Hydrocolus

Roughley & Larson in Larson, Alarie & Roughley, 2000

Hydrocolus is a of small in the , Hydroporinae. The genus was erected in 2000 to accommodate several previously placed in related genera, particularly Hydroporus. It contains approximately twelve described species distributed primarily in North America, with some species known from northern Europe. Species are associated with and lotic freshwater .

Hydrocolus deflatus by (c) Matthew Pintar, some rights reserved (CC BY), uploaded by Matthew Pintar. Used under a CC-BY license.Hydrocolus deflatus by (c) Matthew Pintar, some rights reserved (CC BY), uploaded by Matthew Pintar. Used under a CC-BY license.Hydrocolus paugus by (c) Matthew Pintar, some rights reserved (CC BY), uploaded by Matthew Pintar. Used under a CC-BY license.

Pronunciation

How to pronounce Hydrocolus: //ˈhaɪdroʊˌkɒləs//

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Habitat

Freshwater aquatic including ponds, lakes, and slow-moving streams. Specific microhabitat preferences vary by .

Distribution

North America (primary range), with some extending into northern Europe (Sweden, Finland). GBIF records indicate presence in the northeastern United States (Vermont) and Sweden.

Ecological Role

Predatory aquatic that function as in freshwater .

Similar Taxa

  • HydroporusClosely related from which Hydrocolus were segregated; distinguished by subtle differences in male and body proportions
  • SanfilippodytesAnother small Hydroporinae with overlapping preferences; requires examination of genitalic structures for definitive identification

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