A REVISION OF THE GENUS HOPLANDRIA KRAATZ OF AMERICA NORTH OF MEXICO (COLEOPTERA: STAPHYLINIDAE, ALEOCHARINAE)

1989 ◽  
Vol 121 (S150) ◽  
pp. 3-59 ◽  
Author(s):  
François Génier
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Junior Synonym ◽  
Line Drawings ◽  
Generic Status ◽  
Number Of Species ◽  
Diagnostic Characteristics ◽  
Species Groups ◽  
Species Grouping ◽  
Scanning Electron

AbstractA revision of the genus Hoplandria of America north of Mexico is presented. Four subgenera are recognized, of which two (Genosema Notman and Lophomucter Notman) previously were given generic status and one (Arrhenandria) is here newly described. Twelve species are defined, of which eight are described as new: H. alternans, H. isabellae, H. kisatchie, H. klimaszewskii, H. oconee, H. okaloosa, H. sanbornei, and H. smetanai. The species are arranged according to their relationships into species groups within the subgenus Lophomucter, where seven species are assigned. For the remaining subgenera species grouping was not possible due to the smaller number of species. The following synonymies are confirmed (the first specific name is valid): Subg. Hoplandria, H. lateralis (Melsheimer) = H. ochracea Kraatz = H. texana Casey = H. arizonica Casey = H. carinata Casey; Subg. Arrhenandria, H. laeviventris Casey = H. acudentata Dury. The species Genosema sexualis Notman is here synonymized with H. pulchra Kraatz. Hoplandria brittoni Casey was previously regarded as a synonym of H. lateralis (Melsheimer); it is now considered as a junior synonym of Platandria carolinae Casey. Lectotypes are designated for Gyrophaena lateralis Melsheimer, Hoplandria arizonica Casey, H. carinata Casey, H. laeviventris Casey, H. ochracea Kraatz, H. pulchra Kraatz, and H. texana Casey. Keys to subgenera and species are provided. All species are described, diagnostic characteristics of each are illustrated with line drawings and scanning electron microscope photomicrographs, and all available bionomic and distributional data are given. The morphology, systematics, and phylogeny of the subgenera and certain species are discussed, and a checklist of Nearctic species is added.

A REVISION OF THE GENUS ALEOCHARA GRAVENHORST OF AMERICA NORTH OF MEXICO (COLEOPTERA: STAPHYLINIDAE, ALEOCHARINAE)

1984 ◽  
Vol 116 (S129) ◽  
pp. 3-211 ◽  
Author(s):  
Jan Klimaszewski
Keyword(s):  
Biological Control ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Pest Species ◽  
Line Drawings ◽  
Species Groups ◽  
Scanning Electron

AbstractA revision of the genus Aleochara of 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. bimaculata Gravenhorst = B. deserticola Casey = B. innocua Casey = B. obsolescens Casey = B. recta Casey; A. notula Erichson = A. duplicata Erichson = B. nanella Casey = B. nitidicollis Casey; A. suffusa (Casey) = B. acuminata Casey = A. verna brundini Bernhauer; A. verna Say = A. alticola Sharp. Subg. XENOCHARA, A. lacertina Sharp = B. salicola Casey = B. imbricata Casey = B. idonea Casey = A. densiventris Bernhauer; A. sallaei Sharp = A. torquata Sharp; A. puberula Klug = B. bipartita Casey; A. fumata Gravenhorst = A. languida Sachse = B. defecta Casey = B. affluens Casey; A. castaneipennis Mannerheim = A. glenorana Casey = B. rotundicollis Casey = B. mannerheimi Casey = B. acomana Casey = B. insulana Casey = B. concurrens Casey = B. eludens Casey = A. oregona Hatch; A. quadrata Sharp = B. uvidula Casey = A. sparsicollis Bernhauer. Subg. CALOCHARA, A. rubripennis Casey = A. rubripes Blatchley = A. wallawallae Hatch. Subg. ALEOCHARA, A. centralis Sharp = A. stygialis Sharp; A. gracilicornis Bernhauer = A. kansana Casey = A. pleuralis Casey = A. americana Casey = A. ellipsicollis Casey; A. lustrica Say = A. pauper Sharp = A. serrata Sharp = A. texana Casey = A. fusicornis Casey = A. sternalis Casey = A. algonquina Casey = A. medialis Casey; A. tahoensis Casey = A. postpicta Casey = A. montanica Casey; A. thoracica Casey = A. collusor Casey. Subg. ECHOCHARA, A. lucifuga (Casey) = A. cavicola (Garman). Subg. EMPLENOTA, A. littoralis (Mäklin) = A. maritima (Casey) = P. arenaria Casey = E. quadrifer Casey = E. trilimbata Casey = E. longiceps Casey. Subg. MASEOCHARA, A. valida LeConte = M. ponderosa Casey = M. robusta Sharp = M. ruficauda Casey; A. opacella (Sharp) = M. hogei Sharp = M. decipiens Casey; A. depressa (Sharp) = M. puberula Casey = M. basalis Casey = M. musta Casey.Ninety-three lectotypes and three neotypes are designated (neotypes are designated for: C. caviola Garman, A. lustrica Say, and A. verna Say).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 those Aleochara species 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 Nearctic Aleochara and a table listing the known host records for some species is added.

