EurekaMag
+ Most Popular
Cunninghamia lanceolata plantations in China
Mammalian lairs in paleo ecological studies and palynology
Studies on technological possibilities in utilization of anhydrous milk fat for production of recombined butter-like products
Should right-sided fibroelastomas be operated upon?
Large esophageal lipoma
Apoptosis in the mammalian thymus during normal histogenesis and under various in vitro and in vivo experimental conditions
Poissons characoides nouveaux ou non signales de l'Ilha do Bananal, Bresil
Desensitizing efficacy of Colgate Sensitive Maximum Strength and Fresh Mint Sensodyne dentifrices
Administration of fluid by subcutaneous infusion: revival of a forgotten method
Tundra mosquito control - an impossible dream?
Schizophrenia for primary care providers: how to contribute to the care of a vulnerable patient population
Geochemical pattern analysis; method of describing the Southeastern limestone regional aquifer system
Incidence of low birth weights in a hospital of Mexico City
Tabanidae
Graded management intensity of grassland systems for enhancing floristic diversity
Microbiology and biochemistry of cheese and fermented milk
The ember tetra: a new pygmy characid tetra from the Rio das Mortes, Brazil, Hyphessobrycon amandae sp. n. (Pisces, Characoidei)
Risk factors of contrast-induced nephropathy in patients after coronary artery intervention
Renovation of onsite domestic wastewater in a poorly drained soil
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Systolic blood pressure in a population of infants in the first year of life: the Brompton study
Haematological studies in rats fed with metanil yellow
Studies on pasteurellosis. I. A new species of Pasteurella encountered in chronic fowl cholera
Dormancy breaking and germination of Acacia salicina Lindl. seeds
therapy of lupus nephritis. a two-year prospective study

Systematics and zoo geography of bembidion 1. the bembidion carlhi and bembidion erasum groups of western north america coleoptera carabidae bembidiini


Systematics and zoo geography of bembidion 1. the bembidion carlhi and bembidion erasum groups of western north america coleoptera carabidae bembidiini



Entomologica Scandinavica Suppl (15): 33-72



The genus Bembidion, with its hundreds of described species whose cumulative ranges nearly cover terrestrial Earth, is an indicator of past geographic and climatic events. This paper, the 1st in a series, provides a monographic treatment of 2 species groups of Bembidion of western North America. New study methods are adapted to this purpose and old methods are modified where necessary. Data are gathered and organized in such a way that a base is established for a future comprehensive phylogenetic and zoogeographic study of the genus. Two Casey names, B. brumale and B. vacivum, are synonymized with B. castum. Ten species in 2 groups are fully discussed: B. erasum, B. osculans, B. pseudoerasum, B. sequoiae, B. castum, B. disjunctum and 4 newly-named species [B. carlhi, type locality Steamboat Creek (at Steamboat Falls, 410 m), Douglas County, Oregon [USA]; B. lindrothellus, type locality Little Boulder Creek (Haines Highway Mile 31.5), Alaska; B. lummi, type locality Friday Harbor, San Juan Island, San Juan County, Washington; and B. chintimini, type locality Mary's Peak (8 miles west of Philomath, 1220 m), Benton County, Oregon]. Their cumulative range extends from southern Alaska to southern California and from the Pacific coast east to Colorado; most species are fairly widespread within that range. Dot maps illustrate the range of each taxon. A phylogenetic analysis based on 26 characters and their respective states demonstrates relationships among B. erasum group taxa, thereby providing grounds for recognition of 4 spp. subgroups. A cladogram is provided. Based on cladistic relationships and present ranges, a zoogeographic analysis suggests the following: the B. erasum species group arose in western North America no earlier than Miocene time, in association with general cooling trends and contemporary orogenic events, and is presently restricted to that region. Four included subgroups evolved sequentially, the first (the B. osculans subgroup) perhaps as early as Late Miocene, the last (the B. erasum subgroup) during Illinoian time. All extant species appear to have differentiated in Pleistocene or post-glacial time; and present distributions demonstrate a high incidence of sympatry which reflects widespread past dispersal of species and species groups.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 006574511

