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Genus Laccophilus

Dytiscid? - Laccophilus fasciatus another Laccophilus - Laccophilus maculosus Laccophilus proximus Say - Laccophilus proximus Predaceous Diving Beetle - Laccophilus maculosus Laccophilus fasciatus Laccophilus maculosus Laccophilus salvini - male Laccophilus - Laccophilus maculosus - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga
Family Dytiscidae (Predaceous Diving Beetles)
Subfamily Laccophilinae
Genus Laccophilus
Explanation of Names
Laccophilus Leach 1817
Numbers
15 spp. in our area, with 3 spp. ranging into Canada(1); 2nd most diverse dytiscid genus globally, with ~300 described species(2)(3)
NB: L. salvini (se AZ) omitted in (4)
Size
1.9-7.2 mm(4)
Identification
Adults:
No visible scutellum
pro- and mesotarsi clearly 5-segmented (vs pseudotetramerous in Hydroporinae)
tip of metatibial spurs emarginate (vs acute in Laccodytes)
colour yellow to black, some spp. distinctly patterned
Range
worldwide and across NA (more diverse in the south)(4)
Habitat
mainly standing water, some in sluggish streams(4); relatively open pools and ponds in forested and grassland areas(5)
Life Cycle
Univoltine; adults overwinter, larvae develop and mature in spring and summer(4)
Works Cited
1.A taxonomic revision of the aquatic beetle genus Laccophilus (Dytiscidae) of North America
Zimmerman, John R. 1970. Memoirs of the American Entomological Society.
2.Diving beetles of the world: systematics and biology of the Dytiscidae
Miller K.B., Bergsten J. 2016. JHU Press. 336 pp.
3.BioLib.cz
4.Predaceous Diving Beetles (Coleoptera: Dytiscidae) of the Nearctic Region, with emphasis on the fauna of Canada and Alaska
D.J. Larson, Y. Alarie, and R.E. Roughley. 2001. NRC 43253.
5.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.