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:
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There are also three base layers: 1. Satellite    2. Normal   3. Hybrid

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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
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
July 07, 2014 Jerri Lee Foster Douglas County, Colorado, United States July 08, 2014 Details
June 29, 2014 ivyclinger Douglas County, Colorado, United States June 30, 2014 Details
June 19, 2014 whispers2u Alberta, Canada June 29, 2014 Details
June 28, 2014 digbysherrie Nova Scotia, Canada June 29, 2014 Details
June 28, 2014 Sue97 Nova Scotia, Canada June 29, 2014 Details
June 02, 2014 joebr77 Fairfield County, Connecticut, United States June 27, 2014 Details
June 24, 2014 slurik Prince Edward Island, Canada June 26, 2014 Details
June 25, 2014 TrudyField Nova Scotia, Canada June 26, 2014 Details
June 20, 2014 Pat Brown Ontario, Canada June 22, 2014 Details
June 17, 2014 Frederick Gralenski Washington County, Maine, United States June 22, 2014 Details
June 22, 2014 atlanticpastor New Brunswick, Canada June 22, 2014 Details
June 17, 2014 Marianne Odell Knox (mainland only) County, Maine, United States June 21, 2014 Details
June 10, 2014 Aboover Knox County, Maine, United States June 15, 2014 Details
June 07, 2014 Jody Ontario, Canada June 08, 2014 Details
May 06, 2014 saferite Sedgwick County, Kansas, United States May 07, 2014 Details
July 03, 2013 mayomi Weber County, Utah, United States February 20, 2014 Details
July 18, 2013 Usei El Paso County, Colorado, United States February 07, 2014 Details
June 13, 2013 ericrank Larimer County, Colorado, United States February 06, 2014 Details
July 08, 2013 mickie7811 Jefferson County, Colorado, United States February 06, 2014 Details
July 10, 2013 mrcast Jefferson County, Colorado, United States February 06, 2014 Details
July 10, 2013 briannathompson1 Arapahoe County, Colorado, United States February 06, 2014 Details
May 31, 2012 mothexmachina Dodge County, Nebraska, United States December 31, 2013 Details
July 07, 2013 Jim Eckert Berks County, Pennsylvania, United States December 17, 2013 Details
July 18, 2013 Ilona L. Dane County, Wisconsin, United States November 05, 2013 Details
July 14, 2013 Latenight Cameron County, Pennsylvania, United States October 17, 2013 Details
June 26, 2013 pattiep9 Oneida County, Wisconsin, United States September 25, 2013 Details
August 12, 2012 slik50 Alberta, Canada September 16, 2013 Details
August 28, 2013 peteraharrisdds Kent County, Michigan, United States September 14, 2013 Details
August 26, 2013 JoleneFinnie Ontario, Canada September 02, 2013 Details
July 30, 2013 m5vandersloo Crawford County, Michigan, United States August 26, 2013 Details
June 26, 2013 Brett Budach Ontario, Canada August 19, 2013 Details
July 07, 2013 hbjul Deschutes County, Oregon, United States August 18, 2013 Details
August 07, 2013 jkerickson Grant County, Washington, United States August 14, 2013 Details
July 28, 2013 MonicaSavage Ontario, Canada August 13, 2013 Details
July 16, 2013 kr1f333 Manistee County, Michigan, United States August 09, 2013 Details
July 11, 2013 bkruse1950 Mason County, Michigan, United States July 30, 2013 Details
July 15, 2013 Katherine Stahl Dunn County, Wisconsin, United States July 30, 2013 Details
July 06, 2013 GoosebNat Lake County, Minnesota, United States July 30, 2013 Details
July 25, 2013 Schoobs Wood County, Wisconsin, United States July 30, 2013 Details
July 29, 2013 gwenmartella Ontario, Canada July 30, 2013 Details
July 08, 2013 hroo Washington County, Vermont, United States July 30, 2013 Details
July 15, 2013 Amy Langman Susquehanna County, Pennsylvania, United States July 23, 2013 Details
July 23, 2013 jpapp Mecklenburg County, North Carolina, United States July 23, 2013 Details
July 18, 2013 bdmaxie St Louis County, Minnesota, United States July 21, 2013 Details
July 05, 2013 aarongunnar Florence County, Wisconsin, United States July 19, 2013 Details