The Oestridae, commonly called bot flies or warble flies, are found worldwide. Adults of extant forms have vestigial or completely lack mouthparts and do not feed, relying instead on stored body fats. They are known to congregate at hilltops and other elevated landmarks to mate. Larvae are subcutaneous in a variety of animals, some causing severe debilitation and death in their hosts.
Because the immatures are the most frequently encountered life
stage of this fly, this is also the most common stage recorded
in the fossil record. A total of seven species in 6 genera have
been described from fossils.
The oldest representatives of this family belong to undescribed
specimens recorded from the Eocene shales of Green River formation
in the Rocky Mountains of North America (Bradley, 1931).
ADIPTERITES Townsend, 1938: 166. Type species: Dipterites obovatus Heer, 1865, by original designation.
obovatus Heer, 1864: 394 (Dipterites). PA: Switzerland (Miocene) [C].
GIEBELIA Townsend, 1921: 133. Type species: Giebelia
ignota Townsend, 1921, by monotypy. [Preoccupied by Kellogg,
1896.]
AGIEBELIA Townsend, 1933: 420 (new replacement name for
Giebelia Townsend). Type species: Giebelia ignota
Townsend, 1921, automatic.
ignota Townsend, 1921: 133 (Giebelia). LU (Undetermined Tertiary) [C].
*COBBOLDIA Brauer, 1887: 218. Type species: Gastrophilus elephantis Cobbold, 1882, by monotypy.
MAMONTIA Grunin, 1973: 228. Type species: Cobboldia russanovi Grunin, 1973, by original designation.
russanovi Grunin, 1973: 228. PA: Russia (Siberia) (Pleistocene) [C].
*CUTEREBRA Clark, 1815: 64, 70. Type species: Oestrus
cuniculi Clark, 1797, by subsequent designation of Desmarest
in Chenu (1859: 247).
LITHOHYPODERMA Townsend, 1917: 129. Type species: Musca
acsarides Scudder, 1877, by original designation.
ascarides Scudder, 1877a: 757 (Musca). NE: USA
(Eocene) [C].
bibosa Scudder, 1877a: 757 (Musca). NE: USA (Eocene)
[C].
*DERMATOBIA Brauer, 1861: 782. Type species: Cuterebra cyaniventris Macquart, 1843 [= Oestrus hominis Linnaeus, 1781, by subsequent designation of Guimarães & Papavero (1966: 228).
hydropica Scudder, 1877a: 757 (Musca). NE: USA (Eocene) [C].
BERENDTIA Townsend, 1921: 133. Type species: Berendtia
baltica Townsend, 1921, by monotypy. [Preoccupied by Crossa
& Fischer, 1869.]
NOVOBERENDTIA Rapp, 1945: 172 (new replacement name for
Berendtia Townsend). Type species: Berendtia baltica
Townsend, 1921, automatic.
baltica Townsend, 1921: 133 (Berendtia). PA: Baltic Region (Eocene/Oligocene) [A].