Works in United States of America

In this study the aim was to resolve the taxonomy of several species of Argyria Hübner (Pyraloidea, Crambinae) with previously unrecognised morphological variation. By analysing t…

This revision is based on sampling efforts over the past three decades in the southern Appalachian Mountains which have provided Nesticus (Araneae, Nesticidae) collections of appr…

The microcaddisfly (Trichoptera: Hydroptilidae) fauna is catalogued from a review of more than 1,300 literature citations through the end of 2020 to include 2,665 currently recogn…

Thirteen new species of Euconnus Thomson (Staphylinidae: Scydmaeninae: Glandulariini) are described from the southern Appalachian Mts, USA: Euconnus megalops sp. nov., E. vexillus…

A new long-legged fly species, Chrysotus soya sp. nov. (Diptera: Dolichopodidae), is described and illustrated from specimens collected in soybean fields near Brookings, South Dak…

Gymnoscirtetes is endemic to the southeastern portion of the North American Coastal Plain and previously comprised two species: G. pusillus Scudder, 1897 and G. morsei Hebard, 191…

The rarely collected North American endemic genus Proctorus (Coleoptera, Curculionidae, Ellescini) has hitherto contained two described species, P. armatus LeConte, 1876 and P. de…

Augochloropsis and other shiny green Halictinae have had various taxonomic issues and are often misidentified. One prevailing taxonomic issue is that Augochloropsis metallica (Fab…

The Nearctic species of Saropogon Loew, 1847 north of Mexico are reviewed, with 19 species recognized and one described as new: Saropogon pyrodes sp. nov. from Arizona. This previ…

A small bivalve mollusk previously only known from the Pleistocene of Los Angeles County has recently been found living intertidally near Santa Barbara, California. The bivalve ha…

Alboglossiphonia pallida (Verrill, 1872) comb. nov. is resurrected and redescribed based on morphological and molecular data from specimens of the type locality (New Haven County,…

We describe five new Neotropical species of Ripersiella living in association with Acropyga ants: R. campensis sp. nov., R. illicians sp. nov., R. montanae sp. nov., R. pediandens…

Herein we describe two new species of Paruroctonus (Werner 1934) from California: Paruroctonus soda sp. nov. from the Soda Lake playa at the center of the Carrizo Plain in San Lui…

The caddisfly assemblages of six lakes and 12 1st–4th order streams of the Huron Mountains of northern Upper Michigan (USA) were sampled monthly with ultraviolet lights during Jun…

This paper reports the discovery of a small population of sponges in the Pigeon River of eastern Tennessee, USA, which were morphologically distinct from Spongillida of North Amer…

The Neotropical members formerly included in Earinus Wesmael, 1837 are transferred to a new genus, Chilearinus Sharkey gen. nov. Presently three Nearctic species of Earinus are re…

Although many new species of the millipede genus Nannaria Chamberlin, 1918 have been known from museum collections for over half a century, a systematic revision has not been unde…

Retusigaster Dangerfield, Austin & Whitfield, 1999 is a genus of the subfamily Cardiochilinae Ashmead, 1900 and exhibits high species richness in the New World. Eight species of t…

Hypochilus is a relictual lineage of Nearctic spiders distributed disjunctly across the United States in three montane regions (California, southern Rocky Mountains, southern Appa…

A morphological and molecular study of 17 Cylindrotomidae species revealed that the two subspecies of Cylindrotoma distinctissima, the Nearctic C. americana Osten Sacken, 1865, st…

Тhe agromyzid (Diptera: Schizophora: Agromyzidae) fauna of America north of Mexico is described in the first part of this publication, including a genus key and discussions on mor…

Five Hawaiian species of Paratachys Casey are revised, including four newly described: Paratachys terryli from Kauai; P. perkinsi from Moloka‘i; P. haleakalae from Maui; and P. aa…

The phylogeny of the carabid beetle supertribe Nebriitae is inferred from analyses of DNA sequence data from eight gene fragments including one nuclear ribosomal gene (28S), four …

A long tradition of separate Nearctic and Palaearctic taxonomic studies of the diverse aleocharine rove beetles (Coleoptera: Staphylinidae) has obscured the recognition of Holarct…

