A <em>Lacon discoideus</em> in Carroll Co., Maryland (4/7/2019). Determined by Blaine Mathison/BugGuide. (Photo ID: 139447 - Psn: 10)

A Lacon discoideus in Carroll Co., Maryland (4/7/2019). Determined by Blaine Mathison/BugGuide.

View Record Details Photo by Peter Coffey MBP List

A <em>Lacon discoideus</em> in Carroll Co., Maryland (4/7/2019). Determined by Blaine Mathison/BugGuide. (Photo ID: 139448 - Psn: 10)

A Lacon discoideus in Carroll Co., Maryland (4/7/2019). Determined by Blaine Mathison/BugGuide.

View Record Details Photo by Peter Coffey MBP List

A <em>Lacon discoideus</em> in Carroll Co., Maryland (4/7/2019). Determined by Blaine Mathison/BugGuide. (Photo ID: 139446 - Psn: 12)

A Lacon discoideus in Carroll Co., Maryland (4/7/2019). Determined by Blaine Mathison/BugGuide.

View Record Details Photo by Peter Coffey MBP List

A <em>Lacon discoideus</em> in Washington Co., Maryland (5/24/2019). (Photo ID: 140231 - Psn: 15)

A Lacon discoideus in Washington Co., Maryland (5/24/2019).

View Record Details Photo by Mark Etheridge MBP List

A <em>Lacon discoideus</em> in Anne Arundel Co., Maryland (3/24/2019). Verified by Bruce Tilden/BugGuide. (Photo ID: 136109 - Psn: 20)

A Lacon discoideus in Anne Arundel Co., Maryland (3/24/2019). Verified by Bruce Tilden/BugGuide.

View Record Details Photo by Judy Gallagher MBP List

A <em>Lacon discoideus</em> in Harford Co., Maryland (5/8/2020). (Photo ID: 165147 - Psn: 20)

A Lacon discoideus in Harford Co., Maryland (5/8/2020).

View Record Details Photo by Dave Webb MBP List

A <em>Lacon discoideus</em> in Harford Co., Maryland (1/5/2022). (Photo ID: 506354 - Psn: 22)

A Lacon discoideus in Harford Co., Maryland (1/5/2022).

View Record Details Photo by Dave Webb MBP List

A <em>Lacon discoideus</em> in Frederick Co., Maryland (5/27/2018). Determined by Blaine Mathison/BugGuide. (Photo ID: 113655 - Psn: 25)

A Lacon discoideus in Frederick Co., Maryland (5/27/2018). Determined by Blaine Mathison/BugGuide.

View Record Details Photo by Mark Etheridge MBP List

A <em>Lacon discoideus</em> in Frederick Co., Maryland (5/27/2018). Determined by Blaine Mathison/BugGuide. (Photo ID: 113654 - Psn: 26)

A Lacon discoideus in Frederick Co., Maryland (5/27/2018). Determined by Blaine Mathison/BugGuide.

View Record Details Photo by Mark Etheridge MBP List

A <em>Lacon discoideus</em> in Baltimore Co., Maryland (1/20/2021). (Photo ID: 331382 - Psn: 32)

A Lacon discoideus in Baltimore Co., Maryland (1/20/2021).

View Record Details Photo by Dave Webb MBP List

A <em>Lacon discoideus</em> in Harford Co., Maryland (3/27/2021). (Photo ID: 356844 - Psn: 32)

A Lacon discoideus in Harford Co., Maryland (3/27/2021).

View Record Details Photo by Dave Webb MBP List

A <em>Lacon discoideus</em> in Baltimore Co., Maryland (5/28/2017). Determined by Blaine Mathison/BugGuide. (Photo ID: 77584 - Psn: 34)

A Lacon discoideus in Baltimore Co., Maryland (5/28/2017). Determined by Blaine Mathison/BugGuide.

View Record Details Photo by Emily Stanley MBP List

A <em>Lacon discoideus</em> in St. Mary's Co., Maryland (5/29/2020). Verified by Blaine Mathison/BugGuide. (Photo ID: 166995 - Psn: 35)

A Lacon discoideus in St. Mary's Co., Maryland (5/29/2020). Verified by Blaine Mathison/BugGuide.

View Record Details Photo by Tyler Bell MBP List

A <em>Lacon discoideus</em> in Frederick Co., Maryland (6/12/2016). Determined by Blaine Mathison/BugGuide. (Photo ID: 49167 - Psn: 40)

A Lacon discoideus in Frederick Co., Maryland (6/12/2016). Determined by Blaine Mathison/BugGuide.

View Record Details Photo by Mark Etheridge MBP List

<em>Lacon discoideus</em> in Anne Arundel Co., Maryland (3/24/2019). (c) Katja Schulz, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 255466 - Psn: 45)

Lacon discoideus in Anne Arundel Co., Maryland (3/24/2019). (c) Katja Schulz, some rights reserved (CC BY).