A redescription of Metopa species (Amphipoda, Stenothoidae) based on the type material. 1. Zoological Museum, Copenhagen (ZMUC)

Zootaxa ◽  
2009 ◽  
Vol 2093 (1) ◽  
pp. 1-36 ◽  
Author(s):  
ANNE HELENE S. TANDBERG ◽  
WIM VADER
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
The Other ◽  
Taxonomic Position ◽  
Type Material ◽  
Zoological Museum ◽  
Type Specimens ◽  
Line Drawings ◽  
New Material ◽  
Scanning Electron

This paper presents redescriptions of amphipods in the genus Metopa (Stenothoidae) in the type-collections of the Zoological Museum of Copenhagen. For Metopa clypeata and M. abyssalis we redescribe the type-specimens, for M. glacialis and M. groenlandica the redescriptions are based on new material and checked against the type-specimens. For all except M. abyssalis a combination of new line drawings and scanning electron microscope (SEM) pictures is provided, for M. abyssalis, line drawings only. A summary of the other species having earlier been designed to Metopa in the Copenhagen collections is given, with a list of their present taxonomic position.

Asialeyrodes nicobarica sp. nov. (Hemiptera: Aleyrodidae) from the Nicobar Island, located in the Indian part of the Sundaland hotspot, and two new synonymies

Zootaxa ◽  
2019 ◽  
Vol 4674 (4) ◽  
pp. 439-450 ◽  
Author(s):  
ANIL KUMAR DUBEY
Keyword(s):  
Electron Microscope ◽  
New Species ◽  
Scanning Electron Microscope ◽  
Nicobar Island ◽  
Congeneric Species ◽  
Line Drawings ◽  
Scanning Electron

A new whitefly species, Asialeyrodes nicobarica Dubey, sp. nov. found infesting Neolamarckia cadamba (Roxb.) (Rubiaceae) on the Nicobar Island, located in the Indian part of the Sundaland hotspot, is described here. Puparia of the new species differ from all of its congeners in shape, and in having the median tubercles on abdominal segments I–VI, a posteriorly notched vasiform orifice and a broad caudal furrow filled with small linear striations. Asialeyrodes menoni Meganathan and David syn. nov and A. tuberculata Pushpa and Sundararaj syn. nov are synonymised with A. indica Sundararaj and David. Icfrealeyrodes splendens (Meganathan & David) comb. nov. is proposed for Asialeyrodes splendens Meganathan and David. Illustrations include habitus, line drawings, holotype images of the new species and A. tuberculata, and scanning electron microscope photomicrographs. Puparial keys differentiating Asialeyrodes Corbett from allied Indian Aleyrodinae genera and to puparia of species currently included in Asialeyrodes in India are provided. Also, the placement of a non-congeneric species, Rhachisphora spherica Sundararaj and Dubey in Asialeyrodes is discussed. 

scholarly journals New whitefly genus and species (Hemiptera, Aleyrodidae) breeding on Orophea katschallica Kurz in India

2021 ◽  
Vol 787 ◽  
Author(s):  
Anil Kumar Dubey
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Type Species ◽  
New World ◽  
New Genus ◽  
Andaman Islands ◽  
New Host ◽  
Old World ◽  
Line Drawings ◽  
Scanning Electron

A new whitefly genus, Rudisculptus gen. nov. is described for its type species Rudisculptus caudalis gen. et sp. nov. feeding on Orophea katschallica Kurz (Annonaceae) from the Andaman Islands, India. Rudisculptus gen. nov. is similar to the New World genus, Aleuropleurocelus Drews & Sampson, 1956 and an Old World genus, Tetralicia Harrison, 1917 in pupal morphology, but differs in having the first abdominal setae, thoracic tracheal pores, caudal furrow, differentiated cephalothorax in slide mounts, the lingula excluded beyond the vasiform orifice. The new genus also differs from an Old World genus, Regiominutus Dubey, 2021 in habitus, pattern of wax secretion, shape, size, cuticle colour, raised lateral margin, extension of segment sutures and the lingula reaching outside the margin of the vasiform orifice, and in having the thoracic tracheal folds. Orophea katschallica is recorded as a new host plant for the whiteflies. Images of puparial habitus and types, line drawings and scanning electron microscope (SEM) microphotographs are provided.

