A revision of the genus Pachyrhinus Schӧnherr 1823 (Coleoptera: Curculionidae, Entiminae) in the Nearctic Region

The North American species of the broad-nosed weevil genus Pachyrhinus Schönherr 1823 (Coleoptera: Curculionidae, Entiminae) are revised. Three species of Pachyrhinus are here recognized in North America: P. elegans (Couper 1865), P. californicus (Horn 1876), and P. cinereus (Casey 1888). Pachyrhinus lateralis (Casey 1888) and P. miscix (Fall 1901) are here designated as synonyms of P. elegans. Pachyrhinus crassicornis (Casey 1888) and P. albidus (Fall 1901) are here designated synonyms of P. cinereus (Casey 1888) The previously proposed synonymy of P. ferrugineus (Casey 1888) with P. californicus was confirmed. This revision includes detailed images of diagnostic characters as well as scanning electron micrographs of scale morphology for all species. A key to the Nearctic species of Pachyrhinus is provided. All Nearctic species of Pachyrhinus are considered minor pests of Pinus spp. [Pinaceae].

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Revision of Diphaulacosoma Jacoby, an endemic flea beetle genus from Madagascar, with description of three new species (Coleoptera: Chrysomelidae, Galerucinae, Alticini)

Fragmenta Entomologica ◽

10.4081/fe.2016.181 ◽

2016 ◽

Vol 48 (2) ◽

pp. 143 ◽

Cited By ~ 3

Author(s):

Maurizio Biondi ◽

Paola D'Alessandro

Keyword(s):

New Species ◽

Electron Micrographs ◽

Flea Beetle ◽

Taxonomic Revision ◽

Scanning Electron Micrographs ◽

Diagnostic Characters ◽

New Material ◽

Three New Species ◽

Scanning Electron

A taxonomic revision of the flea beetle genus Diphaulacosoma Jacoby, endemic to Madagascar, is provided. This genus includes seven species of which three are new to science: D. elegans sp. n., D. jenisi sp. n., and D. nigroscutis sp. n. An updated catalogue including new material, new faunistic records, distributions, chorotypes, and ecological notes is supplied. Lectotypes for Diphaulacosoma laevipenne Jacoby, D. bicolor (Weise) and D. scutellare (Weise) are designated. Additionally, the revision comprises a key for the identification of all seven species considered, habitus photos, and microscope and scanning electron micrographs of diagnostic characters, including aedeagus and spermatheca.

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Revision of Spergularia (Caryophyllaceae) in Australia

Australian Systematic Botany ◽

10.1071/sb08015 ◽

2008 ◽

Vol 21 (4) ◽

pp. 251

Author(s):

Laurie G. Adams ◽

Judy G. West ◽

Kirsten J. Cowley

Keyword(s):

Electron Micrographs ◽

Field Studies ◽

Morphological Characters ◽

Scanning Electron Micrographs ◽

Seed Shape ◽

Herbarium Material ◽

Diagnostic Characters ◽

Surface Features ◽

Scanning Electron ◽

Eleven Species

A revision of the Australian taxa of the genus Spergularia (Caryophyllaceae) on the basis of herbarium material, field studies and analysis of morphological characters necessitates realignment of some taxa and application of some neglected names, clarifying circumscription and understanding of the species of this genus. Eleven species are here recognised, with five considered indigenous, Spergularia nesophila and S. diandroides described as new and S. tasmanica transferred to Spergularia from Lepigonum. Fruits and seeds provide compelling diagnostic characters in this genus and are used in supplementary dichotomous and tabular diagnostic keys. Scanning electron micrographs (SEMs) illustrate key seed shape and surface features.

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The spores of Dryopteris filix-mas and related taxa in North America

Canadian Journal of Botany ◽

10.1139/b74-246 ◽

1974 ◽

Vol 52 (8) ◽

pp. 1923-1926 ◽

Cited By ~ 8

Author(s):

D. M. Britton ◽

A. C. Jermy

Keyword(s):

North America ◽

Electron Micrographs ◽

North American ◽

Scanning Electron Micrographs ◽

Spore Morphology ◽

European Species ◽

Scanning Electron

Scanning electron micrographs of spores of Dryopteris filix-mas (L.) Schott, D. abbreviata (DC.) Newman, D. caucasica Fraser-Jenkins & Corley, D. arguta (Kaulf.) Watt, D. marginalis (L.) Gray, and D. fragrans (L.) Schott var. remotiuscula Komarov are presented. North American D. filix-mas is compared with the European species and the origin of this tetraploid is discussed using the available evidence from spore morphology, cytogenetics, and chromatography.

