitude: 550 m.
Reiff et al., 2015: altitude: 652 m.
Greece
Kolcsar et al., 2015: altitude: 1750 m.
Latvia
Kolcsar et al., 2021b: altitude: 13 m.
North Macedonia
Kolcsar et al., 2021b: altitude: 755 m.
Norway
Olsen and Andersen, 2021: altitude: 239 m.
Poland
Wiedenska, 2017a: altitude: 450-930 m.
Wiedenska and Syratt, 2023: altitude: 500-850 m.
Romania
Ujvarosi and Poti, 2006: altitude: 670 m.
Russia
Kolcsar et al., 2021b: altitude: 50-607 m.
Serbia
Kolcsar et al., 2021b: altitude: 648 m.
Slovakia
Stary, 2009d: altitude: 560-780 m.

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