Genus Helophorus

Classification · Explanation of Names · Numbers · Identification · Range · Habitat · Life Cycle · Remarks · Print References · Works Cited

Helophorus ledatus (d'Orchymont) - Helophorus ledatus - male

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Coleoptera (Beetles)

Suborder Polyphaga

No Taxon (Series Staphyliniformia)

Superfamily Hydrophiloidea

Family Helophoridae

Genus Helophorus

Explanation of Names

Helophorus Fabricius 1775

Numbers

43 spp. in 5 subgenera in our area(1), all but a handful in the subg. Rhopalohelophorus; Eurasia has at least twice that many spp.

Identification

adults have 5 longitudinal grooves in the pronotum

Range

holarctic; in our area, mostly northern and western, with 27 spp. in Canada (of which 8 holarctic) and just 3 spp. in se. US (only H. lineatus in FL)(2)(3)

Habitat

on or around submerged or emergent vegetation in standing or slow-moving water

Life Cycle

adults come to lights

Remarks

Adults accumulate an exterior crust that must be removed before surface features can be observed(2)

Print References

Anton E., Beutel R.G. (2004) On the head morphology and systematic position of Helophorus (Coleoptera: Hydrophiloidea: Helophoridae). Zool. Anzeiger 242: 313–346.

Works Cited

1.	American Beetles, Volume I: Archostemata, Myxophaga, Adephaga, Polyphaga: Staphyliniformia Arnett, R.H., Jr., and M. C. Thomas. (eds.). 2000. CRC Press LLC, Boca Raton, FL.

2.	The Water Beetles of Florida Epler J.H. 2010. Florida Department of Environmental Protection. Tallahassee. 414 pp.

3.	Checklist of beetles (Coleoptera) of Canada and Alaska. Second edition Bousquet Y., Bouchard P., Davies A.E., Sikes D.S. 2013. ZooKeys 360: 1–402.

Contributed by Phillip Harpootlian on 26 April, 2005 - 9:38am
Additional contributions by Beatriz Moisset, Robin McLeod, Bbarnd, Mike Quinn, v belov
Last updated 17 December, 2022 - 1:56am

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