A Lesser Maple Spanworm in Pasadena, Maryland (6/5/2013).

View Record Details Photo by Bill Hubick MBP List

A Lesser Maple Spanworm Moth in Kent Co., Maryland (6/6/2014).

View Record Details Photo by Mike Burchett MBP List

A Lesser Maple Spanworm Moth in Harford Co., Maryland (7/2/2019).

View Record Details Photo by Dave Webb MBP List

A Lesser maple Spanworm Moth in Garrett Co., Maryland (7/7/2013).

View Record Details Photo by Matt Tillett MBP List

A Lesser Maple Spanworm Moth in Garrett Co., Maryland (7/11/2014).

View Record Details Photo by Bill Hubick MBP List

A Lesser Maple Spanworm Moth in Worcester Co., Maryland (6/28/2013).

View Record Details Photo by Scott Housten MBP List

A Lesser Maple Spanworm Moth in Howard Co., Maryland (7/18/2015).

View Record Details Photo by Nancy Magnusson MBP List

Lesser Maple Spanworm Moth in Worcester Co., Maryland (6/9/2013).

View Record Details Photo by Scott Housten MBP List

A Lesser Spanworm Moth in Baltimore Co., Maryland (7/14/2013).

View Record Details Photo by Benjamin DeHaven MBP List

A Lesser Maple Spanworm Moth in Worcester Co., Maryland (6/10/2013).

View Record Details Photo by Scott Housten MBP List

A Lesser Maple Spanworm Moth in Anne Arundel Co., Maryland (6/5/2015).

View Record Details Photo by Robert Aguilar, SERC MBP List

A Lesser Maple Spanworm Moth in Harford Co., Maryland (7/14/2017).

View Record Details Photo by Dave Webb MBP List

A male Lesser Maple Spanworm Moth in Caroline Co., Maryland (6/26/2022).

View Record Details Photo by Dave Webb MBP List

A male Lesser Maple Spanworm Moth in Cecil Co., Maryland (6/21/2023).

View Record Details Photo by Dave Webb MBP List

A Lesser Maple Spanworm Moth in Allegany Co., Maryland (6/26/2015). Verified by Roger Downer/BAMONA.

View Record Details Photo by Mark Etheridge MBP List

A Lesser Maple Spanworm Moth in Cecil Co., Maryland (6/12/2017).

View Record Details Photo by Shannon Schade MBP List

A Lesser Maple Spanworm Moth in Harford Co., Maryland (7/6/2021).

View Record Details Photo by Dave Webb MBP List

A Lesser Maple Spanworm Moth in Frederick Co., Maryland (6/11/2016).

View Record Details Photo by Mark Etheridge MBP List

A Lesser Maple Spanworm Moth in Harford Co., Maryland (7/25/2014). Verified by Roger Downer/BAMONA.

View Record Details Photo by Dave Webb MBP List

A female Lesser Maple Spanworm Moth in Garrett Co., Maryland (9/15/2022).

View Record Details Photo by Dave Webb MBP List

Lesser Maple Spanworm Moth in Prince George's Co., Maryland (6/18/2017). (c) Barbara Thurlow, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 201762 - Psn: 66)

Lesser Maple Spanworm Moth in Prince George's Co., Maryland (6/18/2017). (c) Barbara Thurlow, some rights reserved (CC BY-NC).

View Record Details Photo by Barbara Thurlow MBP List

A Lesser Maple Spanworm Moth on South Mountain, Washington Co., Maryland (7/28/2006).

View Record Details Photo by Hans Holbrook MBP List

A Lesser Maple Spanworm Moth in Frederick Co., Maryland (6/23/2015).

View Record Details Photo by Mark Etheridge MBP List

A Lesser Maple Spanworm Moth in St. Mary's Co., Maryland (6/5/2015).

View Record Details Photo by Steve Scholnick MBP List

A Lesser Maple Spanworm Moth in Baltimore Co., Maryland (7/8/2017). Determined by Jim Sogaard/BugGuide.

View Record Details Photo by Richard Crook MBP List

A Lesser Maple Spanworm Moth in Prince George's Co., Maryland (5/24/2010).

View Record Details Photo by Bob Patterson MBP List

A Lesser Maple Spanworm Moth in Calvert Co., Maryland (6/16/2006).

View Record Details Photo by Arlene Ripley MBP List

A Lesser Maple Spanworm Moth in Howard Co., Maryland (5/28/2004).

View Record Details Photo by Larry Line MBP List

A Lesser Maple Spanworm Moth collected in Frederick Co., Maryland (6/16/2001).

View Record Details Photo by Mark Etheridge MBP List

Lesser Maple Spanworm Moth in Dorchester Co., Maryland (6/2/2023). (c) Jim Brighton, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 815682 - Psn: 200)

Lesser Maple Spanworm Moth in Dorchester Co., Maryland (6/2/2023). (c) Jim Brighton, some rights reserved (CC BY-NC).

View Record Details Photo by Jim Brighton MBP List

Map Snapshot

361 Records

GA AL WA FR CL MO HO BA BC HA CE PG AA CV CH SM KE QA CN TA DO WI SO WO

Relationships

Larval host plants: A variety of trees including maple, cherry, and birch.

Seasonality Snapshot

Resources

View at iNaturalist View at Nature Serve Search Google Images Search MBP Facebook posts

View images at BugGuide View in Moth Photographers Group

Use of media featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.

A Lesser Maple Spanworm in Pasadena, Maryland (6/5/2013). View Record Details Media by Bill Hubick.

