Download Free Lasioglossum Dialictus Semicaeruleum Cockerell 1895 Hymenoptera Halictidae In Maryland A Disjunct Population In Eastern North America Book in PDF and EPUB Free Download. You can read online Lasioglossum Dialictus Semicaeruleum Cockerell 1895 Hymenoptera Halictidae In Maryland A Disjunct Population In Eastern North America and write the review.

Since 2004, three specimens of Lasioglossum (Dialictus) semicaeruleum (Cockerell, 1895) (Hymenoptera: Halictidae) have been collected in Maryland. Other than three specimens from Wisconsin, there are no additional records of this western United States species known east of the Mississippi River. I document the three Maryland records and offer possible scenarios of how the specimens could have arrived in Maryland. ZooBank registration. urn:lsid:zoobank.org:pub:6E756528-4CFD-4DFD-B4D7-468C234B2683
The black species of weak-veined Lasioglossum (or Hemihalictus series) in eastern North America are revised to clarify their taxonomy and nomenclature and to facilitate identification. A subgeneric classification based upon available phylogenetic data is applied. Lasioglossum (Sphecodogastra) is applied more broadly than any previous usage to include many species typically classified as L. (Evylaeus). The subgenus L. (Evylaeus) is retained but applied narrowly in agreement with phylogenetic results. Lasioglossum (Hemihalictus) has historically been considered monotypic but is here applied to many species of L. (Dialictus) sensu lato (equivalent to the carinaless L. (Evylaeus) of some authors). Usage of L. (Dialictus) is restricted primarily to species with metallic integument. Additional subgeneric synonymies for extralimital taxa are formalized and discussed. Descriptions are provided for each species with a synonymic list, diagnosis, and notes on taxonomy and biology. The recently revised Onagraceae-specialist species of L. (Sphecodogastra) are given abbreviated treatments. Notes on available DNA barcode data are given, with diagnostic characters supplied for closely related species. One new species is described: L. (Sphecodogastra) seillean Gibbs and Packer and the males of L. fedorense (Crawford) and L. pectinatum (Robertson) are described for the first time. The following three new synonymies are proposed: Lasioglossum (Hemihalictus) sopinci (Crawford), senior subjective synonym of Evylaeus bradleyi Mitchell; Lasioglossum (Hemihalictus) macoupinense (Robertson), senior subjective synonym of Halictus divergens Lovell; and Lasioglossum (Hemihalictus) inconditum (Cockerell), senior subjective synonym of Halictus tracyi Cockerell. Lasioglossum inconditum is here considered to be distinct from the Palaearctic species L. rufitarse (Zetterstedt). A lectotype is designated for Halictus quebecensis Crawford. We present the first record of L. lustrans (Cockerell) and L. swenki (Crawford) in Canada and the first record of L. lusorium (Cresson) east of the Mississippi River. Updated keys to species are provided for the fauna of eastern North America.
American Museum Of Natural History, V112.
Algal species and in particular desmids are important indicators of water quality. Because of their preferential occurrence in vulnerable habitats, desmids lend themselves well to figuring in conservation studies. The present flora describes all desmid taxa known from the Netherlands and adjacent lowland areas: over 500 species and more than 150 additional varieties. Because of the predominantly cosmopolitan nature of most species the flora may also be of use outside this geographic region. The enclosed CD-ROM offers general information on desmid biology as well as a selection of species that are discussed in more detail. Ecological data, both on separate species and desmid communities, enable a characterization of the habitat sampled. Volume 1: Desmids of the Lowlands - Mesotaeniaceae and Desmidiaceae of the European Lowlands Volume 2: European Flora of the desmid genera Staurastrum and Staurodesmus
Life in the Chesapeake Bay is the most important book ever published on America's largest estuary. Since publication of the first edition in 1984, tens of thousands of naturalists, boaters, fishermen, and conservationists have relied on the book's descriptions of the Bay's plants, animals, and diverse habitats. Superbly illustrated and clearly written, this acclaimed guide describes hundreds of plants and animals and their habitats, from diamondback terrapins to blue crabs to hornshell snails. Now in its third edition, the book has been updated with a new gallery of thirty-nine color photographs and dozens of new species descriptions and illustrations. The new edition retains the charm of an engaging classic while adding a decade of new research. This classic guide to the plants and animals of the Chesapeake Bay will appeal to a variety of readers—year-round residents and summer vacationers, professional biologists and amateur scientists, conservationists and sportsmen.
More than 100 mushrooms in the genus Tricholoma have been reported in North America. Most are relatively large, showy mushrooms that grow on the ground near many species of temperate forest trees, both hardwoods and conifers. They typically fruit from late summer through early winter or even into spring in warmer areas. Some are fine edibles, including the matsutake. Others are inedible or even poisonous. Filling the gap between technical publications and the limited representation of Tricholomas in general mushroom field guides, this book is the first comprehensive guide to North American Tricholomas. It contains more than 170 of the best documentary photographs available, often with more than one image of a species to illustrate the dramatic variation exhibited by many Tricholomas. The species descriptions provide extensive identification information including scientific and common names, macroscopic and microscopic features, occurrence/habit, edibility, and a comment section that addresses such things as synonomy, comparisons with similar species, varietial differences, explanations of species' epithets, and other useful or interesting information. In addition, the authors provide a general introduction to Tricholomas that discusses identification features, ecology, simple chemical tests (for identification), and how to use the keys provided in this book.
Spiders are among the most diverse groups of terrestrial invertebrates, yet they are among the least studied and understood. This first comprehensive guide to all 68 spider families in North America beautifully illustrates 469 of the most commonly encountered species. Group keys enable identification by web type and other observable details, and species descriptions include identification tips, typical habitat, geographic distribution, and behavioral notes. A concise illustrated introduction to spider biology and anatomy explains spider relationships. This book is a critical resource for curious naturalists who want to understand this ubiquitous and ecologically critical component of our biosphere.
A comprehensive guide to Michigan’s wild-growing seed plants