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

Xyphosia miliaria (Schrank, 1781)

Distel-Bohrfliege Mottled Thistle Fly

Synonyms and other combinations:

Musca miliaria Schrank, 1781 | Musca arcuata Fabricius, 1781 | Oxyphora miliara Becker, 1905 | Trupanea sphaerocephali Schrank, 1803 | Trypeta meridionalis Costa, 1854 | Xyphosia balcanica Drensky, 1943 | Xyphosia cirsiorum Robineau-Desvoidy, 1830 |

  • Xyphosia miliaria, female  862
    Xyphosia miliaria (Schrank, 1781)  Distel-Bohrfliege  Mottled Thistle Fly 
    Xyphosia miliaria, female
    DE, Chemnitz, Harthwald; 2005-06-26 14:09:27
    Image number: 862
    DE, Chemnitz, Harthwald
    2005-06-26 14:09:27

  • Xyphosia miliaria, female  863
    Xyphosia miliaria (Schrank, 1781)  Distel-Bohrfliege  Mottled Thistle Fly 
    Xyphosia miliaria, female
    DE, Chemnitz, Harthwald; 2005-06-26 14:07:24
    Image number: 863
    DE, Chemnitz, Harthwald
    2005-06-26 14:07:24

  • Xyphosia miliaria, male  1067
    Xyphosia miliaria (Schrank, 1781)  Distel-Bohrfliege  Mottled Thistle Fly 
    Xyphosia miliaria, male
    DE, Chemnitz; 2003-06-07 11:46:51
    Image number: 1067
    DE, Chemnitz
    2003-06-07 11:46:51

  • Xyphosia miliaria  4178
    Xyphosia miliaria (Schrank, 1781)  Distel-Bohrfliege  Mottled Thistle Fly 
    Xyphosia miliaria
    DE, Chemnitz, Zeisigwald; 2010-06-26 12:01:21
    Image number: 4178

    DE, Chemnitz, Zeisigwald
    2010-06-26 12:01:21

  • Xyphosia miliaria, mating  8585
    Xyphosia miliaria (Schrank, 1781)  Distel-Bohrfliege  Mottled Thistle Fly 
    Xyphosia miliaria, mating
    DE, Chemnitz, Hutholz; 2018-05-28 11:34:59
    Image number: 8585
    DE, Chemnitz, Hutholz
    2018-05-28 11:34:59

Xyphosia miliaria belongs to the subfamily Tephritinae, tribe Xyphosiini.
Palearctic (Europe, Eastern Palearctic, Near East).
Very common in large parts of Europe.
Preferably in forest areas, in semi-shady, rather humid places.
The orange-yellow colored fly has a wing length of 3.7 - 6.3 mm. The wings are strikingly patterned. Males and females can be easily distinguished by looking at the abdomen. This ends in the females with an orange ovipositor with a dark tip. The rounded abdomen of the males appears shorter.
The Mottled Thistle Fly (Xyphosia miliaria) flies from the end of May to September.
The oligophagous larvae develop in the flower heads of thistles, where they feed on achenes, pappi and receptacles. The host plants include field thistle (Cirsium arvense), marsh thistle (Cirsium palustre), common thistle (Cirsium vulgare), further Cirsium species, some Carduus species and the cotton thistle (Onopordum acanthium).

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. Michael Drees: Die Bohr- und Schmuckfliegen des Raumes Hagen (Diptera: Tephritidae, Ulidiidae, Platystomatidae), Entomologische Zeitschrift, Schwanfeld, 126 (1) 2016, S. 47-57.
  3. Ian M. White (1988). Handbooks for the Identification of British Insects. Tephritid Flies. Diptera: Tephritidae. Vol: 10 - Part 5a. Royal Entomological Society of London.
  4. Plant Parasites of Europe