Benign-parasitism
Guides
Cuterebra buccata
rabbit bot fly
Cuterebra buccata is a New World bot fly in the family Oestridae, commonly known as the rabbit bot fly. Adults are large, bumble bee-sized flies that lack functional mouthparts and do not feed. The species is host-specific to lagomorphs, particularly cottontail rabbits (Sylvilagus floridanus). Larvae develop subcutaneously in warbles, feeding on host fluids rather than tissue. Adults are rarely encountered in the field and have short lifespans focused on reproduction.
bot-flymyiasisparasitelagomorphrabbitOestridaeCuterebrinaebumble-bee-mimicrywarblesubcutaneous-parasitehost-specificnon-feeding-adultpupariumCuterebraSylvilaguscottontail-rabbitNew-WorldNorth-AmericaVirginiaMissouriVermontspring-emergencelate-summer-prevalencerarely-encounteredshort-lived-adultevolutionary-coevolutionbenign-parasitismsoil-pupationlarval-migrationsubcutaneous-developmentDipteraInsectaentomologymedical-entomologyveterinary-entomologywildlife-diseaseparasitologyhost-parasite-interactioncuterebridrabbit-parasitelagomorph-parasitebotwarble-flygadflyOestrus-buccataFabricius-1775Cuterebra-buccata-(Fabricius,-1775)Cuterebra fontinella fontinella
mouse bot fly, white-footed mouse bot fly
Cuterebra fontinella fontinella is a subspecies of New World bot fly (family Oestridae) that parasitizes small mammals, primarily white-footed mice (Peromyscus leucopus). The adult flies are large, bumble bee-sized, and lack functional mouthparts, living only briefly to reproduce. Females lay eggs near host burrow entrances; larvae hatch in response to host body heat, enter through orifices or wounds, and develop subcutaneously for approximately one month before exiting to pupate in soil. Despite forming conspicuous warbles that can reach 5% of host body weight, infections appear to have minimal negative impact on host survival and may even correlate with increased longevity in some populations.