ON THE SYSTEMATIC POSITION OF THE ÆGIALITIDÆ

1904 ◽  
Vol 36 (12) ◽  
pp. 356-357
Author(s):  
H. F. Wickham
Keyword(s):  
North America ◽  
Natural History ◽  
Systematic Position ◽  
Detailed Account ◽  
The Family ◽  
The Way

The family Ægialitidæ, then known by but one species, was placed by Dr. LeConte (Classification of the Coleoptera of North America, p. xxxvi.) in association with those Heteromera having the anterior coxal cavities closed behind. This structure is also assigned to Ægialites in the detailed account of the insect on page 388 of the same work. Dr. Sharp, in his recent treatise on insects (Cambridge Natural History, Vol. VI., p. 265), speaks of the anterior coxæ as being “completely closed in,” while Dr. Geo. Horn, though dissecting a specimen for a study of the mouthparts, seems to have overlooked the coxal structure, or he would certainly have alluded to it in his notes on the genus (Trans. American Ento. Soc., XV., p. 27). In view of the statements in the books, I was surprised, a few months ago, by the receipt of a letter from the Rev. J. H. Keen, in which he asserted that the cavities of the anterior coxæ are open behind, as in indeed the case. Mr. Keen's observation is of great importance, in that it opens the way to a proper appreciation of the systematic position of the insect.

Studies on the Family Opisthorchiidaæ Braun, 1901, with a description of a New Species of Opisthorchis from a Sarus Crane (Antigone antigone)

1927 ◽  
Vol 5 (2) ◽  
pp. 89-104 ◽  
Author(s):  
D. O. Morgan
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Systematic Position ◽  
Minor Importance ◽  
New Genera ◽  
The Past ◽  
The Family ◽  
A New Species

The classification of the Trematode family Opisthorchiidæ presents some difficulties to the systematist. These difficulties arise partly from the fact that a number of the existing species appear to lack any real morphological characters by which they can be differentiated, slight variations in measurements, together with a difference in host, having been considered sufficient to justify the making of new species. This view has resulted in the placing of undue importance on somewhat minor differences when they do occur in other species, such differences being considered sufficient for creating new genera.The systematist is further confronted with the difficulty of forming definite opinions on the systematic position of some of the species made by earlier workers. Their descriptions and figures are often inadequate owing to the fact that characters which, in the past, were considered of minor importance are now given much closer attention. Examples of the confusion which has arisen from such a position will be referred to in this paper.

scholarly journals Description of the late- or last-instar larva of Ischyomius Chevrolat, with comments on the family placement of the genus (Coleoptera: Tenebrionoidea: Pythidae)

2020 ◽  
Author(s):  
Darren A. Pollock ◽  
Jim McClarin
Keyword(s):  
Natural History ◽  
Anterior Margin ◽  
Instar Larva ◽  
Posterior Column ◽  
Anterior Column ◽  
The Family ◽  
History Information

Study of recently collected larvae of two species of Ischyomius Chevrolat, 1871 from Napo and Pichincha, Ecuador, tentatively identified as I. denticollis Champion, 1916 and I. singularis Chevrolat, 1871 confirm the classification of the genus Ischyomius within the family Pythidae. Salient larval characters which solidify this placement are: 5 stemmata arranged into an anterior column of 3 and posterior column of 2, parabasal ridges along anterior margins of abdominal tergites, prominent urogomphi with inner urogomphal teeth and various dorsal tubercles, and transverse row of dentiform asperities along anterior margin of sternite 9. Important features of the larva are illustrated with photographs. A key to larvae of world genera of Pythidae is provided as well as natural history information on Ischyomius.

scholarly journals Phylogenetic evidence for an expanded circumscription of Gabura (Arctomiaceae)

2020 ◽  
Vol 52 (1) ◽  
pp. 3-15
Author(s):  
Nicolas Magain ◽  
Toby Spribille ◽  
Joseph DiMeglio ◽  
Peter R. Nelson ◽  
Jolanta Miadlikowska ◽  
...  
Keyword(s):  
South Africa ◽  
North America ◽  
Molecular Taxonomy ◽  
Distinct Species ◽  
New Combinations ◽  
Morphological Convergence ◽  
The Family ◽  
Phylogenetic Lineages ◽  
First Time