Revision of the genera of the tribe Stigmoderini (Coleoptera : Buprestidae) with a discussion of Phylogenetic relationships

1989 ◽  
Vol 3 (3) ◽  
pp. 291 ◽  
Author(s):  
JA Gardner
Keyword(s):  
Electron Micrographs ◽  
Phylogenetic Relationships ◽  
High Weight ◽  
Accessory Gland ◽  
Scanning Electron Micrographs ◽  
Line Drawings ◽  
Generic Status ◽  
Species Groups ◽  
Scanning Electron

The tribe Stigmoderini is revised: the highly derived ovipositor provides evidence that the tribe is monophyletic. A scheme of evolution of the buprestid ovipositor is postulated. The genera of Stigmoderini are delineated and relationships between them are analysed using traditional Hennigian methods. Synapomorphic characters which suggest conflicting relationships are examined, the probability of homoplasy assessed, and a cladogram constructed which best fits the available data. The female accessory gland, a structure not recorded previously in any buprestid, is accorded high weight and supports the monophyly of Themognatha, Calodema and Metaxymorpha. Themognatha and Castiarina are elevated to generic status, monotypic Hypostigmodera is synonymised with Castiarina, and species groups are distinguished in Calodema and Metaxymorpha. A key to genera is provided. Generic characters are reviewed and taxonomically significant structures are illustrated with line drawings or scanning electron micrographs.

The Alteration of the Pore Spaces in Sandstones

1973 ◽  
Vol 31 ◽  
pp. 210-211
Author(s):  
R. E. Ferrell ◽  
G. G. Paulson
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
The Other ◽  
Coarse Grained ◽  
Depositional Fabric ◽  
Soluble Components ◽  
Scanning Electron ◽  
Shape And Size

The pore spaces in sandstones are the result of the original depositional fabric and the degree of post-depositional alteration that the rock has experienced. The largest pore volumes are present in coarse-grained, well-sorted materials with high sphericity. The chief mechanisms which alter the shape and size of the pores are precipitation of cementing agents and the dissolution of soluble components. Each process may operate alone or in combination with the other, or there may be several generations of cementation and solution.The scanning electron microscope has ‘been used in this study to reveal the morphology of the pore spaces in a variety of moderate porosity, orthoquartzites.

The Broad Applications of the Scanning Electron Microscope

1969 ◽  
Vol 27 ◽  
pp. 20-21
Author(s):  
C. T. Nightingale ◽  
S. E. Summers ◽  
T. P. Turnbull
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Light Microscopy ◽  
Surface Topography ◽  
Great Depth ◽  
Resolving Power ◽  
Depth Of Field ◽  
Pictorial Representations ◽  
Scanning Electron

The ease of operation of the scanning electron microscope has insured its wide application in medicine and industry. The micrographs are pictorial representations of surface topography obtained directly from the specimen. The need to replicate is eliminated. The great depth of field and the high resolving power provide far more information than light microscopy.

Observability of Very Thick Specimen by Using Transmission Scanning Electron Microscope

1971 ◽  
Vol 29 ◽  
pp. 26-27
Author(s):  
K. Shibatomi ◽  
T. Yamanoto ◽  
H. Koike
Keyword(s):  
Electron Microscope ◽  
Image Quality ◽  
Scanning Electron Microscope ◽  
Chromatic Aberration ◽  
Image Contrast ◽  
Objective Lens ◽  
Thick Specimen ◽  
Transmission Electron ◽  
Scanning Electron

In the observation of a thick specimen by means of a transmission electron microscope, the intensity of electrons passing through the objective lens aperture is greatly reduced. So that the image is almost invisible. In addition to this fact, it have been reported that a chromatic aberration causes the deterioration of the image contrast rather than that of the resolution. The scanning electron microscope is, however, capable of electrically amplifying the signal of the decreasing intensity, and also free from a chromatic aberration so that the deterioration of the image contrast due to the aberration can be prevented. The electrical improvement of the image quality can be carried out by using the fascionating features of the SEM, that is, the amplification of a weak in-put signal forming the image and the descriminating action of the heigh level signal of the background. This paper reports some of the experimental results about the thickness dependence of the observability and quality of the image in the case of the transmission SEM.

Resolution of a Transmitted Electron Image Formed by A Scanning Electron Microscope

1970 ◽  
Vol 28 ◽  
pp. 386-387
Author(s):  
S. Takashima ◽  
H. Hashimoto ◽  
S. Kimoto
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Chromatic Aberration ◽  
Objective Lens ◽  
Specimen Thickness ◽  
Probe Diameter ◽  
Transmission Electron ◽  
Electron Image ◽  
Conventional Transmission Electron Microscope ◽  
Scanning Electron

The resolution of a conventional transmission electron microscope (TEM) deteriorates as the specimen thickness increases, because chromatic aberration of the objective lens is caused by the energy loss of electrons). In the case of a scanning electron microscope (SEM), chromatic aberration does not exist as the restrictive factor for the resolution of the transmitted electron image, for the SEM has no imageforming lens. It is not sure, however, that the equal resolution to the probe diameter can be obtained in the case of a thick specimen. To study the relation between the specimen thickness and the resolution of the trans-mitted electron image obtained by the SEM, the following experiment was carried out.

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