Zoogeography Of Species Research Articles

Desmosomatidae and Nannoniscidae (Crustacea, Isopoda, Asellota) from bathyal and abyssal depths off North Carolina and their evolution

The deep-sea asellote isopod (Crustacea) species, belonging to the families Desmosomatidae and Nannoniscidae, were studied from R/V Eastward collections of Duke University from three study sites off North Carolina. The Desmosomatid isopod Eugerda svavarssonni n. sp. is described from Site Alpha at 620m. Eugerda latipes Hansen, previously known from boreal North Atlantic, is also reported from this upper slope site. Two new desmosomatid isopods, Mirabilicoxa hessleri n. sp. and M. alberti n. sp., and a new nannoniscid isopod Exiliniscus chandravoli n. sp. are also described from site Beta from 2700 to 3700 m. A nannoniscid isopod Leutziniscus jebamoni gen n., n. sp., and a desmosomatid isopod, Prochelator sarsi n. sp., are described from the deepest study site Omega in the Hatteras Abyssal Plain. A new genus, Nannoniscella is erected to accommodate Nannoniscoides bicustatus Siebenaller and Hessler, 1977. This paper also includes discussions on comparative morphology and sexual dimorphism in species of Mirabilicoxa, zoogeography of species of the genus Eugerda and phylogeny with emphasis on the genus Prochelator.

A REVISION OF THE GENUSALEOCHARAGRAVENHORST OF AMERICA NORTH OF MEXICO (COLEOPTERA: STAPHYLINIDAE, ALEOCHARINAE)

AbstractA revision of the genusAleocharaof America north of Mexico is presented. Seven subgenera are redefined with 47 currently recognized species, of which nine are described as new (A.arizonica,A.cavernicola,A.curtidens,A.lobata,A.ocularis,A.nidicola,A.rufobmnnea,A.rufonigra,A.unicolor). The species are arranged according to their relationships into species groups within each subgenus. Sixty-one synonymies are newly established (the first specific name is valid): Subg. COPROCHARA,A.bimaculataGravenhorst =B.deserticolaCasey =B.innocuaCasey =B. obsolescens Casey =B. recta Casey;A.notulaErichson =A.duplicataErichson =B.nanellaCasey =B.nitidicollisCasey;A.suffusa(Casey) =B.acuminataCasey =A.verna brundiniBernhauer;A.vernaSay =A.alticolaSharp. Subg.XENOCHARA,A.lacertinaSharp =B.salicolaCasey =B.imbricataCasey =B.idoneaCasey =A.densiventrisBernhauer;A.sallaeiSharp =A.torquataSharp;A.puberulaKlug =B.bipartitaCasey;A.fumataGravenhorst =A.languidaSachse =B.defectaCasey =B.affluensCasey;A.castaneipennisMannerheim =A.glenoranaCasey =B.rotundicollisCasey =B.mannerheimiCasey =B.acomanaCasey =B.insulanaCasey =B.concurrensCasey =B.eludensCasey =A.oregonaHatch;A.quadrataSharp =B.uvidulaCasey =A.sparsicollisBernhauer. Subg.CALOCHARA,A.rubripennisCasey =A.rubripesBlatchley =A.wallawallaeHatch. Subg.ALEOCHARA,A.centralisSharp =A.stygialisSharp;A.gracilicornisBernhauer =A.kansanaCasey =A.pleuralisCasey =A.americanaCasey =A.ellipsicollisCasey;A.lustricaSay =A.pauperSharp =A.serrataSharp =A.texanaCasey =A.fusicornisCasey =A.sternalisCasey =A.algonquinaCasey =A.medialisCasey;A.tahoensisCasey =A.postpictaCasey =A.montanicaCasey;A.thoracicaCasey =A.collusorCasey. Subg.ECHOCHARA,A.lucifuga(Casey) =A.cavicola(Garman). Subg.EMPLENOTA,A.littoralis(Mäklin) =A.maritima(Casey) =P.arenariaCasey =E.quadriferCasey =E.trilimbataCasey =E.longicepsCasey. Subg.MASEOCHARA,A.validaLeConte =M.ponderosaCasey =M.robustaSharp =M.ruficaudaCasey;A.opacella(Sharp) =M.hogeiSharp =M.decipiensCasey;A.depressa(Sharp) =M.puberulaCasey =M.basalisCasey =M.mustaCasey.Ninety-three lectotypes and three neotypes are designated (neotypes are designated for:C.caviolaGarman,A.lustricaSay, andA.vernaSay).Keys to subgenera and species are provided. All species are described, each illustrated with line drawings and scanning electron microscope photomicrographs, and all available bionomic and distributional data are given. Emphasis was put on host records of thoseAleocharaspecies which may be used in biological control of some pest species of Diptera. The systematics and phylogeny of the subgenera and zoogeography of species are discussed.A checklist of NearcticAleocharaand a table listing the known host records for some species is added.