View Record Details Photo by Katja Schulz via iNaturalist MBP List

<em>Lacon discoideus</em> in Anne Arundel Co., Maryland (6/25/2021). (c) Timothy Reichard, all rights reserved. (Photo ID: 407356 - Psn: 45)

View Record Details Photo by Timothy Reichard MBP List

<em>Lacon discoideus</em> in Montgomery Co., Maryland (5/10/2022). (c) David, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc-sa/4.0/'>CC BY-NC-SA</a>). (Photo ID: 567484 - Psn: 48)

Lacon discoideus in Montgomery Co., Maryland (5/10/2022). (c) David, some rights reserved (CC BY-NC-SA).

View Record Details Photo by David via iNaturalist MBP List

<em>Lacon discoideus</em> in Anne Arundel Co., Maryland (3/24/2019). (c) Judy Gallagher, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 255448 - Psn: 52)

Lacon discoideus in Anne Arundel Co., Maryland (3/24/2019). (c) Judy Gallagher, some rights reserved (CC BY).

View Record Details Photo by Judy Gallagher MBP List

Lacon discoideus in Anne Arundel Co., Maryland (3/24/2019). (c) Katja Schulz, some rights reserved (CC BY).

View Record Details Photo by Katja Schulz via iNaturalist MBP List

<em>Lacon discoideus</em> in Carroll Co., Maryland (Date obscured). (c) bugologist2, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1226182 - Psn: 55)

Lacon discoideus in Carroll Co., Maryland (Date obscured). (c) bugologist2, some rights reserved (CC BY-NC).

View Record Details Photo by bugologist2 via iNaturalist MBP List

<em>Lacon discoideus</em> in Carroll Co., Maryland (7/20/2020). (c) tomfeild, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 205977 - Psn: 68)

Lacon discoideus in Carroll Co., Maryland (7/20/2020). (c) tomfeild, some rights reserved (CC BY-NC).

View Record Details Photo by Tom Feild MBP List

<em>Lacon discoideus</em> in St. Mary's Co., Maryland (5/2/2021). (c) jtylerbell, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 370347 - Psn: 76)

Lacon discoideus in St. Mary's Co., Maryland (5/2/2021). (c) jtylerbell, some rights reserved (CC BY-NC).

View Record Details Photo by Tyler Bell MBP List

Lacon discoideus in Carroll Co., Maryland (Date obscured). (c) bugologist2, some rights reserved (CC BY-NC).

View Record Details Photo by bugologist2 via iNaturalist MBP List

<em>Lacon discoideus</em> in St. Mary's Co., Maryland (6/30/2021). (c) jtylerbell, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 405477 - Psn: 78)

Lacon discoideus in St. Mary's Co., Maryland (6/30/2021). (c) jtylerbell, some rights reserved (CC BY-NC).

View Record Details Photo by Tyler Bell MBP List

Lacon discoideus in Montgomery Co., Maryland (5/10/2022). (c) David, some rights reserved (CC BY-NC-SA).

View Record Details Photo by David via iNaturalist MBP List

<em>Lacon discoideus</em> in Washington Co., Maryland (7/1/2022). (c) Mark Etheridge, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 596996 - Psn: 78)

Lacon discoideus in Washington Co., Maryland (7/1/2022). (c) Mark Etheridge, some rights reserved (CC BY-NC).

View Record Details Photo by Mark Etheridge MBP List

<em>Lacon discoideus</em> in St. Mary's Co., Maryland (10/12/2022). (c) jtylerbell, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 664541 - Psn: 78)

Lacon discoideus in St. Mary's Co., Maryland (10/12/2022). (c) jtylerbell, some rights reserved (CC BY-NC).

View Record Details Photo by Tyler Bell MBP List

Lacon discoideus in St. Mary's Co., Maryland (5/2/2021). (c) jtylerbell, some rights reserved (CC BY-NC).

View Record Details Photo by Tyler Bell MBP List

Lacon discoideus in Carroll Co., Maryland (Date obscured). (c) bugologist2, some rights reserved (CC BY-NC).

View Record Details Photo by bugologist2 via iNaturalist MBP List

Lacon discoideus in Montgomery Co., Maryland (5/10/2022). (c) David, some rights reserved (CC BY-NC-SA).

View Record Details Photo by David via iNaturalist MBP List

<em>Lacon discoideus</em> in Anne Arundel Co., Maryland (5/20/2021). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 381433 - Psn: 200)

Lacon discoideus in Anne Arundel Co., Maryland (5/20/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

<em>Lacon discoideus</em> in Montgomery Co., Maryland (5/28/2023). (c) nathan tea, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 810144 - Psn: 200)

Lacon discoideus in Montgomery Co., Maryland (5/28/2023). (c) nathan tea, some rights reserved (CC BY-NC).

View Record Details Photo by nathan tea via iNaturalist MBP List

<em>Lacon discoideus</em> in Howard Co., Maryland (7/14/2025). (c) Timothy Reichard, all rights reserved (Photo ID: 1428564 - Psn: 200)

View Record Details Photo by Timothy Reichard MBP List

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

A Lacon discoideus in Carroll Co., Maryland (4/7/2019). Determined by Blaine Mathison/BugGuide. View Record Details Media by Peter Coffey.

