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Modest sphinx
Pachysphinx modesta (Harris, 1839)
Family: Sphingidae
Subfamily: Sphinginae
Identification: Upperside of forewing is gray with the basal third lighter; sometimes the outer third also is light, leaving just the median band dark. Upperside of hindwing is gray with a crimson patch and an inward-pointing blue-black triangle near the outer margin.
Wing Span: 3 - 4 11/16 inches (7.6 - 12 cm).
Life History: Females lay eggs on leaves of the hosts, and the eggs hatch in about 9 days. Fully-grown caterpillars pupate and overwinter in shallow burrows in the ground.
Flight: . One brood in the north from June-July, two broods in the south from May-September.
Caterpillar Hosts: Poplar, aspen, and cottonwood (Populus) and willow (Salix).
Adult Food: Adults do not feed.
Habitat: Riparian areas and moist mountainsides.
Range: Maine south to north Florida; west to Washington, Oregon, Utah, New Mexico, and Texas. Also Baja California Norte.
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 reported.
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Verified Sightings
Displaying 385 - 408 of 796 verified sightings
Observation date: Jul 05, 2012
Submitted by: trever
Region: Marathon County, Wisconsin, United States
Verified by: Tom Middagh
Verified date: Dec 18, 2012
Observation date: Jun 28, 2011
Submitted by: ladymagpie
Region: Manitoba, Canada
Verified by: Robert Martin
Verified date: Nov 27, 2012
Observation date: Aug 06, 2012
Submitted by: raptorrunner
Region: Thurston County, Nebraska, United States
Verified by: rogerdowner
Verified date: Nov 23, 2012
Observation date: Nov 11, 2010
Submitted by: Mmercurio
Region: Albany County, New York, United States
Verified by: Ryan St Laurent
Verified date: Nov 16, 2012
Observation date: Jun 09, 2012
Submitted by: ellenjones6
Region: Franklin County, New York, United States
Verified by: Ryan St Laurent
Verified date: Oct 19, 2012
Observation date: May 12, 2012
Submitted by: curtis.lehman
Region: Centre County, Pennsylvania, United States
Verified by: curtis.lehman
Verified date: Sep 15, 2012
Observation date: Sep 10, 2012
Submitted by: CPJSJohnny
Region: Platte County, Missouri, United States
Verified by: Phillip E. Koenig
Verified date: Sep 13, 2012
Observation date: Jun 15, 2012
Submitted by: AJZ
Region: Douglas County, Colorado, United States
Verified by: charleseharp
Verified date: Sep 07, 2012
Observation date: Jun 04, 2007
Submitted by: hjbarkey9
Region: Routt County, Colorado, United States
Verified by: charleseharp
Verified date: Sep 07, 2012
Observation date: Jul 26, 2012
Submitted by: Stephanie Boucherle
Region: Mecklenburg County, North Carolina, United States
Verified by: rogerdowner
Verified date: Aug 08, 2012
Observation date: Jul 14, 2012
Submitted by: mikeakresh
Region: Windham County, Vermont, United States
Verified by: H.D. McGuinness
Verified date: Aug 06, 2012
Observation date: Jul 09, 2012
Submitted by: rboothby
Region: Cumberland County, Maine, United States
Verified by: anthony.thomas
Verified date: Jul 28, 2012
Observation date: Jun 19, 2012
Submitted by: Nixic
Region: Porter County, Indiana, United States
Verified by: rogerdowner
Verified date: Jul 07, 2012
Observation date: Jun 28, 2012
Submitted by: ascheirer
Region: Defiance County, Ohio, United States
Verified by: rogerdowner
Verified date: Jul 06, 2012
Observation date: Jun 18, 2012
Submitted by: Dwaine Wagoner
Region: Natrona County, Wyoming, United States
Verified by: kent
Verified date: Jul 02, 2012
Observation date: Jun 09, 2012
Submitted by: rlyons@fairpoint.net
Region: Rensselaer County, New York, United States
Verified by: H.D. McGuinness
Verified date: Jun 27, 2012
Observation date: Jun 24, 2012
Submitted by: Appy-Brown
Region: Grand Isle County, Vermont, United States
Verified by: H.D. McGuinness
Verified date: Jun 26, 2012
Observation date: Jun 23, 2012
Submitted by: Roger Kennedy
Region: Ontario, Canada
Verified by: anthony.thomas
Verified date: Jun 25, 2012
Observation date: May 28, 2012
Submitted by: scrowe
Region: Fulton County, New York, United States
Verified by: H.D. McGuinness
Verified date: Jun 24, 2012
Observation date: Jun 09, 2012
Submitted by: rmprit
Region: Jackson County, Missouri, United States
Verified by: Phillip E. Koenig
Verified date: Jun 24, 2012
Observation date: Jun 04, 2011
Submitted by: Ron Murdock
Region: Cayuga County, New York, United States
Verified by: H.D. McGuinness
Verified date: Jun 21, 2012
Observation date: Jun 20, 2012
Submitted by: MaineGal
Region: Waldo County, Maine, United States
Verified by: anthony.thomas
Verified date: Jun 20, 2012
Observation date: Jun 11, 2012
Submitted by: Kent McFarland (Marie Cole)
Region: Windsor County, Vermont, United States
Verified by: Kent McFarland
Verified date: Jun 18, 2012
Observation date: Jun 16, 2012
Submitted by: roto52
Region: Ontario, Canada
Verified by: anthony.thomas
Verified date: Jun 18, 2012
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