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Subspecies Tropisternus lateralis nimbatus

 
 
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A revision of the genus Tropisternus (Coleoptera: Hydrophilidae)
By Spangler P.J.
Unpubl. Ph.D. thesis. U. Missouri, Columbia. 365 pp., 1960

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.

The Hydrophilinae of Delaware (Coleoptera: Hydrophilidae)
By Short, A.E.Z.
The Coleopterists Bulletin, 58: 598-599, 2004
52 species recorded, 33 of which are newly recorded.

Review of the Family Hydrophilidae of Canada and Alaska
By Ales Smetana
Entomological Society of Canada, 1988
Citation:
Smetana, A. 1988. Review of the Family Hydrophilidae of Canada and Alaska (Coleoptera). Mem. Ent. Soc. Can. 142: 1-316.

Available online ($15 pay per view for non-members) at NRC Research Press:
http://pubservices.nrc-cnrc.ca/rp-ps/inDetail.jsp?jcode=entm&lang=eng&vol=120&is=142

World Catalogue of Insects, Vol. 2: Hydrophiloidea (Coleoptera).
By Hansen, M.
Apollo Books, Stenstrup, Denmark. 416 pp., 1999
Limited Perview

Hansen, M. 1999. World Catalogue of Insects, Vol. 2: Hydrophiloidea (Coleoptera). Apollo Books, Vester-Skerninge, Denmark. 416 pp.

World Catalogue of Insects is an initiative aimed at compiling worldscale, authoritative catalogues of monophyletic insect taxa.

Volumes will as a minimum contain standard nomenclatoral information on all names pertaining to the taxon treated, including type locality and distribution to the extent this is relevant.

Additional information is optional, e.

Aquatic Hydrophilidae and Hydraenidae of Wisconsin (Coleoptera). II. Distribution, habitat, life cycle and identification...
By Hilsenhoff W.L.
Great Lakes Entomol. 28: 97‒126, 1995
Full title: Aquatic Hydrophilidae and Hydraenidae of Wisconsin (Coleoptera). II. Distribution, habitat, life cycle and identification of species of Hydrobiini and Hydrophilini.
Full text

New North American associations of Coleoptera with Myxomycetes
By Stephenson S.L., Wheeler Q.D., McHugh J.V., Fraissinet P.R.
J. Nat. Hist. 28: 921–936, 1994

New southwestern Buprestidae and Cerambycidae with notes.
By Knull, J.N.
Ohio Journal of Science 37(5): 301-309., 1937
Full PDF

Knull, J.N. 1937. New southwestern Buprestidae and Cerambycidae with notes. Ohio Journal of Science 37(5): 301-309.

 
 
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