A Carpenterworm Moth in Calvert Co., Maryland (6/17/2017).
Carpenterworm Moth in Prince George's Co., Maryland (7/9/2020). (c) Hans Holbrook, some rights reserved (CC BY-NC ).
A Carpenterworm Moth in Worcester Co., Maryland (6/4/2013).
A Carpenterworm Moth in Anne Arundel Co., Maryland (6/6/2015).
A Carpenterworm Moth in Baltimore Co., Maryland (7/4/2014).
A Carpenterworm Moth in Prince George's Co., Maryland (5/31/2014).
A Carpenterworm Moth in Carroll Co., Maryland (6/13/2011).
A Carpenterworm Moth in Harford Co., Maryland (6/28/2020).
A Carpenterworm Moth in Cecil Co., Maryland (6/21/2023).
Carpenterworm Moth in Anne Arundel Co., Maryland (6/2/2017). (c) Timothy Reichard, all rights reserved.
Carpenterworm Moth in Washington Co., Maryland (7/10/2021). (c) Mark Etheridge, some rights reserved (CC BY-NC ).
A Carpenterworm Moth in Worcester Co., Maryland (6/13/2013).
Carpenterworm Moth in Anne Arundel Co., Maryland (7/5/2020). (c) Timothy Reichard, all rights reserved.
A Carpenterworm Moth in Baltimore Co., Maryland (6/18/2020).
Carpenterworm Moth in Frederick Co., Maryland (6/10/2023). (c) James Reilly, some rights reserved (CC BY-NC ).
Carpenterworm Moth in Allegany Co., Maryland (6/22/2024). (c) Jim Brighton, some rights reserved (CC BY-NC ).
A Carpenterworm Moth in Cecil Co., Maryland (6/11/2015). Verified by Roger Downer/BAMONA.
A male Carpenterworm Moth in Kent Co., Maryland (5/31/2022).
Carpenterworm Moth in Anne Arundel Co., Maryland (7/6/2020). (c) Timothy Reichard, all rights reserved.
A Carpenterworm Moth in Harford Co., Maryland (7/4/2021).
A Carpenterworm Moth in Worcester Co., Maryland (6/4/2013).
Carpenterworm Moth in Anne Arundel Co., Maryland (5/17/2019). (c) Timothy Reichard, all rights reserved.
A Carpenterworm Moth in Harford Co., Maryland (6/30/2020).
A Carpenterworm Moth in Caroline Co., Maryland (7/14/2020).
A Carpenterworm Moth in Cecil Co., Maryland (6/27/2021).
Carpenterworm Moth in Washington Co., Maryland (6/30/2023). (c) Mark Etheridge, some rights reserved (CC BY-NC ).
A Carpenterworm Moth in Queen Anne's Co., Maryland (5/25/2016). Determined by Jason D. Roberts/BugGuide.
Carpenterworm Moth in Anne Arundel Co., Maryland (7/5/2020). (c) Timothy Reichard, all rights reserved.
A Carpenterworm Moth in Worcester Co., Maryland (6/2/2013).
A Carpenterworm Moth in Washington Co., Maryland (7/4/2019).
A Carpenterworm Moth in Queen Anne's Co., Maryland (6/28/2023).
Carpenterworm Moth in Washington Co., Maryland (7/1/2022). (c) Mark Etheridge, some rights reserved (CC BY-NC ).
A Carpenterworm Moth in Caroline Co., Maryland (5/25/2015).
A Carpenterworm Moth in Howard Co., Maryland (6/26/2002).
A Carpenterworm Moth in Dorchester Co., Maryland (5/27/2015).
Carpenterworm Moth in Howard Co., Maryland (5/16/2017). (c) Timothy Reichard, all rights reserved.
A Carpenterworm Moth in Calvert Co., Maryland (6/20/2006).
A Carpenterworm Moth in Calvert Co., Maryland (6/20/2006).
A Carpenterworm Moth in Prince George's Co., Maryland (5/23/2006).
Carpenterworm Moth pupa in Prince George's Co., Maryland (6/19/2015). (c) Michael Ellis, some rights reserved (CC BY ).
Carpenterworm Moth in Allegany Co., Maryland (6/17/2018). (c) Timothy Reichard, all rights reserved.
Carpenterworm Moth in Allegany Co., Maryland (6/17/2018). (c) Timothy Reichard, all rights reserved.
Carpenterworm Moth in Dorchester Co., Maryland (6/2/2023). (c) Jim Brighton, some rights reserved (CC BY-NC ).
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Status Widespread but uncommon throughout U.S.
Relationships Larvae bore into the wood of deciduous trees such as oak, locust, ash, chestnut, poplar, and willow (Beadle, 2012). Other host plants include Eastern Baccharis and Black Locust (Database of the World's Lepidopteran Hostplants).
Use of media featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.
A Carpenterworm Moth in Worcester Co., Maryland (6/4/2013).
Media by
Mike Burchett .
A Carpenterworm Moth in Queen Anne's Co., Maryland (5/25/2016). Determined by Jason D. Roberts/BugGuide.
View Record Details
Media by
Lori Byrne .
Species of moth
Prionoxystus robiniae
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Cossidae
Genus:
Prionoxystus
Species:
P. robiniae
Binomial name
Prionoxystus robiniae (Peck, 1818)
Synonyms
Cossus robiniae Peck, 1818
Xystus robiniae
Cossus crepera Harris, 1834
Cossus plagiatus Walker, 1856
Xyleutes querciperda Packard, 1864
Xyleutes crepera Packard, 1864
Cossus reticulatus Lintner, 1878
Prionoxystus quercus Ehrmann, 1893
Cossus zabolicus Strecker, 1898
Prionxystus robinae Barnes & McDunnough, 1911
Prionoxystus mixtus Barnes & Benjamin, 1923
Prionoxystus subnigrus Barnes & Benjamin, 1923
Prionoxystus flavotinctus Barnes & Benjamin, 1923
Prionoxystus robiniae , the carpenterworm moth or locust borer , is a moth of the family Cossidae .[ 1] It was first described by Peck in 1818 and it is found in southern Canada and most of the United States.
Female (left) and male (right)
Caterpillar
The wingspan is 43–85 mm (1.7–3.3 in). Adults are on wing from May to July depending on the location.
The larvae feed on locust , oak , chestnut , poplar , willow , maple and ash . The species is considered a pest, because the tunnels the larvae create decrease the value of hardwood lumber.