Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Interested in a 2022 BugGuide gathering in New Mexico?

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Previous events


TaxonomyBrowse
Info
ImagesLinksBooksData

Genus Cuterebra - Rodent and Lagomorph Bot Flies

Cuterebra austeni - male Newly emerged rabbit bot fly w/ cast puparium - Cuterebra buccata female bot fly - Cuterebra approximata - female Syrphidae? - Cuterebra emasculator Bot Fly - Cuterebra Cuterebra species? - Cuterebra fontinella - female Cuterebra americana group - Cuterebra Cuterebra sp.? - Cuterebra emasculator
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Calyptratae)
Superfamily Oestroidea
Family Oestridae (Bot Flies)
Subfamily Cuterebrinae (New World Skin Bot Flies)
Genus Cuterebra (Rodent and Lagomorph Bot Flies)
Other Common Names
Rabbit Bots; Rodent Bots
Pronunciation
q-teh-REB-ruh
Numbers
26 spp. in our area(1)
Size
Large flies, typically bumble bee size.
Range
most of NA
Habitat
Habitat is less important to these flies than the host mammals. Habitat-specific rodents or rabbits means habitat-specific species of bots.
Life Cycle
Females typically deposit eggs in the burrows and "runs" of rodent or rabbit hosts. A warm body passing by the eggs causes them to hatch almost instantly and the larvae glom onto the host. The larvae are subcutaneous (under the skin) parasites of the host. Their presence is easily detected as a tumor-like bulge, often in the throat or neck or flanks of the host. The larvae breathe by everting the anal spiracles out a hole (so they are oriented head-down inside the host). They feed on the flesh of the host, but only rarely does the host die as a result.
Remarks
Larvae are common. George "Jeff" Boettner tells of live-trapping rodents where up to 80% of the populations had bot parasitism. Adult flies are almost never seen, though in western North America the males are known to "hilltop" from about 9 AM until noon on isolated buttes in arid habitats.