Notes on the chemistry of Maronea constans and Maronea polyphaea (Fuscideaceae)

2006 ◽  
Vol 38 (6) ◽  
pp. 595-598 ◽  
Author(s):  
Scott LaGreca
Keyword(s):  
Species Concepts ◽  
Morphological Features ◽  
Lichenized Fungi ◽  
Diagnostic Features ◽  
Generic Concept ◽  
Crustose Lichen

The crustose lichen genus Maronea A. Massal (Fuscideaceae) comprises about 12 species worldwide (Kantvilas 2001, 2004). The easily recognized, diagnostic features of this group of lichens are the lecanorine apothecia, Teloschistes-type ascus, and numerous spores per ascus, and these have contributed to a very stable generic concept over the years. As in many genera of lichenized fungi, however, differing species concepts have led to confusion over how many taxa are recognized. Many species, and varieties and forms of Maronea that were described on the basis of minor morphological features have since been synonymized (e.g. Harris 2006; Magnusson 1934).

Revision of the genus Pseudolebinthus (Orthoptera, Gryllidae, Eneopterinae) with the description of a new species from Southeast Africa

Zootaxa ◽  
2018 ◽  
Vol 4521 (2) ◽  
pp. 265 ◽  
Author(s):  
RANJANA JAISWARA ◽  
JIAJIA DONG ◽  
TONY ROBILLARD
Keyword(s):  
New Species ◽  
Sister Group ◽  
Morphological Features ◽  
Female Characters ◽  
Diagnostic Features ◽  
Male And Female ◽  
Identification Keys ◽  
A New Species

Pseudolebinthus is an intriguing genus of the tribe Xenogryllini with a distribtuion restricted to southeast Africa and characterized by unique morphological features such as asymmetrical male forewings and harp veins shaped as elongated balloons. It is sister group to the widely distributed genus Xenogryllus and has been known by two species, P. africanus Robillard, 2006 and P. whellani Robillard, 2006. The genus was initially diagnosed based exclusively on male morphological features. In this study, we add a new species to the genus, P. gorochovi Robillard sp. nov. and revise the diagnostic features using both male and female characters. We also update identification keys for the species of the genus. 

Unexpected diversity of Lacon Laporte, 1838 (Coleoptera: Elateridae: Agrypninae) in the Levant: revised species concepts, new species, and an identification key

Zootaxa ◽  
2019 ◽  
Vol 4679 (3) ◽  
pp. 401-449 ◽  
Author(s):  
ROBIN KUNDRATA ◽  
JOSEF MERTLIK ◽  
TAMÁS NÉMETH
Keyword(s):  
New Species ◽  
Species Concepts ◽  
Identification Key ◽  
Diagnostic Features ◽  
First Time

The species of genus Lacon Laporte, 1838 from the Levant are taxonomically revised. Currently, 18 species are known from the area covering the island of Cyprus and mainland from Hatay province of Turkey to Israel. Six species are described as new for science: Lacon mucheibensis sp. nov. (Israel), L. qatanensis sp. nov. (Syria), L. platiai sp. nov. (Jordan), L. safitensis sp. nov. (Syria), L. tafilensis sp. nov. (Jordan), and L. zenobiae sp. nov. (Lebanon, Syria). Lacon freidbergi Platia, 2010 is synonymized with L. lithophilus (Candèze, 1857), and L. kapleri Platia & Schimmel, 1994 with L. graecus (Candèze, 1857). Lacon drusus (Marseul, 1870) is recorded for the first time from Israel. Lacon lithophilus is recorded for the first time from Israel and Jordan. Lacon graecus is removed from the fauna of Levant, because all earlier reports of this species from Lebanon and Syria were based on misidentifications. Figures of habitus and main diagnostic features are provided for all species and an identification key to the Lacon species of the Levant is given. 

scholarly journals Phylogenetic Affinity of Genolopa (Digenea: Monorchiidae) with Descriptions of Two New Species

