A Butternut Woollyworm larva on Black Walnut in Howard Co., Maryland (9/10/2013). Richard states, "The Butternut Woolyworm (Eriocampa juglandis) is a sawfly (a wasp with caterpillar-like lava). The "naked larva" with the flock removed is pictured in the upper right hand corner."
Photo by
Richard Orr
MBP List
Butternut Woollyworm larvae in Howard Co., Maryland (9/10/2013).
Photo by
Bonnie Ott
MBP List
A Butternut Woollyworm in Baltimore Co., Maryland (8/26/2018).
A Butternut Woollyworm in Howard Co., Maryland (8/10/2015). Richard notes, "The Butternut Woolyworm covers itself with long flocks of soft white material to protect it from parasitoids. The top of the photograph shows the Butternut Woolyworm after I cleaned off most of its white covering."
A Butternut Woollyworm in Frederick Co., Maryland (7/9/2016).
A Butternut Woollyworm in Baltimore Co., Maryland (9/3/2019).
A Butternut Woollyworm in Montgomery Co., Maryland (9/9/2014).
A Butternut Woollyworm in Baltimore Co., Maryland (8/8/2016).
Butternut Woollyworm in Frederick Co., Maryland (9/3/2017). (c) Mark Etheridge, some rights reserved (CC BY-NC).
Butternut Woollyworm in Worcester Co., Maryland (7/3/2017).
Butternut Woollyworm in Anne Arundel Co., Maryland (7/26/2020). (c) Matthew Beziat, some rights reserved (CC BY-NC).
Butternut Woollyworm in Harford Co., Maryland (9/1/2019). (c) apistopanchax, some rights reserved (CC BY-NC).
Butternut Woollyworm in Anne Arundel Co., Maryland (8/11/2022). (c) Ken Clark, some rights reserved (CC BY).
Butternut Woollyworms in Queen Anne's Co., Maryland (7/11/2015).
Map Snapshot
34 Records
Relationships
The Butternut Woollyworm uses Black Walnut and Butternut as host plants. It is reported that hickories are also sometimes used as host plants.
Seasonality Snapshot
Use of media featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.
A Butternut Woollyworm larva on Black Walnut in Howard Co., Maryland (9/10/2013). Richard states, "The Butternut Woolyworm (Eriocampa juglandis) is a sawfly (a wasp with caterpillar-like lava). The "naked larva" with the flock removed is pictured in the upper right hand corner."
Media by
Richard Orr.
Butternut Woollyworm larvae in Howard Co., Maryland (9/10/2013).
Media by
Bonnie Ott.
A Butternut Woollyworm in Baltimore Co., Maryland (8/26/2018).
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Media by
Ashley Bradford.
A Butternut Woollyworm in Howard Co., Maryland (8/10/2015). Richard notes, "The Butternut Woolyworm covers itself with long flocks of soft white material to protect it from parasitoids. The top of the photograph shows the Butternut Woolyworm after I cleaned off most of its white covering."
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Media by
Richard Orr.
A Butternut Woollyworm in Frederick Co., Maryland (7/9/2016).
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Media by
Bob Cammarata.
A Butternut Woollyworm in Baltimore Co., Maryland (9/3/2019).
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Media by
Sue Muller.
A Butternut Woollyworm in Montgomery Co., Maryland (9/9/2014).
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Media by
Bonnie Bell.
A Butternut Woollyworm in Baltimore Co., Maryland (8/8/2016).
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Media by
Rose Anderson.
Butternut Woollyworm in Frederick Co., Maryland (9/3/2017). (c) Mark Etheridge, some rights reserved (CC BY-NC).
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Media by
Mark Etheridge.
Butternut Woollyworm in Worcester Co., Maryland (7/3/2017).
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Media by
Wayne Longbottom.
Butternut Woollyworm in Anne Arundel Co., Maryland (7/26/2020). (c) Matthew Beziat, some rights reserved (CC BY-NC).
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Media by
Matthew Beziat.
Butternut Woollyworm in Harford Co., Maryland (9/1/2019). (c) apistopanchax, some rights reserved (CC BY-NC).
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Media by
Josh Emm.
Butternut Woollyworm in Anne Arundel Co., Maryland (8/11/2022). (c) Ken Clark, some rights reserved (CC BY).
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Media by
Ken Clark via iNaturalist.
Butternut Woollyworms in Queen Anne's Co., Maryland (7/11/2015).
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Media by
Amanda Spears.