Attributes of Pachysphinx modesta

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.
Taxonomy Notes:

Images of Pachysphinx modesta

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Pachysphinx modesta - Pachysphinx_modesta_Priestley640.jpg

Pachysphinx modesta - Pachysphinx_modesta_Priestley640.jpg
Pachysphinx modesta - pachmode.jpg

Pachysphinx modesta - pachmode.jpg
Pachysphinx modesta - pacmodes.jpg

Pachysphinx modesta - pacmodes.jpg

The map below displays all BAMONA data for this species and has three different data layers:
1. All records (yellow dots)   2. Recently verified records (orange dots)*   3. US county records (purple)

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*The orange dots on the map provide access to information about the 400 most recently verified sightings of this species. Sometimes, there are several records at the same location. Use the table view to access these records.

By default, the fifty most recently verified sightings are below. Sort by Observation Date to see the most recent sightings, or filter the sightings by region to get a regional list.

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Observation Date Submitter Region Verified Datesort icon
July 21, 2016 iangardner Lebanon County, Pennsylvania, United States July 28, 2016 Details
July 22, 2016 Joe Bartok Ontario, Canada July 22, 2016 Details
June 28, 2016 uwtriguy Dane County, Wisconsin, United States July 13, 2016 Details
June 26, 2016 Paul F. J. Eagles Ontario, Canada July 07, 2016 Details
June 22, 2016 hdad58 Coos County, New Hampshire, United States June 23, 2016 Details
June 17, 2016 Mr Bill E-B Ontario, Canada June 19, 2016 Details
June 23, 2014 devjohnstone Nova Scotia, Canada June 09, 2016 Details
June 06, 2016 Dispatcher7 Rensselaer County, New York, United States June 06, 2016 Details
June 03, 2016 Jarchibold Saratoga County, New York, United States June 04, 2016 Details
May 31, 2016 edenny Hampshire County, Massachusetts, United States May 31, 2016 Details
February 27, 2016 jeffmci9 Texas, Travis County, United States March 10, 2016 Details
July 17, 2015 CathK Washington County, Maine, United States December 17, 2015 Details
June 04, 2015 Ilona L. Dane County, Wisconsin, United States November 18, 2015 Details
June 14, 2015 ColoradEO Vilas County, Wisconsin, United States October 29, 2015 Details
July 25, 2015 Quaker state mothing Coos County, New Hampshire, United States October 24, 2015 Details
July 22, 2014 doublej McKean County, Pennsylvania, United States October 12, 2015 Details
June 08, 2015 Tomanion Hartford County, Connecticut, United States October 11, 2015 Details
September 06, 2015 elindsaybrothers46 Osage County, Oklahoma, United States September 15, 2015 Details
July 01, 2013 K Marcus Ontario, Canada August 27, 2015 Details
August 05, 2015 bowski13 Valley County, Idaho, United States August 25, 2015 Details
July 18, 2015 brennaalus Huron County, Michigan, United States August 04, 2015 Details
June 30, 2015 beth_bastarache@hotmail.com New Brunswick, Canada July 23, 2015 Details
July 07, 2015 BBG Somerset County, Maine, United States July 23, 2015 Details
July 21, 2015 richard macleod Nova Scotia, Canada July 23, 2015 Details
July 18, 2015 turtlemoon Morrison County, Minnesota, United States July 21, 2015 Details
July 17, 2015 Aboover Knox County, Maine, United States July 18, 2015 Details
July 17, 2015 Payum.h Anne Arundel County, Maryland, United States July 17, 2015 Details
July 11, 2015 BeaLaporte Ontario, Canada July 14, 2015 Details
July 08, 2015 rbuist Manitoba, Canada July 13, 2015 Details
July 01, 2015 ChkDigit Saskatchewan, Canada July 06, 2015 Details
June 16, 2015 Latenight Cameron County, Pennsylvania, United States June 24, 2015 Details
June 08, 2015 James Barron Yellowstone County, Montana, United States June 12, 2015 Details
May 21, 2015 Smilodon77 La Plata County, Colorado, United States June 08, 2015 Details
May 26, 2015 LinRandolph Ashtabula County, Ohio, United States June 04, 2015 Details
June 04, 2014 wayne13114 Oswego County, New York, United States February 02, 2015 Details
June 14, 1990 ColoradEO Vilas County, Wisconsin, United States January 04, 2015 Details
June 06, 2014 CathK Albany County, New York, United States December 10, 2014 Details
June 08, 2014 Sue Gregoire Schuyler County, New York, United States December 09, 2014 Details
August 02, 2014 michaeloberg Benton County, Missouri, United States August 24, 2014 Details
June 11, 2013 davidwright (Link Davis) New York, United States August 13, 2014 Details
June 29, 2014 nedeweese Lake County, Minnesota, United States August 05, 2014 Details
July 17, 2014 1mmm76 Black Hawk County, Iowa, United States July 31, 2014 Details
July 24, 2014 WldWi11y Spokane County, Washington, United States July 29, 2014 Details
July 22, 2014 joeverica Centre County, Pennsylvania, United States July 28, 2014 Details
July 11, 2014 cfosp1 Bayfield County, Wisconsin, United States July 25, 2014 Details
June 22, 2014 ShawnLane Brunswick County, North Carolina, United States July 21, 2014 Details
July 13, 2014 SarahHong Jefferson County, Colorado, United States July 15, 2014 Details
July 01, 2014 cynthia bourg Cloud County, Kansas, United States July 14, 2014 Details
July 08, 2014 Fullpawtential Arapahoe County, Colorado, United States July 10, 2014 Details
June 28, 2014 blubungalo St Louis County, Minnesota, United States July 09, 2014 Details