Phylum Arthropoda (Arthropods) ➔ Subphylum Hexapoda (Hexapods) ➔ Class Insecta (Insects) ➔ Order Diptera (True flies) ➔ Family Syrphidae (Hoverflies)

Chalcosyrphus (Xylotomima) nemorum (Fabricius, 1805)

Kurze Langbauchschwebfliege

Synonyms and other combinations:

Syrphus interruptus Panzer, 1804 | Xylota arsenjevi Violovitsh, 1980 | Xylota baton Walker, 1849 | Xylota fraudulosa Loew, 1864 | Xylotomima americana Shannon, 1926 |

  • Chalcosyrphus nemorum, male  1217
    Chalcosyrphus nemorum (Fabricius, 1805)  Kurze Langbauchschwebfliege   
    Chalcosyrphus nemorum, male, det. Lukasz Mielczarek
    DE, Chemnitz, Zeisigwald; 2009-08-08 13:00:56
    Image number: 1217
    DE, Chemnitz, Zeisigwald
    2009-08-08 13:00:56
    det. Lukasz Mielczarek
  • Chalcosyrphus nemorum, female  11228
    Chalcosyrphus nemorum (Fabricius, 1805)  Kurze Langbauchschwebfliege   
    Chalcosyrphus nemorum, female, conf. eklans
    DE, Chemnitz, Harthwald; 2023-06-08 14:05:41
    Image number: 11228
    DE, Chemnitz, Harthwald
    2023-06-08 14:05:41
    conf. eklans

Chalcosyrphus nemorum belongs to the subfamily Eristalinae, tribe Milesiini.
Fennoscandia south to the Pyrenees; Ireland eastwards through much of northern, central and southern Europe (to southern Italy) into Russia and on to the Pacific coast (Sakhalin, Japan); in North America from Alaska to Nova Scotia and south to California.
Preferably in wet deciduous and mixed forests, often at the edge of waters.
The fly has a body length of 7 - 10 mm. The thorax is dark. The short abdomen has orange / yellowish spots on the 2nd and 3rd segments.
Chalcosyrphus nemorum flies from April to September. Adults visit white umbellifers, Anemone nemorosa, Caltha, Euphorbia amygdaloides, Potentilla erecta, Ranunculus, Rubus idaeus, Sorbus aucuparia and Taraxacum.
The larvae live under the bark of water-sotten timber and in damp tree rot-holes.

References, further reading, links:
  1. Pape T. & Thompson F.C. (eds) (2017). Systema Dipterorum (version 2.0, Jan 2011). In: Species 2000 & ITIS Catalogue of Life, 2017 Annual Checklist (Roskov Y., Abucay L., Orrell T., Nicolson D., Bailly N., Kirk P.M., Bourgoin T., DeWalt R.E., Decock W., De Wever A., Nieukerken E. van, Zarucchi J., Penev L., eds.). Digital resource at Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X.
  2. M.C.D.Speight: Species Accounts of European Syrphidae (Diptera), Glasgow 2011, Syrph the Net, the database of European Syrphidae, vol. 65, 285 pp., Syrph the Net publications, Dublin.
  3. Gerald Bothe: Bestimmungsschl├╝ssel f├╝r die Schwebfliegen (Diptera, Syrphidae) Deutschlands und der Niederlande, DJN, 1984, ISBN 3-923376-07-3