A Giant Black Water Beetle in Talbot Co., Maryland (5/22/2014).

Photo by Jim Brighton MBP List

A Giant Black Water Beetle in Worcester Co., Maryland (7/10/2013).

View Record Details Photo by Scott Housten MBP List

A Giant Black Water Beetle in Worcester Co., Maryland (4/3/2015).

View Record Details Photo by Mike Burchett MBP List

Giant Black Water Beetle in Anne Arundel Co., Maryland (9/3/2019). (c) Timothy Reichard, all rights reserved. (Photo ID: 200475 - Psn: 25)

View Record Details Photo by Timothy Reichard MBP List

A Giant Black Water Beetle in Somerset Co., Maryland (8/4/2007). Determined by Dr. Arthur Evans.

Photo by Lance Biechele MBP List

Giant Black Water Beetle in Queen Anne's Co., Maryland (5/13/2007). (c) Hans Holbrook, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 188820 - Psn: 35)

Giant Black Water Beetle in Queen Anne's Co., Maryland (5/13/2007). (c) Hans Holbrook, some rights reserved (CC BY-NC).

View Record Details Photo by Hans Holbrook MBP List

Giant Black Water Beetle in Calvert Co., Maryland (4/7/2021). (c) jtylerbell, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 358874 - Psn: 43)

Giant Black Water Beetle in Calvert Co., Maryland (4/7/2021). (c) jtylerbell, some rights reserved (CC BY-NC).

View Record Details Photo by Tyler Bell MBP List

Giant Black Water Beetle in Calvert Co., Maryland (4/7/2021). (c) jtylerbell, some rights reserved (CC BY-NC).

View Record Details Photo by Tyler Bell MBP List

Giant Black Water Beetle in Baltimore Co., Maryland (4/26/2020). (c) laurabankey, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 188772 - Psn: 45)

Giant Black Water Beetle in Baltimore Co., Maryland (4/26/2020). (c) laurabankey, some rights reserved (CC BY-NC).

View Record Details Photo by laurabankey via iNaturalist MBP List

Giant Black Water Beetle in Dorchester Co., Maryland (8/6/2021). (c) Jim Brighton, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 431121 - Psn: 52)

Giant Black Water Beetle in Dorchester Co., Maryland (8/6/2021). (c) Jim Brighton, some rights reserved (CC BY-NC).

View Record Details Photo by Jim Brighton MBP List

A Giant Black Water Beetle in Kent Co., Maryland (8/6/2021). Determined by Matthew Pintar, Ph.D., Florida International University.

View Record Details Photo by Dave Webb MBP List

Giant Black Water Beetle in Dorchester Co., Maryland (8/6/2021). (c) tomfeild, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 485081 - Psn: 55)

Giant Black Water Beetle in Dorchester Co., Maryland (8/6/2021). (c) tomfeild, some rights reserved (CC BY-NC).

View Record Details Photo by Tom Feild MBP List

Giant Black Water Beetle in Anne Arundel Co., Maryland (9/3/2019). (c) Timothy Reichard, all rights reserved. (Photo ID: 200476 - Psn: 56)

View Record Details Photo by Timothy Reichard MBP List

Giant Black Water Beetle in Dorchester Co., Maryland (8/6/2021). (c) tomfeild, some rights reserved (CC BY-NC).

View Record Details Photo by Tom Feild MBP List

Giant Black Water Beetle in Garrett Co., Maryland (10/16/2020). (c) Ashley Rodeheaver, all rights reserved. (Photo ID: 240355 - Psn: 64)

View Record Details Photo by Ashley Rodeheaver MBP List

Giant Black Water Beetle in Dorchester Co., Maryland (8/6/2021). (c) tomfeild, some rights reserved (CC BY-NC).

View Record Details Photo by Tom Feild MBP List

A Giant Black Water Beetle in Dorchester Co., Maryland (8/16/2018).

View Record Details Photo by Mark Etheridge MBP List

Giant Black Water Beetle in Garrett Co., Maryland (10/16/2020). (c) Ashley Rodeheaver, all rights reserved. (Photo ID: 240354 - Psn: 65)

View Record Details Photo by Ashley Rodeheaver MBP List

Giant Black Water Beetle in Dorchester Co., Maryland (8/6/2021). (c) tomfeild, some rights reserved (CC BY-NC).

View Record Details Photo by Tom Feild MBP List

Giant Black Water Beetle in Dorchester Co., Maryland (8/6/2021). (c) Timothy Reichard, all rights reserved. (Photo ID: 448310 - Psn: 78)

View Record Details Photo by Timothy Reichard MBP List

Giant Black Water Beetle in Garrett Co., Maryland (Date obscured). (c) Kyle Klotz, all rights reserved. (Photo ID: 788971 - Psn: 85)

View Record Details Photo by Kyle Klotz MBP List

Giant Black Water Beetle in Frederick Co., Maryland (4/25/2019). (c) botanygirl, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 188876 - Psn: 88)

Giant Black Water Beetle in Frederick Co., Maryland (4/25/2019). (c) botanygirl, some rights reserved (CC BY).

View Record Details Photo by botanygirl via iNaturalist MBP List

Giant Black Water Beetle in Garrett Co., Maryland (10/16/2020). (c) Ashley Rodeheaver, all rights reserved. (Photo ID: 240356 - Psn: 88)

View Record Details Photo by Ashley Rodeheaver MBP List

Giant Black Water Beetle in Frederick Co., Maryland (4/25/2019). (c) botanygirl, some rights reserved (CC BY).

View Record Details Photo by botanygirl via iNaturalist MBP List

Giant Black Water Beetle in Frederick Co., Maryland (4/25/2019). (c) botanygirl, some rights reserved (CC BY).

