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1 September 2010 Habitat Identification for Three California Species of Sanfilippodytes Franciscolo (Coleoptera: Dytiscidae)
Douglas L. Post
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Three species of the genus Sanfilippodytes Franciscolo, 1979 (Sanfilippodytes adelardi [Rochette, 1983], Sanfilippodytes bidessoides [Leech, 1941], and Sanfilippodytes setifer Roughley and Larson, 2000) have been described from ponds or rain pools in the town of Caspar, California. These species were found to be strongly associated with the pygmy forest of Mendocino, California. The soils of the pygmy forest are strongly podsolized and nearly impenetrable to water. As a result, rain water pools and quickly becomes acidified. All three species were found in these acidic pools, where they are often quite abundant. The small number of specimens collected prior to this study was most likely a result of having an inadequate understanding of the habitat.

Douglas L. Post "Habitat Identification for Three California Species of Sanfilippodytes Franciscolo (Coleoptera: Dytiscidae)," The Coleopterists Bulletin 64(3), 258-264, (1 September 2010).
Received: 5 January 2010; Accepted: 2 July 2010; Published: 1 September 2010
aquatic habitat
podsolized soil
predaceous diving beetles
pygmy forest
rain pools
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