Two-lined Chestnut Borer Agrilus bilineatus (Weber, 1801)    
Kingdom Animalia   >   Phylum Arthropoda   >   Class Insecta   >   Order Coleoptera   >   Family Buprestidae   >   Genus Agrilus   

Relationships:

Per BugGuide: "Larvae are a major mortality agent of stressed oaks (Quercus), particularly red oaks (Muzika et al. 2000); adults feed on chestnut blight spores (Cryphonectria parasitica)." Also: "Substantial injury and mortality of American chestnut caused by A. bilineatus was noted as early as 1891; A. bilineatus was purportedly responsible for the death of 75% of the chestnut trees in Fairfax County, VA in 1893. Although largely ignored in the intervening decades, the beetle has been documented as a cause of oak mortality. (Muzika et al. 2000)" (More at BugGuide).

There are 7 records in the project database.

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A Two-lined Chestnut Borer in Baltimore Co., Maryland (6/24/2017). Determined by V. Belov/BugGuide. Photo by Emily Stanley. (MBP list)

A Two-lined Chestnut Borer collected in Harford Co., Maryland (8/27/2018). Photo by Josh Emm. (MBP list)

A Two-lined Chestnut Borer collected in Harford Co., Maryland (8/27/2018). Photo by Josh Emm. (MBP list)

Two-lined Chestnut Borer in Frederick Co., Maryland (7/3/2021). (c) Mark Etheridge, some rights reserved (CC BY-NC). Photo by Mark Etheridge. (MBP list)

A Two-lined Chestnut Borer with an Emerald Ash Borer for size comparison in Harford Co., Maryland (8/27/2018). Photo by Josh Emm. (MBP list)

A Two-lined Chestnut Borer found at Fort Smallwood Park in Anne Arundel Co., Maryland (6/1/2019). First MBP record for Anne Arundel Co. found on the beach among a surprising density of Emerald Ash Borers. Photo by Bill Hubick. (MBP list)

Two-lined Chestnut Borer in Howard Co., Maryland (6/5/2021). (c) smuller, some rights reserved (CC BY-NC). Photo by Sue Muller. (MBP list)


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