View Record Details Photo by botanygirl via iNaturalist MBP List

Giant Black Water Beetle in Garrett Co., Maryland (Date obscured). (c) Kyle Klotz, all rights reserved. (Photo ID: 788974 - Psn: 95)

View Record Details Photo by Kyle Klotz MBP List

Giant Black Water Beetle in Prince George's Co., Maryland (6/10/2018). (c) jkfarkas, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 496547 - Psn: 122)

Giant Black Water Beetle in Prince George's Co., Maryland (6/10/2018). (c) jkfarkas, some rights reserved (CC BY-NC).

View Record Details Photo by jkfarkas via iNaturalist MBP List

Giant Black Water Beetle in Prince George's Co., Maryland (6/10/2018). (c) jkfarkas, some rights reserved (CC BY-NC).

View Record Details Photo by jkfarkas via iNaturalist MBP List

Map Snapshot

25 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

Status

This large and distinctive species is widespread in North America. It occurs near water and frequently comes to lights.

Description

H. ovatus is smaller and has a bilobed prosternum.

Seasonality Snapshot

Resources

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

View images at BugGuide

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

A Giant Black Water Beetle in Talbot Co., Maryland (5/22/2014). Media by Jim Brighton.

A Giant Black Water Beetle in Worcester Co., Maryland (7/10/2013). View Record Details Media by Scott Housten.

A Giant Black Water Beetle in Worcester Co., Maryland (4/3/2015). View Record Details Media by Mike Burchett.

A Giant Black Water Beetle in Somerset Co., Maryland (8/4/2007). Determined by Dr. Arthur Evans. Media by Lance Biechele.

Giant Black Water Beetle in Queen Anne's Co., Maryland (5/13/2007). (c) Hans Holbrook, some rights reserved (CC BY-NC). View Record Details Media by Hans Holbrook.

Giant Black Water Beetle in Calvert Co., Maryland (4/7/2021). (c) jtylerbell, some rights reserved (CC BY-NC). View Record Details Media by Tyler Bell.

Giant Black Water Beetle in Baltimore Co., Maryland (4/26/2020). (c) laurabankey, some rights reserved (CC BY-NC). View Record Details Media by laurabankey via iNaturalist.

Giant Black Water Beetle in Dorchester Co., Maryland (8/6/2021). (c) Jim Brighton, some rights reserved (CC BY-NC). View Record Details Media by Jim Brighton.

A Giant Black Water Beetle in Kent Co., Maryland (8/6/2021). Determined by Matthew Pintar, Ph.D., Florida International University. View Record Details Media by Dave Webb.

Giant Black Water Beetle in Dorchester Co., Maryland (8/6/2021). (c) tomfeild, some rights reserved (CC BY-NC). View Record Details Media by Tom Feild.

A Giant Black Water Beetle in Dorchester Co., Maryland (8/16/2018). View Record Details Media by Mark Etheridge.

Giant Black Water Beetle in Dorchester Co., Maryland (8/6/2021). (c) tomfeild, some rights reserved (CC BY-NC). View Record Details Media by Tom Feild.

Giant Black Water Beetle in Frederick Co., Maryland (4/25/2019). (c) botanygirl, some rights reserved (CC BY). View Record Details Media by botanygirl via iNaturalist.

Giant Black Water Beetle in Prince George's Co., Maryland (6/10/2018). (c) jkfarkas, some rights reserved (CC BY-NC). View Record Details Media by jkfarkas via iNaturalist.

Source: Wikipedia

Hydrophilus triangularis

Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Infraorder:	Staphyliniformia
Family:	Hydrophilidae
Genus:	Hydrophilus
Species:	H. triangularis
Binomial name
*Hydrophilus triangularis* Say, 1823

Hydrophilus triangularis, known generally as the giant black water beetle or giant water scavenger, is a species of water scavenger beetle in the family Hydrophilidae.^[1]^[2]^[3] It is the most common and widespread species of Hydrophilus in North America, being found across the contiguous United States, southern Canada, and Mexico.^[4]^[5]

References

[edit]

^ "Hydrophilus triangularis Report". Integrated Taxonomic Information System. Retrieved 2019-09-23.
^ "Hydrophilus triangularis". GBIF. Retrieved 2019-09-23.
^ "Hydrophilus triangularis species Information". BugGuide.net. Retrieved 2019-09-23.
^ Short, A. E. Z.; McIntosh, C. E. (2014). "Review of the giant water scavenger beetle genus Hydrophilus Geoffroy (Coleoptera: Hydrophilidae) of the United States and Canada". The Coleopterists Bulletin. 68 (2): 187–198. doi:10.1649/0010-065X-68.2.187.
^ Arce-Pérez, Roberto; Morón, Miguel Ángel (2013). "El género Hydrophilus (Coleoptera: Hydrophilidae: Hydrophilina) en México y Centroamérica". Revista Mexicana de Biodiversidad (in Spanish). 84: 140–152. doi:10.7550/rmb.32113.

External links

[edit]

Media related to Hydrophilus triangularis at Wikimedia Commons

Taxon identifiers
Hydrophilus triangularis	Wikidata: Q14931038 BioLib: 308319 BOLD: 486186 BugGuide: 37654 CoL: 6MK3P EoL: 337950 GBIF: 4988136 iNaturalist: 221649 IRMNG: 11404036 ITIS: 113207 NatureServe: 2.744230 NCBI: 1542160 Open Tree of Life: 3341447

This Hydrophilidae-related article is a stub. You can help Wikipedia by expanding it.

Giant Black Water Beetle

Hydrophilus triangularis Say, 1823

Synonyms

Tags