Psephenidae (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Psephenidae" in Spanish language version.

refsWebsite

Global rank Spanish rank

3books.google.com

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447^th place

1web.archive.org

1^st place

1^st place

books.google.com

Rolf G. Beutel; Richard Leschen (2005). Morphology and Systematics 1. Walter de Gruyter. p. 521. ISBN 978-3-11-090455-0.
Arthur V. Evans (2014). Beetles of Eastern North America. Princeton University Press. p. 203. ISBN 978-1-4008-5182-9.
Arnett, Ross H. ;Thomas, Michael C. 2002. American Beetles: Polyphaga: Scarabaeoidea through Curculionoidea, Volume 2. Pages 133-134.

itis.gov

«Psephenidae (TSN 114069)». Sistema Integrado de Información Taxonómica (en inglés).

web.archive.org

EPA: The pollution sensitivity categories for benthic macroinvertebrates: sensitive, somewhat-sensitive, and tolerant. Water pennies belong to the sensitive category.