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 457 - 480 of 798 verified sightings
Observation date: May 29, 2011
Submitted by: curtis.lehman (Jeff Pusateri)
Region: Cambria County, Pennsylvania, United States
Verified by: curtis.lehman
Verified date: Jun 03, 2011
Observation date: Jun 01, 2011
Submitted by: dhsmall
Region: Worcester County, Massachusetts, United States
Verified by: rogerdowner
Verified date: Jun 01, 2011
Observation date: May 31, 2011
Submitted by: curtis.lehman (Jonathan Debalko)
Region: Luzerne County, Pennsylvania, United States
Verified by: curtis.lehman
Verified date: Jun 01, 2011
Observation date: May 19, 2011
Submitted by: Cheryl Jennings
Region: Jefferson County, West Virginia, United States
Verified by: curtis.lehman
Verified date: May 20, 2011
Observation date: Jul 11, 2009
Submitted by: davidwdroppers (David Droppers)
Region: Chelan County, Washington, United States
Verified by: davidwdroppers (David Droppers)
Verified date: May 01, 2011
Observation date: Jun 23, 2003
Submitted by: Jay Sturner
Region: Lake County, Indiana, United States
Verified by: rogerdowner
Verified date: Apr 24, 2011
Observation date: Apr 19, 2011
Submitted by: vwoodlock
Region: Wayne County, North Carolina, United States
Verified by: rogerdowner
Verified date: Apr 20, 2011
Observation date: Apr 19, 2011
Submitted by: vwoodlock
Region: Wayne County, North Carolina, United States
Verified by: rogerdowner
Verified date: Apr 19, 2011
Observation date: Mar 26, 2011
Submitted by: MissJulie10
Region: Bryan County, Oklahoma, United States
Verified by: kmortensen
Verified date: Mar 28, 2011
Observation date: Jul 11, 2010
Submitted by: Mike Hofmann
Region: Summit County, Utah, United States
Verified by: Ranger Steve Mueller
Verified date: Feb 27, 2011
Observation date: Jun 15, 2007
Submitted by: dave priestley (David I. Priestley)
Region: Ontario, Canada
Verified by: dave priestley (David Priestley)
Verified date: Dec 31, 2010
Observation date: Jun 11, 2007
Submitted by: legacy.reporter (Jerry McWilliams)
Region: Erie County, Pennsylvania, United States
Verified by: curtis.lehman (Curt Lehman)
Verified date: Dec 31, 2010
Observation date: unknown
Submitted by: BAMONA
Region:
Verified by: BAMONA
Verified date: Sep 06, 2010
Observation date: unknown
Submitted by: BAMONA
Region:
Verified by: BAMONA
Verified date: Sep 06, 2010
Observation date: unknown
Submitted by: dave priestley (David Priestley)
Region: Ontario, Canada
Verified by: BAMONA
Verified date: Sep 06, 2010
Observation date: Jul 20, 2007
Submitted by: legacy.reporter (Chuck Tague)
Region: Fayette County, Pennsylvania, United States
Verified by: curtis.lehman (Curt Lehman)
Verified date: Aug 03, 2010
Observation date: Jun 15, 2007
Submitted by: legacy.reporter (Wedge Watkins)
Region: Boone County, Missouri, United States
Verified by: legacy.verifier (Wedge Watkins)
Verified date: Jan 05, 2010
Observation date: Jul 26, 2009
Submitted by: legacy.reporter (Cory Cross)
Region: New Madrid County, Missouri, United States
Verified by: legacy.verifier (Phil Koenig)
Verified date: Oct 16, 2009
Observation date: Jul 16, 2009
Submitted by: legacy.reporter (Aaron Mbogho)
Region: New Madrid County, Missouri, United States
Verified by: legacy.verifier (Kent Fothergill, submitted by Phil Koenig)
Verified date: Oct 16, 2009
Observation date: Jul 02, 2009
Submitted by: legacy.reporter (Steve Stiert)
Region: Ulster County, New York, United States
Verified by: H.D. McGuinness (HD McGuinness)
Verified date: Oct 13, 2009
Observation date: May 16, 2009
Submitted by: davidwdroppers (David Droppers)
Region: Chelan County, Washington, United States
Verified by: davidwdroppers (David Droppers)
Verified date: Aug 21, 2009
Observation date: Jul 08, 2009
Submitted by: legacy.reporter (Robin Bickmore)
Region: Bonneville County, Idaho, United States
Verified by: paulopler (Paul Opler)
Verified date: Aug 10, 2009
Observation date: Jul 07, 2008
Submitted by: legacy.reporter (Eric Selin)
Region: Hamilton County, New York, United States
Verified by: H.D. McGuinness (HDMcGuinness)
Verified date: Apr 24, 2009
Observation date: Jan 01, 1972
Submitted by: legacy.reporter (Reickard, Mark)
Region: Caldwell County, Missouri, United States
Verified by: legacy.verifier (Phillip Koenig; Heitzman, J.R. 1972)
Verified date: Mar 11, 2009
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