Diversity ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 51 ◽  
Author(s):  
Apryle J. Panyi ◽  
Stephen S. Curran ◽  
Robin M. Overstreet
Keyword(s):  
New Species ◽  
Genital Atrium ◽  
Sequence Data ◽  
Morphological Features ◽  
28S Rdna ◽  
Generic Diagnosis ◽  
Diagnostic Features ◽  
Terminal Organ ◽  
Two New Species ◽  
First Time

The validity of Genolopa Linton, 1910 has been controversial because the observation of presently recognized critical diagnostic morphological features (spines in the genital atrium and a bipartite, anteriorly spined terminal organ) were omitted from the original diagnosis, and these features were not universally appreciated as important diagnostic features until 2008. Modern taxonomists have been further challenged by inappropriate fixation techniques that have resulted in various interpretations of morphological features. Consequently, named species in the genus have fluctuated among other monorchiid genera depending on various interpretations by taxonomists, and a modern consensus on classifying these species is lacking. This study combines a molecular approach with modern conventional morphological techniques to investigate the validity of Genolopa as a lineage within the Monorchiidae. New morphology and molecular sequence data from the type-species of Genolopa were studied, and two new species in the genus were described, Genolopa vesca n. sp. and Genolopa minuscula n. sp. Interrelationships among the Monorchiidae were explored using Bayesian inference analysis of the partial 28S rDNA fragment, incorporating three species of Genolopa for the first time. The phylogenetic analysis revealed that the genus represents a natural lineage, supporting the presence of spines in the genital atrium in conjunction with a bipartite and anteriorly spined terminal organ as key features of the generic diagnosis. This study also provides for the first time partial 28S rDNA data for Postmonorchis orthopristis, Lasiotocus trachinoti, Lasiotocus glebulentus, and an unidentified species of Lasiotocus.

scholarly journals Pollen morphology of Polish native species of the Rosa genus (Rosaceae) and its relation to systematics

2011 ◽  
Vol 80 (3) ◽  
pp. 221-232 ◽  
Author(s):  
Dorota Wrońska-Pilarek
Keyword(s):  
Native Species ◽  
Pollen Morphology ◽  
Pollen Grains ◽  
Pollen Grain ◽  
Morphological Features ◽  
Diagnostic Features ◽  
Qualitative Traits ◽  
Outline Shape ◽  
Analytical Results ◽  
Exine Sculpturing

The morphology of pollen grains of 16 species from the <em>Rosa </em>L. genus were studied (i.e. <em>R. agrestis</em>, <em>R. canina</em>, <em>R. dumalis</em>, <em>R. gallica</em>, <em>R. inodora</em>, <em>R. jundzillii</em>, <em>R. kostrakiewiczii</em>, <em>R. majalis</em>, <em>R. micrantha</em>, <em>R. mollis</em>, <em>R. pendulina</em>, <em>R. rubiginosa</em>, <em>R. sherardii</em>, <em>R. tomentosa</em>, <em>R. villosa</em>, and <em>R. zalana</em>). The material came from 16 native localities of those species in Poland. The measurements are based on at least 30-50 randomly selected, fully developed pollen grains per specimen. In total, 500 pollen grains were examined. They were analysed for 13 quantitative features of pollen grains and exine sculpturing and the following qualitative traits: outline, shape, "operculum" structure. The diagnostic features of pollen grains of studied species were: length of polar and equatorial axes and length of ectocolpi. The above-mentioned pollen grain morphological features make isolation of one species possible: <em>R. gallica</em>. <em>R. gallica </em>is distinguished for its highest values of the length of polar and equatorial axes, and the length of ectocolpi. The obtained analytical results of operculum and exine sculpture features, considered as diagnostic, corroborated only slightly their priority significance for the isolation of the examined species and sections. The collected data failed to confirm fully the current taxonomical division of the <em>Rosa </em>genus into sections (only section <em>Gallicanae</em> from <em>R. gallica </em>is isolated) as well as consanguinity relationships between the examined species from the <em>Caninae </em>section. On the dendrogram, both species closely related with each other as well as those from other developmental lines were found in the same group. These equivocal results are by no means surprising because the <em>Caninae </em>section is the most polymorphic group in the <em>Rosa </em>genus, and contemporary <em>Caninae </em>are of the nature of a swarm of <em>R. canina </em>hybrids as a link combining all taxons of the section.

