Attributes of Papilio multicaudata
Two-tailed Swallowtail
Papilio multicaudata W.F. Kirby, 1884
Family: Papilionidae
Subfamily: Papilioninae
Identification: Upper surface of male forewing with narrow black stripes. Each hindwing has 2 tails.
Wing Span: 3 1/2 - 5 inches (9 - 12.7 cm).
Life History: Males patrol stream courses or city streets for receptive females. Eggs are laid singly on leaves of host plant. Caterpillars eat leaves and rest on silken mats in shelters of curled leaves. Chrysalids hibernate.
Flight: One flight May to mid-August in North, most of year in South.
Caterpillar Hosts: Leaves of ash (Fraxinus), hop tree (Ptelea), and chokecherry (Prunus).
Adult Food: Nectar from thistles, milkweeds, California buckeye, lilac, and many others.
Habitat: Foothill slopes and canyons, moist valleys, streamsides, woodlands, parks, roadsides, suburbs, and cities.
Range: Western North America south from British Columbia, east to central Nebraska and central Texas, south through Mexico.
Conservation: Not usually required.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: None noted.
Taxonomy Notes:
The map below displays all verified sighting records in the BAMONA database for this species. Each record is indicated with a yellow dot. The orange dots on the map provide access to information about the 400 most recently verified sightings of this species. In some instances, there are several records at the same location. Use the table view to access these records.
Instructions: Click on the map and move your mouse to pan.
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The fifty most recently verified sightings are below. See more recently verified sightings of all species.
| Observation Date | Submitter | Region |
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| April 19, 2013 | whbauer | Blanco County, Texas, United States | April 20, 2013 | Details | |
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March 27, 2013 | dwwhatley | Texas, Travis County, United States | March 30, 2013 | Details |
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March 13, 2013 | sallyatticum | Texas, Travis County, United States | March 14, 2013 | Details |
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June 09, 2012 | J_Martineau | Sheridan County, Wyoming, United States | February 05, 2013 | Details |
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July 27, 2012 | reversibleraincoat | Butte County, Idaho, United States | January 22, 2013 | Details |
| December 03, 2012 | BrynneD1 | Hays County, Texas, United States | January 19, 2013 | Details | |
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June 04, 1972 | stomlins701 | Bexar County, Texas, United States | December 26, 2012 | Details |
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May 20, 2012 | Ethan Hall | Cache County, Utah, United States | December 20, 2012 | Details |
| June 17, 1981 | legacy.reporter (Oakley Shields) | Churchill County, Nevada, United States | December 01, 2012 | Details | |
| July 09, 1982 | legacy.reporter (K Hansen-S. Mattoon) | Elko County, Nevada, United States | December 01, 2012 | Details | |
| July 11, 1982 | legacy.reporter (K Hansen-S. Mattoon) | Elko County, Nevada, United States | December 01, 2012 | Details | |
| March 29, 1984 | legacy.reporter (George T. Austin) | Clark County, Nevada, United States | December 01, 2012 | Details | |
| August 17, 1988 | legacy.reporter (George T. Austin) | Clark County, Nevada, United States | December 01, 2012 | Details | |
| September 05, 1983 | legacy.reporter (D. Parkinson) | Cochise County, Arizona, United States | December 01, 2012 | Details | |
| July 20, 1995 | legacy.reporter (Robert L. Langston) | Humboldt County, Nevada, United States | December 01, 2012 | Details | |
| April 27, 1978 | legacy.reporter (C. S. Lawson) | Clark County, Nevada, United States | December 01, 2012 | Details | |
| May 17, 1978 | legacy.reporter (C. S. Lawson) | Clark County, Nevada, United States | December 01, 2012 | Details | |
| May 20, 1979 | legacy.reporter (George T. Austin) | Clark County, Nevada, United States | December 01, 2012 | Details | |
| May 29, 1978 | legacy.reporter (George T. Austin) | Clark County, Nevada, United States | December 01, 2012 | Details | |