Gnorimosphaeroma oregonense (Dana, 1852) is revised, a male neotype is designated, photographed, and illustrated; the species occurs from Vancouver British Columbia to the central…

Emplectonema viride Stimpson, 1857, a barnacle predator, is one of the most common and conspicuous intertidal nemerteans found along the West Coast of North America from Alaska to…

Millipedes in the family Xystodesmidae (Polydesmida) are often referred to as “colorful, flat-backed millipedes” for their bright aposematic coloration and tendency to form Müller…

This study documents a comprehensive taxonomic treatment of the New World Ummidia species. At the onset of this work the genus comprised 27 species and one subspecies with a cosmo…

The North American fauna of Drymeia Meigen was studied. Four new species are described (Drymeia hucketti sp. nov., Drymeia ponti sp. nov., Drymeia vockerothi sp. nov., Drymeia woo…

Two new species of blind ground beetles are described from the southern United States. One species, Anillinus relictus sp. nov. (type locality: E of Oneonta, Blount County, Alabam…

Two new species of Bembidion are described from river shores in North America. One, Bembidion mimbres sp. nov., from the Gila River watershed in the lands of the Mimbres culture i…

The systematics and taxonomy of the tropical Asian jumping spiders of the tribe Baviini is reviewed, with a molecular phylogenetic study (UCE sequence capture, traditional Sanger …

The freshwater harpacticoid Psammonitocrella kumeyaayi sp. nov. from the Nearctic Region (California; USA) is proposed. The position of the genus within Harpacticoida and its rela…

The lamprey genus Lethenteron Creaser & Hubbs, 1922 is widespread across Eurasia and North America, but the number and distribution of its constituent species is not firmly establ…

The nymph of Cloeodes danta sp. nov. is described from male and female nymphs collected from highland streams in the Caribbean Slope of the Costa Rica Central Volcanic Mountain Ra…

A new species of the parasitic wasp Coptera Say was previously distinguished from other species via correspondence between ecological (host) differences and DNA barcodes. A descri…

The bumble bee (Hymenoptera, Apidae, Bombini, Bombus Latreille) fauna of the Nearctic and Palearctic regions are considered well known, with a few species occurring in both region…

The new genus Aspilanta gen. n. is described to harbour Nearctic heliozelid moths with reduced venation, previously placed in Antispila Hübner, 1825, with type species Antispila o…

Ash-free dry mass (AFDM) values are presented for the adult stage of 63 caddisfly species commonly found throughout the northcentral US. Weights ranged from 0.01 mg for the smalle…

A new species of cicinnine Mimallonidae, Cicinnus chambersi sp. nov., is described from the Sky Islands Region of southern Arizona, USA. The new species is closely related to C. m…

The systematics of sitticine jumping spiders is reviewed, with a focus on the Palearctic and Nearctic regions, in order to revise their generic classification, clarify the species…

Stamnodes fergusoni sp. nov. occurs from extreme southeastern Arizona through southern New Mexico east into western Texas, USA. Identity of the new species can be reliably determi…

In ants, social parasitism is an umbrella term describing a variety of life-history strategies, where a parasitic species depends entirely on a free-living species, for part of or…

The non-biting midges, Chironomidae (Diptera), are dominant components of most freshwater ecosystems. Many chironomids construct tubes or cases as larvae out of various materials …

Freshwater hairworms (class Gordiida) are members of the phylum Nematomorpha that use terrestrial arthropods as definitive hosts but reside as free-living adult worms in rivers, l…

Monterey Bay National Marine Sanctuary is a federal, marine protected area located off the central coast of California, USA. Understanding biodiversity, and how it is changing, is…

Three undescribed species of Heteromastus Eisig, 1887 were collected from intertidal to sublittoral habitats in western and southern waters of Korea. Heteromastus namhaensis sp. n…

The High Arctic bumble bee fauna is rather poorly known, while a growing body of recent molecular research indicates that several Arctic species may represent endemic lineages wit…

The flat grass scale genus Nipponaclerda comprises four species, native to Central and East Asia. Nipponaclerda biwakoensis has been introduced to the United States and is conside…

Alcyonacean (Gorgonian) coral species from Holaxonia (not previously reviewed in this three-part work), family Plexauridae, as well as species in Calcaxonia were reviewed. Specime…