Four new genera of Schizopteridae (Hemiptera: Heteroptera) from the Afrotropical and Neotropical regions

Zootaxa ◽  
2020 ◽  
Vol 4768 (1) ◽  
pp. 95-111 ◽  
Author(s):  
CHRISTIANE WEIRAUCH ◽  
ALEXANDER KNYSHOV ◽  
ROCHELLE HOEY-CHAMBERLAIN
Keyword(s):  
New Genus ◽  
Phylogenetic Analyses ◽  
Wing Venation ◽  
New Genera ◽  
Undescribed Species ◽  
Electron Microscopic ◽  
Male And Female ◽  
Scanning Electron Microscopic ◽  
Trap Sample ◽  
Scanning Electron

Despite a recent surge of taxonomic work on the dipsocoromorphan family Schizopteridae, new genus-level taxa remain to be documented and described. The curation of Malaise and Yellow Pan Trap sample residues from Central and South America and Cameroon resulted in the discovery of five undescribed species that based on combined molecular and morphological phylogenetic analyses represent four phylogenetically isolated lineages within non-hypselosomatine Schizopteridae. To accommodate these new species, we here describe the four new genera Caucanannus gen. n. (Colombia, Ecuador, and Brazil) with Caucanannus perplexus sp. n. and Caucanannus novissimis sp. n.; Kamakonocoris gen. n. (Cameroon) with Kamakonocoris carinata sp. n.; Perittonannus gen. n. (Costa Rica) with Perittonannus antiquus sp. n.; and Rimanannus gen. n. (Cameroon) with Rimanannus camerunensis sp. n. The four genera are characterized by distinctive wing venation and male and female genitalic features. We provide habitus photographs and document morphological details using digital macrophotography as well as light compound microscopic and scanning electron microscopic images. Maps and measurements are also included. 

scholarly journals CAPNODIUM VARIEGATUM – A NEW FOLIICOLOUS SPECIES OF SOOTY MOULD INFECTING BAUHINIA VARIEGATA L. FROM CHHATTISGARH, INDIA

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Anshu Deep Khalkho ◽  
Akhila Nand Rai ◽  
Smriti Bhardwaj
Keyword(s):  
Microscopic Investigation ◽  
Electron Microscopic Investigation ◽  
New Taxon ◽  
Undescribed Species ◽  
Electron Microscopic ◽  
Sooty Mould ◽  
The World ◽  
Scanning Electron Microscopic ◽  
Bauhinia Variegata ◽  
Scanning Electron

A survey for the study of foliicolous fungal forms of Ambikapur, north Chhattisgarh was conducted in November 2018, and came across an interesting fungal form of sooty mould infecting living leaves of Bauhinia variegata L. which upon detailed mycotaxonomic treatment proved to be an undescribed species of Capnodium. Sooty mould diminish photosynthesis of host plant. Capnodiaceae is the most specialized family of sooty mould which includes 5 genera,149 species from the world and only 10 species described from India. Phenotypic observations, microscopic and Scanning Electron Microscopic investigation revealed the drastic differences with the earlier known allied taxa so much so to dispose it as a new taxon of species rank Capnodium variegatum sp.nov.

A revision of the taxonomy of Aphelenchoides stammeri Körner, 1954 (Rhabditida: Aphelenchoididae) and proposal for a new genus

Nematology ◽  
2020 ◽  
pp. 1-14
Author(s):  
Jianfeng Gu ◽  
Lele Liu ◽  
Joaquín Abolafia ◽  
Majid Pedram
Keyword(s):  
New Genus ◽  
Morphological Characters ◽  
The Body ◽  
Mitochondrial Cytochrome ◽  
Electron Microscopic ◽  
Sem Images ◽  
Scanning Electron Microscopic ◽  
The Status ◽  
Phylogenetic Affinities ◽  
Scanning Electron