scholarly journals Chaetotaxy of three nymphal instars of an ischnoceran louse, Aegypoecus perspicuus (Phthiraptera: Insecta)

2012 ◽  
Vol 4 (1) ◽  
pp. 92-95
Author(s):  
G. P. Agarwal ◽  
Aftab Ahmad ◽  
Gaurav Arya ◽  
Renu Saxena ◽  
Arjumand Nisar ◽  
...  
Keyword(s):  
Morphological Features ◽  
Diagnostic Features ◽  
Neophron Percnopterus

The present study on three nymphal instars of Aegypoecus perspicuus indicated that these differ from each other not only an size, abdominal segmentation, chitinization but also in the number of setae occurring on head, thorax and abdomen. The study also supplements informations regarding the morphological features and chaetotaxy of three nymphal instars of A. perspicuus, occurring on Neophron percnopterus. The diagnostic features of three nymphal instars have also been discussed.

Oligocene Planktic Foraminiferal Taxonomy and Evolution: An Illustrated Revision of Ocean Drilling Program Site 803

2021 ◽  
Vol 51 (3) ◽  
pp. 139-164
Author(s):  
Andrew J. Fraass ◽  
R. Mark Leckie
Keyword(s):  
Taxonomic Revision ◽  
Species Concepts ◽  
Sedimentation Rates ◽  
Tropical Atlantic ◽  
Late Oligocene ◽  
Ocean Drilling Program ◽  
Diagnostic Features ◽  
Planktic Foraminifera ◽  
Ocean Drilling ◽  
Binocular Microscope

ABSTRACT The Oligocene (33.9–23.0 Ma) has historically proven to be a difficult interval to examine with respect to planktic foraminifera; the tendency for many of the taxa to be basically globigerine in shape, with 4 or 5 chambers in the final whorl means differences between species are limited. Recently, an international working group has attempted to clarify the Oligocene planktic foraminiferal taxonomy, with the goal of establishing phylogenetically-consistent generic and species concepts. A relatively expanded and continuous Oligocene section recovered at Ocean Drilling Program Site 803 in the western equatorial Pacific was previously studied by Leckie et al. (1993) using fairly conservative species concepts. Since 1993, foraminiferal biostratigraphic datum age calibrations have changed, and so revised sedimentation rates for the 220-m thick Oligocene sequence are actually more constant than previously thought. As a part of the recent taxonomic revision, this site was reevaluated and numerous additional taxa are recorded at this location. Macroevolutionary rates are calculated from the occurrences, and increased extinction is found within the late Oligocene, counter to the expectations laid out in broader-scale macroevolutionary studies. An effort is made here to describe the diagnostic features, which can be used to distinguish all taxa under a standard binocular microscope. Finally, several figures of scanning electron microscope photomicrographs (from Site 803 and tropical Atlantic Ocean ODP Site 628) depict features used to describe and differentiate important, but difficult or homeomorphic taxa, with the hope that these figures can be used by other workers at the microscope attempting to do Oligocene taxonomy-based studies.

scholarly journals Andesipolis, a puzzling new genus of cyclostome Braconidae (Hymenoptera) from the Chilean Andes, with descriptions of three new species

Zootaxa ◽  
2004 ◽  
Vol 438 (1) ◽  
pp. 1 ◽  
Author(s):  
JAMES B. WHITFIELD ◽  
WON-YOUNG CHOI ◽  
KYONG-IN SUH
Keyword(s):  
New Species ◽  
Morphological Variation ◽  
New Genus ◽  
Full Scale ◽  
Morphological Features ◽  
Andean Region ◽  
Generic Concept ◽  
Abundant Genus ◽  
Three New Species ◽  
Braconid Wasp

A new genus of braconid wasp, Andesipolis Whitfield & Choi, n. g., is described from the Andean region of Chile. It clearly belongs to the cyclostome lineage of Braconidae but otherwise is difficult to assign definitively to tribe or subfamily, as it has some morphological features typical of Rhysipolini, others typical of Rhyssalini, and a few unique features. Three species, A. whartoni n. sp., A. masoni, n. sp. and A. framea n. sp. are described to represent the range of morphological variation encompassed by the new generic concept; other species are known to exist in collections but await a full-scale revision of this locally abundant genus.