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NEW SPECIES OF CARDIASTETHUS FIEBER AND MELANOCORIS CHAMPION, AND NEW RECORDS OF EUROPEAN ACOMPOCORIS REUTER AND TEMNOSTETHUS FIEBER IN CANADA (HETEROPTERA: ANTHOCORIDAE)

The Canadian Entomologist ◽

10.4039/ent109243-2 ◽

1977 ◽

Vol 109 (2) ◽

pp. 243-248 ◽

Cited By ~ 2

Author(s):

Leonard A. Kelton

Keyword(s):

United States ◽

New Species ◽

North America ◽

Electron Micrographs ◽

New Records ◽

Western United States ◽

Scanning Electron Micrographs ◽

First Time ◽

Scanning Electron ◽

Male Genital

AbstractCardiastethus borealis n. sp. is described from Canada, and Melanocoris longirostris n. sp. from Canada and western United States. Two species described from Europe, Acompocoris pygmaeus (Fallen) and Temnostethus gracilis Horvath, are recorded for the first time from North America. Adults and male genital claspers are illustrated and scanning electron micrographs of their osteolar canals are included.

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REVISION OF NORTH AMERICAN AGABUS LEACH (COLEOPTERA: DYTISCIDAE): INTRODUCTION, KEY TO SPECIES GROUPS, AND CLASSIFICATION OF THE AMBIGUUS-, TRISTIS-, AND ARCTICUS-GROUPS

The Canadian Entomologist ◽

10.4039/ent121861-10 ◽

1989 ◽

Vol 121 (10) ◽

pp. 861-919 ◽

Cited By ~ 17

Author(s):

D.J. Larson

Keyword(s):

North America ◽

North American ◽

North American Species ◽

Key To Species ◽

Diagnostic Characters ◽

Ecological Information ◽

The North ◽

Species Groups ◽

Diving Beetle

AbstractThe first of a planned series of papers revising the Nearctic species of the predaceous diving beetle genus, Agabus Leach, is presented. The genus is defined in the broad sense of Sharp (1882) and Fall (1922). The North American species are divided into species groups and diagnostic characters for group recognition are summarized in a key. Assignment of species to these groups is indicated in a checklist of North American species. The ambiguus-, tristis-, and arcticus-groups are defined, their relationships discussed, and included species revised. The ambiguus-group, which is restricted to North America, contains the species A. ambiguus (Say), A. strigulosis (Crotch), A. erythropterus (Say), A. austinii Sharp, and A. klamathensis sp.nov. The tristis-group, which has a Holarctic distribution, contains two species in North America, A. tristis Aubé and A. leptapsis (LeConte). The Holarctic arcticus-group is represented by A. arcticus (Paykull) and A. anthracinus (Mannerheim) in North America. For each species, patterns of variation are described, the North American distributions mapped, and ecological information summarized.

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The eriophyid mite Aculops ailanthi Lin, Jin, & Kuang, 1997 (Acariformes: Prostigmata: Eriophyidae) from tree-of-heaven in the United States – new state records and morphological observations

Acarologia ◽

10.24349/acarologia/20214421 ◽

2021 ◽

Vol 61 (1) ◽

pp. 121-127

Author(s):

Michael J. Skvarla ◽

Ron Ochoa ◽

Andrew Ulsamer ◽

James Amrine

Keyword(s):

United States ◽

North America ◽

Electron Micrographs ◽

The United States ◽

Ailanthus Altissima ◽

Scanning Electron Micrographs ◽

Tree Of Heaven ◽

And Control ◽

Scanning Electron ◽

Female Genital

We report Aculops ailanthi Lin, Jin, and Kuang, 1997 (Acariformes: Trombidiformes: Prostigmata: Eriophyidae) from Pennsylvania and West Virginia, USA; present the first scanning electron micrographs of the species in North America and discuss morphological observations that clarify features observed in slide-mounted specimens, such as the number ridges on female genital flaps; and briefly discuss symptoms and control of an A. ailanthi infestation on greenhouse-grown tree-of-heaven, Ailanthus altissima (Mill.) Swingle (Sapindales: Simaroubaceae).

