Bibio johannis (Linnaeus, 1767)
(a St Mark’s fly)

Taxonomic hierarchy:
SpeciesBibio johannis (a St Mark’s fly)
GenusBibio (St Mark’s flies)
FamilyBIBIONIDAE (St Mark’s flies, fever flies)
SuperfamilyBIBIONOIDEA (St Mark’s flies, fever flies)
InfraorderBibionomorpha (St Mark’s flies, fever flies)
SuborderNEMATOCERA (thread-horned flies, gnat)
OrderDIPTERA (two-winged flies)
Division Endopterygota (bees, beetles, flies, moths and other insects with wings developing internally)
InfraclassNeoptera (bees, beetles, flies, grasshoppers, moths and other advanced insects)
SubclassPTERYGOTA (bees, beetles, dragonflies, flies, grasshoppers, moths and other winged insects)
ClassINSECTA (true insects)
SubphylumHEXAPODA (insects and other 6-legged organisms)
PhylumARTHROPODA (arthropods)
SuperphylumECDYSOZOA (skin shedders)
CladeBilateria (bilaterally symmetrical animals)
SubkingdomEUMETAZOA (metazoans)
KingdomANIMALIA (animals)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Bibio johannis (a St Mark’s fly) :
1: Bibio johannis (a St Mark’s fly)
19 Apr 2018 OSGR: SY98 50° 40’ N, 2° 0’ W Vice County: Dorset (VC 9) England
Male, in flight
Image 1: Male - dorsal view - wings apart - highly enlarged - silver background
2: Bibio johannis (a St Mark’s fly)
12 Apr 2016 OSGR: SU01 50° 60’ N, 1° 60’ W Vice County: South Wilts (VC 8) England
2 males, swept off grass; also in flight
Image 1: Male - dorsal view - highly enlarged - silver backgroundImage 2: Wing - magnified - white background
3: Bibio johannis (a St Mark’s fly)
24 Apr 2013 OSGR: SY67 50° 30’ N, 2° 30’ W Vice County: Dorset (VC 9) England
Male, resting on white-painted garden wall
Image 1: Male - dorsal view - wings apart - highly enlarged - grey backgroundImage 2: Male - dorsal view - wings together - highly enlarged - grey backgroundImage 3: Male - head and thorax - dorsal view - magnified - grey backgroundImage 4: Male - head and thorax - lateral view - magnified - grey backgroundImage 5: Male - lateral view - highly enlarged - grey backgroundImage 6: Male - ventral view - highly enlarged - grey backgroundImage 7: Wing - magnified - grey backgroundImage 8: Male - fore tibiae - anterior view - microscope low magnification - grey backgroundImage 9: Male - head - anterior view - microscope low magnification - grey background
4: Bibio johannis (a St Mark’s fly)
9 May 1997 OSGR: SU57 51° 30’ N, 1° 10’ W Vice County: Berks (VC 22) England
swept from bluebells
Image 1: Female - lateral view - white background
5: Bibio johannis (a St Mark’s fly)
9 May 1997 OSGR: SU57 51° 30’ N, 1° 10’ W Vice County: Berks (VC 22) England
on beech trunk, at night
Image 1: Female - dorso-lateral view - white backgroundImage 2: Female - latero-ventral view - white background
6: Bibio johannis (a St Mark’s fly)
2 May 1970 OSGR: TG10 52° 40’ N, 1° 10’ E Vice County: East Norfolk (VC 27) England
Image 1: Female - lateral view - enlarged

Bibio johannis (a St Mark’s fly) may be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Bibio johannis (a St Mark’s fly)
BioInfoBioInfo (www.bioinfo.org.uk) has 0 host/parasite/foodplant and/or other relationships for Bibio johannis (a St Mark’s fly)
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