Abstract
The genus Notionotus Spangler, 1972 presently contains 16 species of small to very small water scavenger beetles in the Neotropical and Oriental Regions. The first two species were described from hygropetric habitats in Venezuela (Spangler 1972), with additional Neotropical species described from Mesoamerica (Perkins 1980). Known exclusively as a Neotropical genus for nearly thirty years, Hebauer (2001, 2003) subsequently recorded the genus in the Old World, describing six species from India and Southeast Asia. Most recently, Queney (2010) described species from northeastern South America.
References
Queney, P. (2010) Three new species of Notionotus Spangler from French Guiana and Guyana (Coleoptera: Hydrophilidae). Koleopterologische Rundschau, 80, 129–137.
Hebauer, F. (2001) The genus Notionotus Spangler, 1972 in the Old World (Coleoptera: Hydrophilidae). Acta Coleopterologica, 17(4), 9–14.
Hebauer, F. (2003) Another new Notionotus from southern India (Coleoptera: Hydrophilidae). – Acta Coleopterologica, 19(1), 63–66.
Perkins, P.D. (1980) Three new Middle American species of aquatic beetles in the genus Notionotus Spangler (Hydrophilidae: Hydrobiinae). Journal of the New York Entomological Society, 87(1979), 304–311.
Spangler, P.J. (1972) A new genus and two new species of madicolous beetles from Venezuela (Coleoptera: Hydrophilidae). Proceedings of the Biological Society of Washington, 90, 566–579.