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Genus Sanfilippodytes

Small Water Beetle - Sanfilippodytes Sanfilippodytes pacificus - male Sanfilippodytes brumalis (W.J. Brown) - Sanfilippodytes brumalis - male Small Dytiscid... - Sanfilippodytes Small Dytiscid... - Sanfilippodytes Small Dytiscid... - Sanfilippodytes Dytiscid of sorts? - Sanfilippodytes Dytiscid of sorts? - Sanfilippodytes
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
Family Dytiscidae (Predaceous Diving Beetles)
Subfamily Hydroporinae
Tribe Hydroporini
Genus Sanfilippodytes
Synonyms and other taxonomic changes
Syn: Hydroporus vilis group (1)
Explanation of Names
Author: Franciscolo 1979
Numbers
25 described Nearctic spp. + a few undescribed (in the west) (1)
Size
2.1-4.3 mm (1)
Identification
Diagnosis (1):
shape elongate to oval
hind margin of metacoxal processes sinuate and incised at each side of the midline
very large metatrochanters- about half the length of the metafemora:

colour generally yellowish brown to black, with head and pronotum often darker than elytra; elytra of many species distinctly bicoloured
Range
N. Amer. endemic (ranges into Mexico), most spp. mainly northern and western, with just 3 in the east; many with restricted ranges in the west
Habitat
caves, springs; alpine and subalpine lakes; under rocks along creek/river margins; some burrow in sand and gravel substrates (1)
Print References
Franciscolo, M.E. 1979. On a Dytiscidae from a Mexican cave, a preliminary description: (Coleoptera), Sanfilippodytes n. gen. Fragmenta Entomologica 15(1): 233-241.