A Helichus lithophilus in Frederick Co., Maryland (8/5/2016). Determined by Brady Richards/BugGuide.

A Helichus lithophilus in Allegany Co., Maryland (7/27/2018). Determined by Brady Richards/BugGuide.

Helichus lithophilus in Frederick Co., Maryland (8/11/2021). (c) Emilio Concari, some rights reserved (CC BY-NC).

Helichus lithophilus in Washington Co., Maryland (7/29/2022). (c) Mark Etheridge, some rights reserved (CC BY-NC).

Helichus lithophilus in Washington Co., Maryland (9/3/2022). (c) Frode Jacobsen, some rights reserved (CC BY-NC).

Helichus lithophilus in Allegany Co., Maryland (7/27/2018). (c) Josh Emm, some rights reserved (CC BY-NC).

Helichus lithophilus in Montgomery Co., Maryland (Date obscured). (c) Adrienne van den Beemt, some rights reserved (CC BY).

A Helichus lithophilus in Frederick Co., Maryland (7/30/2015). Verified by Brady Richards/BugGuide.

Helichus lithophilus in Frederick Co., Maryland (7/28/2021). (c) Emilio Concari, some rights reserved (CC BY-NC).

Helichus lithophilus in Montgomery Co., Maryland (7/30/2022). (c) Catbird, some rights reserved (CC BY-NC).

A Helichus lithophilus in Harford Co., Maryland (8/12/2021). Verified by Vassili Belov/BugGuide.

45 Records

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A Helichus lithophilus in Frederick Co., Maryland (8/5/2016). Determined by Brady Richards/BugGuide. View Record Details Media by Mark Etheridge.

A Helichus lithophilus in Allegany Co., Maryland (7/27/2018). Determined by Brady Richards/BugGuide. View Record Details Media by Josh Emm.

Helichus lithophilus in Frederick Co., Maryland (8/11/2021). (c) Emilio Concari, some rights reserved (CC BY-NC). View Record Details Media by Emilio Concari.

Helichus lithophilus in Washington Co., Maryland (7/29/2022). (c) Mark Etheridge, some rights reserved (CC BY-NC). View Record Details Media by Mark Etheridge.

Helichus lithophilus in Washington Co., Maryland (9/3/2022). (c) Frode Jacobsen, some rights reserved (CC BY-NC). View Record Details Media by Frode Jacobsen.

Helichus lithophilus in Allegany Co., Maryland (7/27/2018). (c) Josh Emm, some rights reserved (CC BY-NC). View Record Details Media by Josh Emm.

Helichus lithophilus in Montgomery Co., Maryland (Date obscured). (c) Adrienne van den Beemt, some rights reserved (CC BY). View Record Details Media by Adrienne van den Beemt.

A Helichus lithophilus in Frederick Co., Maryland (7/30/2015). Verified by Brady Richards/BugGuide. View Record Details Media by Mark Etheridge.

Helichus lithophilus in Frederick Co., Maryland (7/28/2021). (c) Emilio Concari, some rights reserved (CC BY-NC). View Record Details Media by Emilio Concari.

Helichus lithophilus in Montgomery Co., Maryland (7/30/2022). (c) Catbird, some rights reserved (CC BY-NC). View Record Details Media by mitchgreene via iNaturalist.

A Helichus lithophilus in Harford Co., Maryland (8/12/2021). Verified by Vassili Belov/BugGuide. View Record Details Media by Dave Webb.

Source: Wikipedia

Helichus lithophilus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Clade:	Pancrustacea
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Infraorder:	Elateriformia
Family:	Dryopidae
Genus:	Helichus
Species:	H. lithophilus
Binomial name
*Helichus lithophilus* (Germar, 1824)

Helichus lithophilus is a species of long-toed water beetle in the family Dryopidae. It is found in North America.^[1]^[2]^[3]