Review of the Nearctic genus Wilcoxia James (Diptera: Asilidae: Stenopogoninae), with descriptions of three new species

Zootaxa ◽  
2019 ◽  
Vol 4695 (5) ◽  
pp. 401-437
Author(s):  
DARREN A. POLLOCK ◽  
LISA A. REICHERT
Keyword(s):  
New Species ◽  
New Mexico ◽  
Natural History ◽  
Type Specimen ◽  
Structural Heterogeneity ◽  
Structural Features ◽  
Morphological Features ◽  
Type Locality ◽  
Diagnostic Features ◽  
Three New Species

The robber fly genus Wilcoxia is revised based on external morphological features of adults. For each species the following is provided: type specimen information, diagnostic features, description, natural history including associated prey data, and geographical distribution (derived from georeferenced localities for both examined specimens and literature records). A key to adults of Wilcoxia, supplemented with photographs of habitus and selected morphological features, is included. The genus comprises eight species, distributed primarily in the southwestern United States. Three new species are described: W. apache (type locality: New Mexico, Quay County, Apache Canyon), W. flavipennis (type locality: Arizona, Pima County, Organ Pipe Cactus National Monument), and W. forbesi (type locality: New Mexico, Doña Ana County, 1 mi. NW Tortugas Mt.). There appear to be two reasonably well-defined species groups (cinerea and martinorum groups, with four species in each), based on structural features, seasonality and natural history. Identified prey items (for W. apache, W. forbesi and W. martinorum) include representatives from Hemiptera (eight families), Coleoptera (one family), Hymenoptera (five families) and Diptera (10 families). A discussion on the structural heterogeneity of Wilcoxia and a history of its classification are provided. 

scholarly journals Revision of Desmodorinae and Spiriniinae (Nematoda: Desmodoridae) with redescription of eight known species

2014 ◽  
Author(s):  
Maickel Armenteros ◽  
Alexei Ruiz-Abierno ◽  
Wilfrida Decraemer
Keyword(s):  
Type Species ◽  
Head Capsule ◽  
Morphological Features ◽  
The Other ◽  
Type Material ◽  
Diagnostic Features ◽  
Incertae Sedis ◽  
New Findings ◽  
The Family ◽  
Amphidial Fovea

The taxonomy of the family Desmodoridae (Nematoda: Desmodorida) is partially revised based on morphology. The diagnoses of the Desmodoridae and the subfamilies Desmodorinae and Spiriniinae are emended to accommodate re-analyzed morphological features. Eight known species are redescribed and the implication of the new findings for the taxonomy of the group is discussed. Amphispira and Metadesmodora are confirmed as genera inquirendae. Alaimonema and Sigmophoranema, and their corresponding type species, are proposed as inquirendae due to poor descriptions of the type material. The other three species of Sigmophoranema are transferred to the genus Onyx because they bear the diagnostic features of this group: spear-like dorsal tooth and s-shape precloacal supplements. Echinodesmodora, Paradesmodora and Stygodesmodora are transferred to the Spiriniinae based on the absence of a head capsule and on the amphidial fovea being surrounded by cuticle striation. Paradesmodora toreutes is transferred to the genus Acanthopharyngoides as A. toreutes comb. nov. The genus Onepunema does not fit in the family Desmodoridae because of diorchic males; thus, it is regarded as taxon incertae sedis. Lists of valid genera for the two subfamilies are provided. A dichotomic key for the identification of the 14 genera within the Spiriinae is provided.

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