| June 07, 1978 | legacy.reporter (C. S. Lawson) | Clark County, Nevada, United States | December 01, 2012 | Details | |
| July 22, 1999 | legacy.reporter (Robert L. Langston) | Lander County, Nevada, United States | December 01, 2012 | Details | |
| August 09, 1999 | legacy.reporter (Ray Stanford) | Esmeralda County, Nevada, United States | December 01, 2012 | Details | |
| March 31, 1994 | legacy.reporter (Lauritz Muehlbach) | Yavapai County, Arizona, United States | December 01, 2012 | Details | |
| April 12, 1994 | legacy.reporter (Lauritz Muehlbach) | Yavapai County, Arizona, United States | December 01, 2012 | Details | |
| April 18, 1994 | legacy.reporter (Lauritz Muehlbach) | Yavapai County, Arizona, United States | December 01, 2012 | Details | |
| September 10, 1994 | legacy.reporter (Lauritz Muehlbach) | Yavapai County, Arizona, United States | December 01, 2012 | Details | |
| September 18, 1994 | legacy.reporter (Lauritz Muehlbach) | Yavapai County, Arizona, United States | December 01, 2012 | Details | |
| February 16, 2006 | legacy.reporter (Robert Behrstock) | Cochise County, Arizona, United States | December 01, 2012 | Details | |
| July 08, 2002 | legacy.reporter (Ray & Kit Stanford) | Esmeralda County, Nevada, United States | December 01, 2012 | Details | |
| June 06, 2001 | legacy.reporter (Robert L. Langston) | Elko County, Nevada, United States | December 01, 2012 | Details | |
| May 08, 2002 | legacy.reporter (Paul Thompson) | White Pine County, Nevada, United States | December 01, 2012 | Details | |
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July 17, 2012 | rjadams | Cascade County, Montana, United States | October 12, 2012 | Details |
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September 30, 2012 | mules42 | Beaverhead County, Montana, United States | October 12, 2012 | Details |
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September 09, 2012 | Jeff Trahan | Cochise County, Arizona, United States | September 18, 2012 | Details |
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October 16, 2011 | myeager | Plumas County, California, United States | September 14, 2012 | Details |
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April 24, 2010 | stomlins701 | Bandera County, Texas, United States | August 31, 2012 | Details |
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July 27, 2006 | stomlins701 | Brewster County, Texas, United States | August 29, 2012 | Details |
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July 28, 2006 | stomlins701 | Texas, Presidio County, United States | August 29, 2012 | Details |
| July 23, 2012 | csgee | Cochise County, Arizona, United States | August 20, 2012 | Details | |
| June 06, 2012 | Gdasch | Weld County, Colorado, United States | July 21, 2012 | Details | |
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June 11, 2012 | Mickey Althouse | El Paso County, Colorado, United States | July 21, 2012 | Details |
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June 07, 2012 | Gtb111 | El Paso County, Colorado, United States | July 21, 2012 | Details |
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June 27, 2012 | PDunwiddie | Boulder County, Colorado, United States | July 21, 2012 | Details |
| May 26, 2012 | Birdal | Utah County, Utah, United States | July 01, 2012 | Details | |
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June 03, 2012 | Peter Ahlstrom | Utah County, Utah, United States | July 01, 2012 | Details |
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June 15, 2012 | chuckcmt | McCone County, Montana, United States | June 18, 2012 | Details |
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June 15, 2008 | hjbarkey9 | Routt County, Colorado, United States | May 15, 2012 | Details |
| August 05, 2011 | Tom McRoberts | Jefferson County, Colorado, United States | May 14, 2012 | Details | |
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September 12, 2011 | Julie Crowther | British Columbia, Canada | April 30, 2012 | Details |
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July 24, 2011 | calidris | Deschutes County, Oregon, United States | April 16, 2012 | Details |
















