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Subfamily Sphaeridiinae

 
 
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Revision of the subfamily Sphaeridiinae of America north of Mexico (Coleoptera: Hydrophilidae)
By Smetana A.
Mem. Ent. Soc. Canada 105: 1–292, 1978
Abstract

2 supplements have been published in 1979 (Can. Entomol. 111: 959-966) and 1984 (Can. Entomol. 116: 555-566)

Coelostoma orbiculare (Fabricius) (Coleoptera: Hydrophilidae: Sphaeridiinae): new records and distribution in North America
By Pintar, M.R.
The Coleopterists Bulletin 77 (3): 382–385, 2023
Pintar, M.R. 2023. Coelostoma orbiculare (Fabricius) (Coleoptera: Hydrophilidae: Sphaeridiinae): new records and distribution in North America. The Coleopterists Bulletin 77 (3): 382–385.
doi.org/10.1649/0010-065X-77.3.382

Full text

A new species of the genus Oosternum and a key to the U.S. species (Coleoptera: Hydrophilidae).
By Spangler, P.J.
Proceedings of the Biological Society of Washington 75: 97-100., 1962
Full PDF (of the full Journal Issue)

Spangler, P.J. 1962. A new species of the genus Oosternum and a key to the U.S. species (Coleoptera: Hydrophilidae). Proceedings of the Biological Society of Washington 75: 97-100.

Redescriptions and lectotype designations of Central American species of Phaenonotum Sharp (Coleoptera, Hydrophilidae) ...
By Albert Deler-Hernández, Martin Fikácek
ZooKeys 579: 83-98, 2016
Full title: Redescriptions and lectotype designations of Central American species of Phaenonotum Sharp (Coleoptera, Hydrophilidae) based on the type material from the David Sharp collection
Full text (PDF)

Revision of the beach-dwelling species of Cercyon Leach (Coleoptera: Hydrophilidae) of the West Coast of North America
By Suzumura A., Kobayashi N., Ôhara M.
Col. Bull. 73: 473‒493, 2019

A review of the Cercyon Leach (Coleoptera, Hydrophilidae, Sphaeridiinae) of the Greater Antilles
By Emmanuel Arriaga-Varela, Matthias Seidel, Albert Deler-Hernández, Viktor Senderov, Martin Fikácek
ZooKeys 681: 39-93, 2017
Full text (PDF)

Ten species are recorded (of which five are described as new):
C. armatipenis sp.n.
C. floridanus BG page
C. gimmeli sp.n.
C. insularis
C. nigriceps
C. praetextatus BG page
C. quisquilius
C. sklodowskae sp.n.
C. spiniventris sp.n.
C. taino sp.n.

Occurrence of introduced species of the genus Cercyon (Coleoptera: Hydrophilidae) in the Neotropical Region
By M. Fikáček
Rev. Soc. Entomol. Argent. 68: 351-357, 2009

Molecular phylogeny, evolution, and classification of the Hydrophilidae (Coleoptera).
By Short A.E.Z. & Fikacek M.
Systematic Entomology 38: 723-​752., 2013
Full PDF

Short A.E.Z. & Fikacek M. 2013. Molecular phylogeny, evolution, and classification of the Hydrophilidae (Coleoptera). Systematic Entomology 38: 723-​752.

Abstract. The phylogeny and evolutionary history of the water scavenger beetles (Coleoptera: Hydrophilidae) are inferred from comprehensive analyses of DNA sequence data from the mitochondrial genes COI, COII and 16S and the nuclear genes 18S, 28S and arginine kinase. Bayesian and maximum parsimony analyses included 151 taxa, representing all subfamilies, tribes and subtribes that have ever been proposed in the family, as well as representatives of the hydrophiloid families Helophoridae, Hydrochidae, Spercheidae, Epimetopidae and Georissidae. The resulting well-supported trees strongly disagree with prior classifications of the Hydrophilidae, suggesting that the smaller subfamilies (Horelophinae, Horelophopsinae and Sphaeridiinae) are derived from within the larger Hydrophilinae. The existing tribal classification is more compatible with our results, but many significant differences are evident. Here, we present a new classification of the Hydrophilidae comprising 6 subfamilies and 12 tribes. Each subfamily and tribe is reviewed in detail with (i) a morphological diagnosis, including known or putative morphological synapomorphies, (ii) its taxonomic circumscription, including genera not included in our analyses, and (iii) a review of its general biology and geographic distribution. A new identification key to subfamily and tribe based on adult morphology is also provided.

 
 
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