AbstractSince the advent of molecular taxonomy, numerous lichen-forming fungi with homoiomerous thalli initially classified in the family Collemataceae Zenker have been transferred to other families, highlighting the extent of morphological convergence within Lecanoromycetes O. E. Erikss. & Winka. While the higher level classification of these fungi might be clarified by such transfers, numerous specific and generic classifications remain to be addressed. We examined the relationships within the broadly circumscribed genus Arctomia Th. Fr., which has been the recipient of several transfers from Collemataceae. We demonstrated that Arctomia insignis (P. M. Jørg. & Tønsberg) Ertz does not belong to Arctomia s. str. but forms a strong monophyletic group with Gabura fascicularis (L.) P. M. Jørg. We also confirmed that Arctomia borbonica Magain & Sérus. and the closely related Arctomia insignis represent two species. We formally transferred A. insignis and A. borbonica to the genus Gabura Adans. and introduced two new combinations: Gabura insignis and Gabura borbonica. We reported Gabura insignis from Europe (Scotland and Ireland) for the first time. While material from Europe and North America is genetically almost identical, specimens from Madagascar, South Africa and Reunion Island belong to three distinct phylogenetic lineages, all of which are present in the latter area and may represent distinct species. In its current circumscription, the genus Gabura may contain up to six species, whereas Arctomia s. str. includes only two species (A. delicatula Th. Fr. and A. teretiuscula P. M. Jørg.). The Gabura insignis group is shown to have an unexpectedly large, subcosmopolitan distribution. With the extended sampling from Arctomiaceae Th. Fr., the placement of Steinera sorediata P. James & Henssen in the genus Steinera Zahlbr. is confirmed and the presence of a new Steinera species from Chile is highlighted.

The status of the staphylinid genera Derops Sharp and Rimulincola Sanderson (Coleoptera)

1983 ◽  
Vol 14 (3) ◽  
pp. 269-279 ◽  
Author(s):  
A. Smetana
Keyword(s):  
North America ◽  
Distribution Pattern ◽  
Geographical Distribution ◽  
Systematic Position ◽  
Published Data ◽  
Southern Illinois ◽  
The Family ◽  
The Status ◽  
New Tribe ◽  
Nearctic Region

AbstractThe systematic position of the genus Derops Sharp, 1889 (several species in the Palaearctic and Oriental regions) within the family Staphylinidae and its relationship to the genus Rimulincola Sanderson, 1947 (one species in the eastern Nearctic region) are discussed. The genus Derops is shown to be congeneric with Rimulincola, which becomes a junior synonym of Derops. — The genus Derops is removed from the subfamily Phloecharinae and reassigned to the subfamily Tachyporinae as a separate new tribe Deropsini. A key to the tribes of Tachyporinae is given. — Derops kasugaensis (Sawada, 1956) is placed in synonymy with Derops longicornis Sharp, 1889. The published data on the ecology of species of Derops are summarized and detailed ecological observations by the author on D. divalis (southern Illinois) andD. longicornis (Japan, Honshu) are given and compared. The disjunct (eastern and/or midwestern North America-southeastern Asia) type of geographical distribution of Derops is discussed and compared with similar distributions of the syrphid genus Pterallastes Loew (Diptera and some plant genera). This distribution pattern is considered to be unique within the order Coleoptera.

The morphology and the systematic position of a new Trematode from the intestine of the golden orfe, Leuciscus idus, with a note on the classification of the family Allocreadiidae

1934 ◽  
Vol 12 (3) ◽  
pp. 127-136
Author(s):  
Gobind Singh Thapar ◽  
Jagdeshwari Dayal
Keyword(s):  
Fresh Water ◽  
Systematic Position ◽  
Helminth Parasites ◽  
Larval Stages ◽  
The Family ◽  
The Subject ◽  
Complete Bibliography ◽  
Leuciscus Idus ◽  
Trematode Parasites

A considerable amount of attention has been paid to the parasites of fresh water fishes in the West on account of the great economic importance of fishes, particularly their value in food. Their importance further increases, when we find that they also serve, in several cases, as carriers of the larval stages of the helminth parasites of man and domesticated animals. The work prior to 1924 has been summarised by Nicoll (1924), where he has given a complete bibliography on the subject, and has, besides, indicated the important and characteristic Trematodes of fresh water fishes. In this list he enumerates the forms like Sphaerostoma bramae (= Dist. globiporum); Allocreadium isoporum; Catoptroides macrocotyle; Azygia lucii; Bucephalus polymorphus; Diplostomum volvens; Diplozoon paradoxum; and Gyrodactylus elegans. This list has been considerably enlarged by subsequent workers by the addition of several general and species from the fresh water hosts from different parts of the world, the principal workers being Nicoll, Odhner, Poche and Travassos. In India, the additions to our knowledge of the Trematode parasites of fishes has been made by Southwell (1913), Southwell and Prashad (1919), Verma (1927) and Thapar (1930). The present paper adds yet another genus to the already extensive list of Trematode parasites of fishes.

