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

Eristalis (Eoseristalis) intricaria (Linnaeus, 1758)


Synonyms and other combinations:

Conops leucorrhaeus Scopoli, 1763 | Eristalis furvus Verrall, 1901 | Musca fuscus Harris, 1776 | Musca intricata Turton, 1801 | Syrphus aureus Panzer, 1805 | Syrphus bombyliformis Fabricius, 1794 |

  • Eristalis intricaria, female  4537
    Eristalis intricaria (Linnaeus, 1758)  Hummel-Keilfleckschwebfliege   
    Eristalis intricaria, female, det. Andre
    DE, Chemnitz, Zeisigwald; 2011-05-01 09:38:02
    Image number: 4537
    DE, Chemnitz, Zeisigwald
    2011-05-01 09:38:02
    det. Andre
  • Eristalis intricaria, male  663
    Eristalis intricaria (Linnaeus, 1758)  Hummel-Keilfleckschwebfliege   
    Eristalis intricaria, male
    DE, Chemnitz, Zeisigwald; 2006-07-09 11:15:52
    Image number: 663
    DE, Chemnitz, Zeisigwald
    2006-07-09 11:15:52

  • Eristalis intricaria, male  10198
    Eristalis intricaria (Linnaeus, 1758)  Hummel-Keilfleckschwebfliege   
    Eristalis intricaria, male
    DE, Chemnitz, Stadtpark; 2021-08-25 13:03:39
    Image number: 10198
    DE, Chemnitz, Stadtpark
    2021-08-25 13:03:39

  • Eristalis intricaria, male  10199
    Eristalis intricaria (Linnaeus, 1758)  Hummel-Keilfleckschwebfliege   
    Eristalis intricaria, male
    DE, Chemnitz, Stadtpark; 2021-08-25 13:03:58
    Image number: 10199
    DE, Chemnitz, Stadtpark
    2021-08-25 13:03:58

  • Eristalis intricaria, male  10200
    Eristalis intricaria (Linnaeus, 1758)  Hummel-Keilfleckschwebfliege   
    Eristalis intricaria, male
    DE, Chemnitz, Stadtpark; 2021-08-25 13:03:45
    Image number: 10200
    DE, Chemnitz, Stadtpark
    2021-08-25 13:03:45

Eristalis intricaria belongs to the subfamily Eristalinae, tribe Eristalini.
Iceland, Fennoscandia south to central Spain, but increasingly confined to mountainous regions towards the southern limit of its range and absent from much of southern Europe; from Ireland eastwards through much of northern and central Europe into Russia as far as eastern Siberia.
Preferred in humid environment, wet meadows, boggy pastures, open forests, forest edges, parks and gardens.
Eristalis intricaria has a body length of 11 - 14 mm. Thorax and abdomen are hummel-like long and densely hairy. The thorax hair is usually reddish yellow, rarely black. The scutellum is brownish yellow. In females, the abdomen is reddish yellow at the front, black in the middle and white hairy at the back or even completely black hairy. The abdomen of the males is reddish hairy, white at the tip or completely black hairy. The face is whitish hairy and has a bare black central stripe. The arista is hairy. The wing center shows a narrow dark zigzag band. The legs are mainly black, the upper part of the tibiae is colored white.
Eristalis intricaria flies from April to Oktober. Adults visit flowers of a wide range of herbs, shrubs and trees.
The larvae develop in stagnant, muddy water that is rich in decaying organic matter. Eristalis intricaria overwinters in the last larval stage.

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
  4. Menno Reemer, Willem Renema, Wouter van Steenis, Theo Zeegers, Aat Barendregt, John T. Smit, Mark P. van Veen, Jeroen van Steenis, Laurens van der Leij: De Nederlandse Zweefvliegen (Diptera: Syrphidae), Nederlandse Fauna 8, 2009.