Summary During the present study, Aphelenchoides stammeri was recovered from pine packaging wood imported from Spain to China (isolate 3334), and was also later found in China (isolate CN24). The first population (3334) was characterised by 912-1075 μm long females and 803-983 μm long males, a rounded elevated and offset lip region separated from the rest of the body by a sharp constriction having fine annuli in scanning electron microscopic (SEM) images, 14.0-19.3 μm long well-sclerotised stylet with a wide lumen (especially in the shaft) and small basal swellings, its conus forming ca 40% of the total length, the metacorpus with well-sclerotised and large central or slightly postcentral valve plates, vulva with no flap, functional rectum and anus, dorsally convex, ventrally bent conical tail (c’ = 3.3-4.3), males common with aphelenchoidid-type spicules having an elongate condylus with wide bluntly rounded end, a blunt rostrum and simple end, and seven precloacal + cloacal + caudal papillae. The SEM data of the studied Spanish population, the detailed light microscopic (LM) observations on previously reported populations and detailed studies of a cultured population from Germany, yielded new observations, supporting the status of this species as an independent genus. The phylogeny of the new genus was investigated using four markers, viz., small and large (SSU, LSU D2-D3), internal transcribed spacer1 (ITS) rDNA, and mitochondrial cytochrome c oxidase 1 (COI mtDNA) genes. Potensaphelenchus n. gen. is proposed for the species and it is placed under the Parasitaphelenchinae based upon its morphological characters and phylogenetic affinities. The diagnostics of the new genus and its relationships with similar aphelenchoidid genera are discussed. Seinura lii is proposed as new junior synonym of Potensaphelenchus stammeri n. gen., n. comb.

Gliwiczia gen. nov. a new monoraphid diatom genus from Lake Baikal with a description of four species new for science

Phytotaxa ◽  
2013 ◽  
Vol 109 (1) ◽  
pp. 1 ◽  
Author(s):  
MAXIM KULIKOVSKIY ◽  
HORST LANGE-BERTALOT ◽  
ANDRZEJ WITKOWSKI
Keyword(s):  
Lake Baikal ◽  
New Genus ◽  
Type Material ◽  
Freshwater Lakes ◽  
Electron Microscopic ◽  
Scanning Electron Microscopic ◽  
Open Circular ◽  
Diatom Genus ◽  
Scanning Electron ◽  
Sem Studies

This paper proposes a new monoraphid genus Gliwiczia Kulikovskiy, Lange-Bertalot & Witkowski, separated from Achnanthes sensu lato. Here we describe four species G. skvortzowii Kulikovskiy, Lange-Bertalot & Witkowski, G. tenuis Kulikovskiy, Lange-Bertalot & Witkowski, G. latarea Kulikovskiy, Lange-Bertalot & Witkowski and G. vixcalcar Kulikovskiy, Lange-Bertalot & Witkowski which all are new to science. In terms of morphology, this group of species closely resembles Achnanthes calcar Cleve. Also proposed is the taxonomic transfer of A. calcar Cleve to Gliwiczia calcar (Cleve) Kulikovskiy, Lange-Bertalot & Witkowski comb. nov. Our taxonomic conclusions about the position of this group of species is based on light microscopic (LM) examination of the type material of A. calcar and on extensive LM and scanning electron microscopic (SEM) studies on material originating from Lake Baikal. This new genus differs from other established monoraphid genera in the of cavum (horse shoe) present on both raphe and sternums valves, uniseriate striae on both valves, and areola occlusions in a form of open circular foramina externally. The raphe valve is only slightly concave, whereas the sternum valves appear flat. Only one of the species belonging in Gliwiczia gen. nov., G. calcar, is known to inhabit oligotrophic and dystrophic freshwater lakes of Eurasia. It seems highly likely that the newly described species are limited in their distribution to the waters of Lake Baikal. None of them have thus far been illustrated in any accessible literature even under provisional names.

Review of the Blastobasinae of Costa Rica (Lepidoptera: Gelechioidea: Blastobasidae)

Zootaxa ◽  
2013 ◽  
Vol 3618 (1) ◽  
pp. 1-223
Author(s):  
DAVID ADAMSKI
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Wing Venation ◽  
Scanning Electron Micrographs ◽  
New Genera ◽  
Male And Female ◽  
Distribution Maps ◽  
Inner Surface ◽  
Type Data ◽  
Scanning Electron