A Lesser Maple Spanworm Moth in Kent Co., Maryland (6/6/2014). View Record Details Media by Mike Burchett.

A Lesser Maple Spanworm Moth in Harford Co., Maryland (7/2/2019). View Record Details Media by Dave Webb.

A Lesser maple Spanworm Moth in Garrett Co., Maryland (7/7/2013). View Record Details Media by Matt Tillett.

A Lesser Maple Spanworm Moth in Garrett Co., Maryland (7/11/2014). View Record Details Media by Bill Hubick.

A Lesser Maple Spanworm Moth in Worcester Co., Maryland (6/28/2013). View Record Details Media by Scott Housten.

A Lesser Maple Spanworm Moth in Howard Co., Maryland (7/18/2015). View Record Details Media by Nancy Magnusson.

Lesser Maple Spanworm Moth in Worcester Co., Maryland (6/9/2013). View Record Details Media by Scott Housten.

A Lesser Spanworm Moth in Baltimore Co., Maryland (7/14/2013). View Record Details Media by Benjamin DeHaven.

A Lesser Maple Spanworm Moth in Worcester Co., Maryland (6/10/2013). View Record Details Media by Scott Housten.

A Lesser Maple Spanworm Moth in Anne Arundel Co., Maryland (6/5/2015). View Record Details Media by Robert Aguilar, SERC.

A Lesser Maple Spanworm Moth in Harford Co., Maryland (7/14/2017). View Record Details Media by Dave Webb.

A male Lesser Maple Spanworm Moth in Caroline Co., Maryland (6/26/2022). View Record Details Media by Dave Webb.

A male Lesser Maple Spanworm Moth in Cecil Co., Maryland (6/21/2023). View Record Details Media by Dave Webb.

A Lesser Maple Spanworm Moth in Allegany Co., Maryland (6/26/2015). Verified by Roger Downer/BAMONA. View Record Details Media by Mark Etheridge.

A Lesser Maple Spanworm Moth in Cecil Co., Maryland (6/12/2017). View Record Details Media by Shannon Schade.

A Lesser Maple Spanworm Moth in Harford Co., Maryland (7/6/2021). View Record Details Media by Dave Webb.

A Lesser Maple Spanworm Moth in Frederick Co., Maryland (6/11/2016). View Record Details Media by Mark Etheridge.

A Lesser Maple Spanworm Moth in Harford Co., Maryland (7/25/2014). Verified by Roger Downer/BAMONA. View Record Details Media by Dave Webb.

A female Lesser Maple Spanworm Moth in Garrett Co., Maryland (9/15/2022). View Record Details Media by Dave Webb.

Lesser Maple Spanworm Moth in Prince George's Co., Maryland (6/18/2017). (c) Barbara Thurlow, some rights reserved (CC BY-NC). View Record Details Media by Barbara Thurlow.

A Lesser Maple Spanworm Moth on South Mountain, Washington Co., Maryland (7/28/2006). View Record Details Media by Hans Holbrook.

A Lesser Maple Spanworm Moth in Frederick Co., Maryland (6/23/2015). View Record Details Media by Mark Etheridge.

A Lesser Maple Spanworm Moth in St. Mary's Co., Maryland (6/5/2015). View Record Details Media by Steve Scholnick.

A Lesser Maple Spanworm Moth in Baltimore Co., Maryland (7/8/2017). Determined by Jim Sogaard/BugGuide. View Record Details Media by Richard Crook.

A Lesser Maple Spanworm Moth in Prince George's Co., Maryland (5/24/2010). View Record Details Media by Bob Patterson.

A Lesser Maple Spanworm Moth in Calvert Co., Maryland (6/16/2006). View Record Details Media by Arlene Ripley.

A Lesser Maple Spanworm Moth in Howard Co., Maryland (5/28/2004). View Record Details Media by Larry Line.

A Lesser Maple Spanworm Moth collected in Frederick Co., Maryland (6/16/2001). View Record Details Media by Mark Etheridge.

Lesser Maple Spanworm Moth in Dorchester Co., Maryland (6/2/2023). (c) Jim Brighton, some rights reserved (CC BY-NC). View Record Details Media by Jim Brighton.

Source: Wikipedia

Speranza pustularia

Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Geometridae
Genus:	Speranza
Species:	S. pustularia
Binomial name
*Speranza pustularia* (Guenée, 1857)
Synonyms
Stegania pustularia Guenée, 1857 Macaria pustularia (Guenée, 1857) Itame pustularia (Guenée, 1857)

Speranza pustularia, the lesser maple spanworm, is a moth of the family Geometridae. Adults are on wing from May to July in the south and from June to August in the north. There is one generation per year.

Description

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Adults have white wings with wavy orange-yellow lines across both the forewings and hindwings. These lines are often thicker at the top-most edge of the forewing. The wingspan is 18–27 mm.

Range and Habitat

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The lesser maple spanworm is found from Nova Scotia to Florida, west to Mississippi, north to North Dakota and Saskatchewan. They are most common in deciduous and mixed forests.^[1]

Ecology

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The larvae feed on the leaves of maple, especially Acer rubrum. While A. rubrum is their primary food source, they may also feed on Acer saccharum and Acer saccharinum. Some have also been recorded on birch, cherry, poplar, Abies, Tsuga and tamarack.

References

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^ "Species Macaria pustularia - Lesser Maple Spanworm - Hodges#6273". bugguide.net. Retrieved 2023-12-31.