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Revision of the Afrotropical genus Tritonus Mulsant (Coleoptera: Hydrophilidae)

Zootaxa ◽

10.11646/zootaxa.1855.1.2 ◽

2008 ◽

Vol 1855 (1) ◽

pp. 41 ◽

Cited By ~ 3

Author(s):

ANDREW EDWARD Z. SHORT

Keyword(s):

New Species ◽

Electron Micrographs ◽

Endemic Species ◽

New Records ◽

Scanning Electron Micrographs ◽

Monotypic Genus ◽

Key To Species ◽

Diagnostic Characters ◽

First Time ◽

Scanning Electron

The previously monotypic genus Tritonus Mulsant is revised. Six new species are described from Madagascar, from which the genus is also recorded for the first time: T. complanatus sp.n., T. crenulatus sp.n., T. madagascarensis sp.n., T. riambavy sp.n., T. riana, sp.n., and T. steineri sp.n. New records for the previously described and Mauritian-endemic species Tritonus cribratus (Mulsant) are given. All known species occur in hygropetric habitats, consistent with the biology of other members of the Oocyclus-genus group of the tribe Laccobiini to which Tritonus belongs. A key to species, aedeagal illustrations, and scanning electron micrographs of diagnostic characters are provided.

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Three newly recognized cheilostomate bryozoans from the British sea area

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315498001088 ◽

1999 ◽

Vol 79 (5) ◽

pp. 917-921 ◽

Cited By ~ 3

Author(s):

P.J. Hayward ◽

K.B. Hansen

Keyword(s):

Electron Micrographs ◽

First Record ◽

Scanning Electron Micrographs ◽

East Atlantic ◽

The Third ◽

North East ◽

The North ◽

Sea Area ◽

Selection Of ◽

Scanning Electron

Three species of cheilostomate Bryozoa are described, and illustrated by scanning electron micrographs. One was previously poorly characterized and is here stabilized by the selection of a neotype; a second is recognized as distinct from an Arctic congener while the third is entirely new to science and represents the first record of the genus Codonellina from the north-east Atlantic.

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Illustrated key to genera and catalogue of Mymaridae (Hymenoptera) in America north of Mexico

Zootaxa ◽

10.11646/zootaxa.4773.1.1 ◽

2020 ◽

Vol 4773 (1) ◽

pp. 1-411 ◽

Cited By ~ 1

Author(s):

JOHN T. HUBER ◽

JENNIFER D. READ ◽

SERGUEI V. TRIAPITSYN

Keyword(s):

New Species ◽

Electron Micrographs ◽

North American ◽

Valid Species ◽

Scanning Electron Micrographs ◽

Undescribed Species ◽

Identification Keys ◽

The North ◽

Three New Species ◽

Scanning Electron

Identification keys for females, and for males where known, to the 39 genera and 11 subgenera of Mymaridae in America north of Mexico are given. The genera are illustrated with over 1010 photographs and/or scanning electron micrographs. The 202 currently named and valid species reported from America north of Mexico are catalogued. Reliable host records are reported for 16 genera and almost 90 species from rearings in the region. The five genera represented by more than one subgenus in the region are: Anagrus Haliday, Anaphes Haliday, Erythmelus Enock, Kalopolynema Ogloblin, and Polynema Haliday. Five other genera are represented only by unnamed and possibly undescribed species. About 1000 literature references, mainly the North American ones, are listed. Three new species are described: Callodicopus floridanus Huber, sp. n., Neostethynium americanum Huber, sp. n., and Stephanocampta xanthogaster Huber, sp. n. Cosmocomoidea marilandica (Girault), stat. rev., is placed in synonymy under C. dolichocerus (Ashmead). Platypatasson Ogloblin is given subgeneric status as Platystethynium (Platypatasson Ogloblin), stat. rev. Corrections and additions to the mymarid fauna of Mexico by Guzmán-Larralde et al. (2017) are also given.

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Global review of some Anthroleucosomatidae (Diplopoda: Chordeumatida) with description of a new millipede genus from the Balkan Peninsula

The Canadian Entomologist ◽

10.4039/n06-062 ◽

2007 ◽

Vol 139 (4) ◽

pp. 478-488

Author(s):

B.P.M. Ćurčić ◽

S.E. Makarov ◽

V.T. Tomić ◽

B.M. Mitić

Keyword(s):

North America ◽

Balkan Peninsula ◽

Scanning Electron Micrographs ◽

Monotypic Genus ◽

Related Genus ◽

The West ◽

The Third ◽

The North ◽

Species Specific ◽

Scanning Electron

AbstractThe millipede Perunosoma trojanicagen. nov., sp. nov. is described on the basis of specimens from the Prekonoška Pećina Cave in southeast Serbia. Scanning electron micrographs of the gonopods and legs are presented. Comparative photomicrographs of the closely related genus Serbosoma Ćurčić and Makarov, 2000 are also presented. The central part of the anterior gonopods in these genera can be species-specific and provide grounds for initial recognition of species. The Anthroleucosomatidae occupy three disjunct areas globally: one on the west coast of North America, the second in Asia, and the third in Europe. The North American anthroleucosomatid fauna is composed of one monotypic genus, while the Asian one includes six genera with seven species and the much more diverse European anthroleucosomatids include 14 genera with 39 species.

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