Genus Psephenus

Classification · Synonyms and other taxonomic changes · Explanation of Names · Numbers · Size · Identification · Print References · Works Cited

Psephenus texanus Brown and Arrington - Psephenus texanus

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Class Insecta (Insects)

Order Coleoptera (Beetles)

Suborder Polyphaga (Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles)

Superfamily Byrrhoidea (Pill, Water and Toe-winged Beetles)

Family Psephenidae (Water Penny Beetles)

Genus Psephenus

Synonyms and other taxonomic changes

Psephenus Haldeman, 1853

Explanation of Names

From Greek psepheno dark, obscure and/or psepho meaning "a small stone" or darkness (1).

Numbers

Nearctica (2) lists seven species in North America.

Size

adult 4-6 mm

Identification

Adult: TBA

Larvae

Psephenus has abdominal gills, while Ectopria does not (Don Chandler, in comments here).

Print References

Borror, entries for psepheno, psepho (1)

Ciegler, p. 177, fig. 13.2--adult of Psephenus herricki (3)

Dillon and Dillon, p. 365, plate 18--adult of Psephenus herricki (4)

Works Cited

1.	Dictionary of Word Roots and Combining Forms By Donald J. Borror

2.	Nearctica: Nomina Insecta Nearctica

3.	Water Beetles of South Carolina By Janet Ciegler

4.	A Manual of Common Beetles of Eastern North America By Dillon, Elizabeth S., and Dillon, Lawrence

Contributed by tom murray on 2 November, 2005 - 8:29pm
Additional contributions by cotinis
Last updated 7 November, 2009 - 6:33am

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