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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 313 - 336 of 795 verified sightings
Observation date: Jun 28, 2014
Submitted by: digbysherrie
Region: Nova Scotia, Canada
Verified by: anthony.thomas
Verified date: Jun 29, 2014
Observation date: Jun 19, 2014
Submitted by: whispers2u
Region: Alberta, Canada
Verified by: davidwdroppers
Verified date: Jun 29, 2014
Observation date: Jun 28, 2014
Submitted by: Sue97
Region: Nova Scotia, Canada
Verified by: anthony.thomas
Verified date: Jun 29, 2014
Observation date: Jun 02, 2014
Submitted by: joebr77
Region: Fairfield County, Connecticut, United States
Verified by: Ryan St Laurent
Verified date: Jun 27, 2014
Observation date: Jun 24, 2014
Submitted by: slurik
Region: Prince Edward Island, Canada
Verified by: anthony.thomas
Verified date: Jun 26, 2014
Observation date: Jun 25, 2014
Submitted by: TrudyField
Region: Nova Scotia, Canada
Verified by: anthony.thomas
Verified date: Jun 26, 2014
Observation date: Jun 17, 2014
Submitted by: Frederick Gralenski
Region: Washington County, Maine, United States
Verified by: anthony.thomas
Verified date: Jun 22, 2014
Observation date: Jun 22, 2014
Submitted by: atlanticpastor
Region: New Brunswick, Canada
Verified by: anthony.thomas
Verified date: Jun 22, 2014
Observation date: Jun 20, 2014
Submitted by: Pat Brown
Region: Ontario, Canada
Verified by: curtis.lehman
Verified date: Jun 22, 2014
Observation date: Jun 17, 2014
Submitted by: Marianne Odell
Region: Knox (mainland only) County, Maine, United States
Verified by: anthony.thomas
Verified date: Jun 21, 2014
Observation date: Jun 10, 2014
Submitted by: Aboover
Region: Knox County, Maine, United States
Verified by: anthony.thomas
Verified date: Jun 15, 2014
Observation date: Jun 07, 2014
Submitted by: Jody
Region: Ontario, Canada
Verified by: curtis.lehman
Verified date: Jun 08, 2014
Observation date: May 06, 2014
Submitted by: saferite
Region: Sedgwick County, Kansas, United States
Verified by: azukoff
Verified date: May 07, 2014
Observation date: Jul 03, 2013
Submitted by: mayomi
Region: Weber County, Utah, United States
Verified by: Robert Martin
Verified date: Feb 20, 2014
Observation date: Jul 18, 2013
Submitted by: Usei
Region: El Paso County, Colorado, United States
Verified by: azukoff
Verified date: Feb 07, 2014
Observation date: Jul 10, 2013
Submitted by: briannathompson1
Region: Arapahoe County, Colorado, United States
Verified by: azukoff
Verified date: Feb 06, 2014
Observation date: Jul 10, 2013
Submitted by: mrcast
Region: Jefferson County, Colorado, United States
Verified by: azukoff
Verified date: Feb 06, 2014
Observation date: Jul 08, 2013
Submitted by: mickie7811
Region: Jefferson County, Colorado, United States
Verified by: azukoff
Verified date: Feb 06, 2014
Observation date: Jun 13, 2013
Submitted by: ericrank
Region: Larimer County, Colorado, United States
Verified by: azukoff
Verified date: Feb 06, 2014
Observation date: May 31, 2012
Submitted by: mothexmachina
Region: Dodge County, Nebraska, United States
Verified by: Noel Mac Neil
Verified date: Dec 31, 2013
Observation date: Jul 07, 2013
Submitted by: Jim Eckert
Region: Berks County, Pennsylvania, United States
Verified by: curtis.lehman
Verified date: Dec 17, 2013
Observation date: Jul 18, 2013
Submitted by: Ilona L.
Region: Dane County, Wisconsin, United States
Verified by: Tom Middagh
Verified date: Nov 05, 2013
Observation date: Jul 14, 2013
Submitted by: Latenight
Region: Cameron County, Pennsylvania, United States
Verified by: curtis.lehman
Verified date: Oct 17, 2013
Observation date: Jun 26, 2013
Submitted by: pattiep9
Region: Oneida County, Wisconsin, United States
Verified by: Tom Middagh
Verified date: Sep 25, 2013
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