The Blastobasinae (Lepidoptera: Gelechioidea: Blastobasidae) of Costa Ricaare reviewed. Five new genera, Barbaloba, Hallicis, Koleps, Pheos, and Pseudokoleps, and 101 new species are described. They include: Barbaloba jubae, B. meleagrisellae, Hallicis bisetosellus, H. calvicula, Koleps angulatus, Pheos aculeatus, Pseudokoleps akainae, Blastobasis abollae, B. achaea, B. aedes, B. babae, B. balucis, B. beo, B. caetrae, B. chanes, B. custodis, B. dapis, B. deae, B. deliciolarum, B. dicionis, B. echus, B. erae, B. fax, B. furtivus, B. iuanae, B. lex, B. litis, B. lygdi, B. manto, B. neniae, B. nivis, B. orithyia, B. paludis, B. phaedra, B. rotae, B. rotullae, B. tapetae, B. thyone, B. usurae, B. vesta, B. xiphiae, Hypatopa actes, H. acus, H. agnae, H. arxcis, H. bilobata, H. caedis, H. caepae, H. cladis, H. cotis, H. cotytto, H. crux, H. cyane, H. dicax, H. dolo, H. dux, H. edax, H. eos, H. erato, H. fio, H. gena, H. hecate, H. hera, H. hora, H. io, H. ira, H. leda, H. limae, H. lucina, H. joniella, H. juno, H. manus, H. mora, H. musa, H. nex, H. nox, H. phoebe, H. pica, H. plebis, H. rabio, H. rea, H. rego, H. rudis, H. sais, H. scobis, H. semela, H. solea, H. styga, H. texla, H. texo, H. umbra, H. verax, H. vitis, H. vox, Pigritia dido, P. faux, P. gruis, P. haha, P. sedis, P. stips, and P. ululae. Diagnoses, descriptions, and type data are provided for each species. Photographs of imagos, illustrations of wing venation for selected species, male and female genitalia, and distribution maps are furnished. Keys to all genera in Blastobasinae and keys to all species within each genus are provided to assist with identifications. In addition, scanning electron micrographs of the inner surface of the dilated first antennal flagellomere and associated sex scales for all Blastobasis are provided. Blastobasis coffeaella (Busck, 1925), B. graminea Adamski, 1999, Hypatopa tapadulcea Adamski, 1999, and Pigritia marjoriella Adamski, 1998 are redescribed.

Histomorphological and scanning electron microscopic studies on tongue of Emu (Dromaius Novaehollandiae)

2019 ◽  
Author(s):  
Varinder Uppal ◽  
Neelam Bansal ◽  
Anuradha Gupta ◽  
Devendra Pathak
Keyword(s):  
Connective Tissue ◽  
Poultry Farm ◽  
Striated Muscles ◽  
Electron Microscopic ◽  
Male And Female ◽  
Dromaius Novaehollandiae ◽  
Scanning Electron Microscopic ◽  
Microscopic Studies ◽  
Keratinized Epithelium ◽  
Scanning Electron

The present research was conducted on the tongue of eight dead emu birds (both male and female) collected from poultry farm of GADVASU, Ludhiana to investigate its histological and scanning electron microscopic details. The tissue pieces of tongue were processed for light and scanning electron microscopic studies. The lingual surfaces were lined by stratified squamous non keratinized epithelium. Tongue consisted of connective tissue, mucus glands, blood vessels, Herbst corpuscles, lingual skeleton and striated muscles. SEM indicated desquamating and non-desquamating epithelial cells along with microplicae were observed. Microvilli were very few. The area of papillae was devoid of any glandular openings.

Scanning Electron Microscopic Study of the Cell Surface

1969 ◽  
Vol 27 ◽  
pp. 36-37 ◽  
Author(s):  
Toichiro Kuwabara
Keyword(s):  
Tissue Fluid ◽  
Biological Application ◽  
Biological Structure ◽  
Electron Microscopic ◽  
Surface Appearance ◽  
Minute Amount ◽  
Scanning Electron Microscopic Study ◽  
Scanning Electron Microscopic ◽  
True Structure ◽  
Scanning Electron

Although scanning electron microscopy has a great potential in biological application, there are certain limitations in visualization of the biological structure. Satisfactory techniques to demonstrate natural surfaces of the tissue and the cell have been reported by several investigators. However, it is commonly found that the surface cell membrane is covered with a minute amount of mucin, secretory substance or tissue fluid as physiological, pathological or artefactual condition. These substances give a false surface appearance, especially when the tissue is fixed with strong fixatives. It seems important to remove these coating substances from the surface of the cell for demonstration of the true structure.