A Lacon discoideus in Washington Co., Maryland (5/24/2019). View Record Details Media by Mark Etheridge.

A Lacon discoideus in Anne Arundel Co., Maryland (3/24/2019). Verified by Bruce Tilden/BugGuide. View Record Details Media by Judy Gallagher.

A Lacon discoideus in Harford Co., Maryland (5/8/2020). View Record Details Media by Dave Webb.

A Lacon discoideus in Harford Co., Maryland (1/5/2022). View Record Details Media by Dave Webb.

A Lacon discoideus in Frederick Co., Maryland (5/27/2018). Determined by Blaine Mathison/BugGuide. View Record Details Media by Mark Etheridge.

A Lacon discoideus in Baltimore Co., Maryland (1/20/2021). View Record Details Media by Dave Webb.

A Lacon discoideus in Harford Co., Maryland (3/27/2021). View Record Details Media by Dave Webb.

A Lacon discoideus in Baltimore Co., Maryland (5/28/2017). Determined by Blaine Mathison/BugGuide. View Record Details Media by Emily Stanley.

A Lacon discoideus in St. Mary's Co., Maryland (5/29/2020). Verified by Blaine Mathison/BugGuide. View Record Details Media by Tyler Bell.

A Lacon discoideus in Frederick Co., Maryland (6/12/2016). Determined by Blaine Mathison/BugGuide. View Record Details Media by Mark Etheridge.

Lacon discoideus in Anne Arundel Co., Maryland (3/24/2019). (c) Katja Schulz, some rights reserved (CC BY). View Record Details Media by Katja Schulz via iNaturalist.

Lacon discoideus in Montgomery Co., Maryland (5/10/2022). (c) David, some rights reserved (CC BY-NC-SA). View Record Details Media by David via iNaturalist.

Lacon discoideus in Anne Arundel Co., Maryland (3/24/2019). (c) Judy Gallagher, some rights reserved (CC BY). View Record Details Media by Judy Gallagher.

Lacon discoideus in Anne Arundel Co., Maryland (3/24/2019). (c) Katja Schulz, some rights reserved (CC BY). View Record Details Media by Katja Schulz via iNaturalist.

Lacon discoideus in Carroll Co., Maryland (Date obscured). (c) bugologist2, some rights reserved (CC BY-NC). View Record Details Media by bugologist2 via iNaturalist.

Lacon discoideus in Carroll Co., Maryland (7/20/2020). (c) tomfeild, some rights reserved (CC BY-NC). View Record Details Media by Tom Feild.

Lacon discoideus in St. Mary's Co., Maryland (5/2/2021). (c) jtylerbell, some rights reserved (CC BY-NC). View Record Details Media by Tyler Bell.

Lacon discoideus in Carroll Co., Maryland (Date obscured). (c) bugologist2, some rights reserved (CC BY-NC). View Record Details Media by bugologist2 via iNaturalist.

Lacon discoideus in St. Mary's Co., Maryland (6/30/2021). (c) jtylerbell, some rights reserved (CC BY-NC). View Record Details Media by Tyler Bell.

Lacon discoideus in Montgomery Co., Maryland (5/10/2022). (c) David, some rights reserved (CC BY-NC-SA). View Record Details Media by David via iNaturalist.

Lacon discoideus in Washington Co., Maryland (7/1/2022). (c) Mark Etheridge, some rights reserved (CC BY-NC). View Record Details Media by Mark Etheridge.

Lacon discoideus in St. Mary's Co., Maryland (10/12/2022). (c) jtylerbell, some rights reserved (CC BY-NC). View Record Details Media by Tyler Bell.

Lacon discoideus in St. Mary's Co., Maryland (5/2/2021). (c) jtylerbell, some rights reserved (CC BY-NC). View Record Details Media by Tyler Bell.

Lacon discoideus in Carroll Co., Maryland (Date obscured). (c) bugologist2, some rights reserved (CC BY-NC). View Record Details Media by bugologist2 via iNaturalist.

Lacon discoideus in Montgomery Co., Maryland (5/10/2022). (c) David, some rights reserved (CC BY-NC-SA). View Record Details Media by David via iNaturalist.

Lacon discoideus in Anne Arundel Co., Maryland (5/20/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Lacon discoideus in Montgomery Co., Maryland (5/28/2023). (c) nathan tea, some rights reserved (CC BY-NC). View Record Details Media by nathan tea via iNaturalist.

Source: Wikipedia

Lacon discoideus

Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Clade:	Pancrustacea
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Infraorder:	Elateriformia
Family:	Elateridae
Genus:	Lacon
Species:	L. discoideus
Binomial name
*Lacon discoideus* (Weber, 1801)
Synonyms^[1]
Elater discoideus Weber, 1801

Lacon discoideus is a species of click beetle native to eastern North America.^[2]