Download citation: RISBibTeXText

Related references

Systematics and zoogeography of Bembidion Latreille: 1. The carlhi and erasum groups of western North America (Coleoptera: Carabidae, Bembidiini). Entomologica Scandinavica Supplement 15: 33-72, 1981

A new Bembidion species from middle Europe Bembidion Bembidionetolitzkya pseudascendens n sp Col, Carabidae, Bembidiini Eine neue Bembidion-Art aus Mitteleuropa Bembidion Bembidionetolitzkya pseudascendens n sp Col, Carabidae, Bembidiini. Entomologische Nachrichten und Berichte 481: 31-35, 2004

Uber zwei mongolische Bembidion-Arten (Col., Carabidae) und ihre Verwandtschaft - A propos de deux Bembidion de Mongolie (Coleoptera, Carabidae) et leur parenté - About two species of Bembidion from Mongolia (Coleoptera, Carabidae) and their relation. Entomol. Nach. Ber 28(2): 73-75, 1984

Eine neue Bembidion-Art aus Mitteleuropa: Bembidion (Bembidionetolitzkya) pseudascendens n. sp. (Col., Carabidae, Bembidiini). Entomologische Nachrichten und Berichte 48(1): 31-35, 2004

Review of European and West-Mediterranean Basin taxa connected at Bembidion Peryphus cruciatum Dejean Coleoptera, Carabidae, Bembidiini Revision des taxons dEurope et du bassin mediterranean occidental rattaches a Bembidion Peryphus cruciatum Dejean Coleoptera, Carabidae, Bembidiini. Nouvelle Revue d'Entomologie 22(4): 327-350, 2006

Bembidion eichleri, a new Carabidae species of the subgenus Lymnaeum Stephens, 1828 from Tunisia Coleoptera, Carabidae, Bembidiini Bembidion eichleri, eine neue Laufkaefer-Art der untergattung Lymnaeum Stephens, 1828 aus Tunesien Coleoptera, Carabidae, Bembidiini. Entomologische Blaetter fuer Biologie und Systematik der Kaefer. Dezember; 982: 81-87, 2002

Ecuadion, new subgenus of Bembidion Latreille from Ecuardorian paramo Coleoptera, Carabidae, Bembidiini Ecuadion, nouveau sous-genre de Bembidion Latreille du paramo equatorien Coleoptera, Carabidae, Bembidiini. Bollettino del Museo Civico di Storia Naturale di Venezia 53: 155-205, 2002

Distribution and variability of Bembidion Thaumatoperyphus ajmonis Netolitzky, 1935 Coleoptera Carabidae, Bembidiini Verbreitung und Variabilitaet von Bembidion Thaumatoperyphus ajmonis Netolitzky, 1935 Coleoptera Carabidae, Bembidiini. Mitteilungen Muenchener Entomologischen Gesellschaft 1 Dezember; 94: 97-102, 2004

Examination of the lecto-holotype of Bembidion brunnicorne Dejean, with a note on the current supraspecific systematics of genus Bembidion (Col., Carabidae). Atti del Museo Civico di Storia Naturale di Trieste 44: 19-31, 1992

Latest faunistic data on the genus Bembidion in the Balkan Peninsula Coleoptera, Carabidae Novejsi favnisticni podatki o rodu Bembidion na Balkanskem polotoku Coleoptera, Carabidae. Acta Biologica Slovenica 411: 13-23, 1997

Bembidion almasyi new species and 2 new geographic races of bembidion grandipenne schaum coleoptera carabidae. Acta Universitatis Carolinae-Biologica 34(3): 161-172, 1990

Una nuova specie di Bembidion del sottogenere Omoperyphus Net. Studi sui Bembidion. 8 Contributo (Coleoptera, Carabidae). Natura, Milano(1): 97-100, 1971

Comparison of karyotypes of bembidion lampros herbst and bembidion properans steph. coleoptera carabidae. Folia Biologica 35(1-2): 101-104, 1987

Rediscovery of bembidion rufotinctum with extreme range and distributional records of bembidion and other carabidae coleoptera. Entomological News 87(5-6): 159-166, 1976

Rediscovery of Bembidion rufotinctum Chaudoir, with extreme range and distributional records of Bembidion and other -Carabidae (Coleoptera). Entomological News 87(5-6): 159-166, 1976