Chrysops viduatus (Fabricius, 1794)
(Square-spot Deerfly)

Taxonomic hierarchy:
SpeciesChrysops viduatus (Square-spot Deerfly)
GenusChrysops (deerflies)
FamilyTABANIDAE (horseflies, deerflies, gad flies, stouts, clegs, horsefly)
SuperfamilyTABANOIDEA (horseflies, snipe flies & water snipe flies)
InfraorderTabanomorpha (horseflies, snipe flies & soldier flies)
SuborderBRACHYCERA (short-horned flies)
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 Chrysops viduatus (Square-spot Deerfly) :
1: Chrysops viduatus (Square-spot Deerfly)
10 Jul 2015 OSGR: SY98 50° 40’ N, 2° 0’ W Vice County: Dorset (VC 9) England
Male, attracted to hot car.
Image 1: Male - abdomen - dorsal view - highly enlarged - silver backgroundImage 2: Male - dorsal view - enlarged - silver backgroundImage 3: Male - head and thorax - dorsal view - highly enlarged - silver backgroundImage 4: Male - head - anterior view - magnified - silver backgroundImage 5: Male - head - dorsal view - highly enlarged - silver backgroundImage 6: Male - ventral view - enlarged - silver backgroundImage 7: Male - wing - highly enlarged - white background
2: Chrysops viduatus (Square-spot Deerfly)
10 Jul 2015 OSGR: SY98 50° 40’ N, 2° 0’ W Vice County: Dorset (VC 9) England
Male, attracted to hot car.
Image 1: Male - head and thorax - lateral view - highly enlarged - silver backgroundImage 2: Male - head - lateral view - highly enlarged - silver backgroundImage 3: Male - lateral view - highly enlarged - silver background
3: Chrysops viduatus (Square-spot Deerfly)
10 Jul 2015 OSGR: SY98 50° 40’ N, 2° 0’ W Vice County: Dorset (VC 9) England
Female, attracted to hot car.
Image 1: Female - abdomen - dorsal view - highly enlarged - silver backgroundImage 2: Female - dorsal view - highly enlarged - silver backgroundImage 3: Female - head and thorax - dorsal view - highly enlarged - silver backgroundImage 4: Female - head and thorax - lateral view - highly enlarged - silver backgroundImage 5: Female - head - anterior view - magnified - silver backgroundImage 6: Female - head - dorsal view - highly enlarged - silver backgroundImage 7: Female - head - lateral view - highly enlarged - silver backgroundImage 8: Female - lateral view - highly enlarged - silver backgroundImage 9: Female - ventral view - highly enlarged - silver backgroundImage 10: Female - wing - highly enlarged - white background
4: Chrysops viduatus (Square-spot Deerfly)
23 Jul 2013 OSGR: SZ08 50° 40’ N, 1° 60’ W Vice County: Dorset (VC 9) England
inside hot car after I got in
Image 1: Female - dorsal view - highly enlarged - silver backgroundImage 2: Female - lateral view - highly enlarged - silver backgroundImage 3: Female - ventral view - highly enlarged - silver background

Chrysops viduatus (Square-spot Deerfly) may be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Chrysops viduatus (Square-spot Deerfly)
BioInfoBioInfo (www.bioinfo.org.uk) has 0 host/parasite/foodplant and/or other relationships for Chrysops viduatus (Square-spot Deerfly)
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