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Family Limnichidae - Minute Marsh-loving Beetles

unknown beetle - Eulimnichus Minute Marsh-loving Beetle - Limnichites punctatus Physemus minutus Physemus minutus LeConte - Physemus minutus Wee Beetle - Eulimnichus Small Beetle - Eulimnichus Limnichites punctatus Eulimnichus?
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Elateriformia)
Superfamily Byrrhoidea (Pill, Water and Toe-winged Beetles)
Family Limnichidae (Minute Marsh-loving Beetles)
Synonyms and other taxonomic changes
Lutrochus is now treated in a separate family
Explanation of Names
Limnichidae Erichson 1846
Numbers
28 spp. in 6 genera in our area(1)(2), ~400 spp. in 37 genera of 4 subfamilies worldwide(3)
Range
worldwide
Habitat
riparian on streamside/emergent plants/wood or on windrows of debris; larvae in damp soil/humus near water(1)
Food
prob. herbivorous(1)
Works Cited
1.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.
2.A catalog of Coleoptera of America North of Mexico. Limnichidae
D.P. Wooldridge. 1986. USDA Agriculture handbook no. 529-48. x + 8 pp.
3.Order Coleoptera Linnaeus, 1758. In: Zhang Z.-Q. (ed.) Animal biodiversity: An outline of higher-level classification...
Ślipiński S.A., Leschen R.A.B., Lawrence J.F. 2011. Zootaxa 3148: 203–208.