A scanning electron microscopic study on dissolving process of cholesterol gallstones by chenodeoxycholic acid (CDCA)

1978 ◽  
Vol 36 (2) ◽  
pp. 522-523
Author(s):  
T. Kanetaka ◽  
M. Cho ◽  
S. Kawamura ◽  
T. Sado ◽  
K. Hara
Keyword(s):  
Electron Microscope ◽  
Chenodeoxycholic Acid ◽  
Outer Surface ◽  
Electron Microscopic ◽  
Cholesterol Gallstones ◽  
The Core ◽  
Scanning Electron Microscopic Study ◽  
Scanning Electron Microscopic ◽  
Acceleration Voltage ◽  
Scanning Electron

The authors have investigated the dissolution process of human cholesterol gallstones using a scanning electron microscope(SEM). This study was carried out by comparing control gallstones incubated in beagle bile with gallstones obtained from patients who were treated with chenodeoxycholic acid(CDCA).The cholesterol gallstones for this study were obtained from 14 patients. Three control patients were treated without CDCA and eleven patients were treated with CDCA 300-600 mg/day for periods ranging from four to twenty five months. It was confirmed through chemical analysis that these gallstones contained more than 80% cholesterol in both the outer surface and the core.The specimen were obtained from the outer surface and the core of the gallstones. Each specimen was attached to alminum sheet and coated with carbon to 100Å thickness. The SEM observation was made by Hitachi S-550 with 20 kV acceleration voltage and with 60-20, 000X magnification.

A Comparative Study of Fractographic Replicas

1974 ◽  
Vol 32 ◽  
pp. 566-567
Author(s):  
Loren Anderson ◽  
Pat Pizzo ◽  
Glen Haydon
Keyword(s):  
Electron Microscopy ◽  
Electron Microscopic Examination ◽  
Direct Examination ◽  
Electron Microscopic ◽  
Reliable Technique ◽  
Service Failures ◽  
Transmission Electron ◽  
Mode Of Failure ◽  
Scanning Electron Microscopic ◽  
Scanning Electron

Transmission electron microscopy of replicas has long been used to study the fracture surfaces of components which fail in service. Recently, the scanning electron microscope (SEM) has gained popularity because it allows direct examination of the fracture surface. However, the somewhat lower resolution of the SEM coupled with a restriction on the sample size has served to limit the use of this instrument in investigating in-service failures. It is the intent of this paper to show that scanning electron microscopic examination of conventional negative replicas can be a convenient and reliable technique for determining mode of failure.

A Scanning Electron Microscopic Study of the Uriniferous Tubules

1973 ◽  
Vol 31 ◽  
pp. 622-623
Author(s):  
Peter M. Andrews
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Renal Glomerulus ◽  
Electron Microscopic ◽  
Vascular Perfusion ◽  
Scanning Electron Microscopic Study ◽  
Scanning Electron Microscopic ◽  
Collecting Tubules ◽  
Bowman's Capsule ◽  
Scanning Electron

Although there have been a number of recent scanning electron microscopic reports on the renal glomerulus, the advantages of scanning electron microscopy have not yet been applied to a systematic study of the uriniferous tubules. In the present investigation, scanning electron microscopy was used to study the ultrastructural morphology of the proximal, distal, thin loop, and collecting tubules. Material for observation was taken from rat kidneys which were fixed by vascular perfusion, sectioned by either cutting or fracturing technigues, and critically point dried.The brush border characterising proximal tubules is first detected on the luminal surface of Bowman's capsule adjacent to the urinary pole orifice. In this region one frequently finds irregular microvilli characterized by broad and flattened bases with occasional bulbous structures protruding from their surfaces.

Human Stapes Crura: Normal Ultrastructure. Scanning Electron Microscopic Findings

1975 ◽  
Vol 33 ◽  
pp. 528-529
Author(s):  
M.D. Graham
Keyword(s):  
Electron Microscope ◽  
Surgical Treatment ◽  
Scanning Electron Microscope ◽  
Osmic Acid ◽  
Human Cadaver ◽  
Electron Microscopic ◽  
Scanning Electron Microscopic ◽  
Normal Human ◽  
Microscopic Findings ◽  
Scanning Electron

The recent development of the scanning electron microscope has added great impetus to the study of ultrastructural details of normal human ossicles. A thorough description of the ultrastructure of the human ossicles is required in order to determine changes associated with disease processes following medical or surgical treatment.Human stapes crura were obtained at the time of surgery for clinical otosclerosis and from human cadaver material. The specimens to be examined by the scanning electron microscope were fixed immediately in the operating room in a cold phosphate buffered 2% gluteraldehyde solution, washed with Ringers, post fixed in cold 1% osmic acid and dehydrated in graded alcohol. Specimens were transferred from alcohol to a series of increasing concentrations of ethyl alcohol and amyl acetate. The tissue was then critical point dried, secured to aluminum stubs and coated with gold, approximately 150A thick on a rotating stage in a vacuum evaporator. The specimens were then studied with the Kent-Cambridge S4-10 Scanning Electron Microscope at an accelerating voltage of 20KV.

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