LARVAE OF WATER MITES OF SOME GENERA OF ATURIDAE (PROSTIGMATA: HYGROBATOIDEA) IN NORTH AMERICA WITH COMMENTS ON PHYLOGENY AND CLASSIFICATION OF THE FAMILY

1984 ◽  
Vol 116 (3) ◽  
pp. 307-374 ◽  
Author(s):  
Ian M. Smith
Keyword(s):  
North America ◽  
Comparative Data ◽  
Water Mites ◽  
The Family ◽  
First Time ◽  
Host Associations

AbstractLarvae of species representing 8 genera of the family Aturidae from North America are described, including members of the genera Ljania, Neobrachypoda, Estellacarus, and Aturus for the first time adequately. Larvae of species of Woolastookia, Brachypoda, Axonopsis, and Albia are also described to provide comparative data for these genera. A key to the genera of Aturidae, and preliminary diagnoses for the family, currently accepted subfamilies, and genera are provided based upon larval characters. Information on host associations is reviewed for each taxon. Observations on morphology and host associations of larvae provide the basis for a discussion of the phylogeny of these genera, and a review of the classification of the family.

Contributions to a revision of the marine triclads of North America: the monotypic genera Nexilis, Nesion, and Foviella (Turbellaria: Tricladida)

1975 ◽  
Vol 53 (4) ◽  
pp. 395-407 ◽  
Author(s):  
Ian R. Ball
Keyword(s):  
North America ◽  
Lake Baikal ◽  
North American ◽  
Systematic Position ◽  
Type Material ◽  
Copulatory Apparatus ◽  
The Family ◽  
Original Interpretation

New interpretations of the anatomy and systematic positions of three North American marine triclads are given. Nexilis epichitonius is redescribed from the type material and it is claimed that the original interpretation of the copulatory apparatus was erroneous. A new account is given, the genus is redefined, and some curious similarities between this species and some triclads of Lake Baikal are discussed. A further assessment of the taxonomic affinities of Nesion arcticum is provided based on study of a new specimen that is better preserved than the types. The systematic position of Foviella affinis is discussed on the basis of studies of specimens from North America and Europe. The species cannot be a procerodid and it is here classified with the Uteriporidae. Probursa and Centrovarioplana are removed from the Uteriporidae and the family is redefined.

Emendation of Fragilariophyceae classification (Bacillariophyta)

2015 ◽  
Vol 49 ◽  
pp. 75-91 ◽  
Author(s):  
V. A. Stepanova ◽  
R. M. Gogorev
Keyword(s):  
Historical Review ◽  
Systematic Position ◽  
Morphological Features ◽  
New Order ◽  
The Past ◽  
The Family ◽  
Molecular Studies

An historical review of some approaches to the classification of diatoms is presented. The class Fragilariophyceae was described by F. Round et al. (1990) and consisted of 54 genera of araphid diatoms. Over the past 25 years, 43 genera and two families within the class have been described. The systematic position of the family Plagiogrammaceae in the class of araphid diatoms was based on phylogenetic molecular studies. According to these data and unique morphological features, we propose a new order, Plagiogrammales ord. nov., with the type genus Plagiogramma. The name of the order Protoraphidales ord. nov. is validated, and the genus Podocystis is transferred from the family Fragilariaceae to the family Licmophoraceae. The systematic position of the genera Florella, Podocystis, Gato and Astrosyne is discussed.

Research Note: New Perspectives on Kongo in Revolutionary Haiti

2016 ◽  
Vol 74 (1) ◽  
pp. 83-97 ◽  
Author(s):  
James Sweet
Keyword(s):  
North America ◽  
Natural History ◽  
New Orleans ◽  
Haitian Revolution ◽  
American Philosophical Society ◽  
French Military ◽  
The Family ◽  
History Of ◽  
French Colonies ◽  
The Haitian Revolution

On February 26, 1794, Louis Narcisse Baudry des Lozières arrived at the port of Norfolk, Virginia, from Le Havre on the coast of France. His journey had not been an easy one. Shortly after leaving France, the ship carrying Baudry, his wife, their 13-year-old daughter, and a Norman servant girl was caught in a terrible storm. The family endured a harrowing four-month Atlantic crossing, but they had experienced far worse. Just two years earlier, Baudry had discovered his wife and daughter “wandering in the woods” of St. Domingue, after rebels had forced them to abandon their home in the early days of the Haitian Revolution. Baudry, a distinguished French military officer, had himself been wounded fighting the insurgents near Léogane, and the majority of the soldiers under his command had been slaughtered. Fearing for his life, Baudry fled the colony in March 1792. In Paris, he briefly reunited with his more famous brother-in-law, the lawyer and writer Médéric Louis Élie Moreau de Saint-Méry. However, both were soon forced into exile, and he eventually settled in Philadelphia. There, Baudry worked as a clerk, bookseller, and editor. He also used his exile as an opportunity to travel North America, spending time with his wife and in-laws in New Orleans. Eventually, Baudry presented himself as an expert on the natural history of the French colonies, delivering lectures to the American Philosophical Society in Philadelphia and publishing several articles on “scientific” topics.

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