A new genus of the family Plagusiidae Dana, 1851, close to Plagusia Latreille, 1804 (Crustacea, Decapoda, Brachyura)

Zootaxa ◽  
2007 ◽  
Vol 1498 (1) ◽  
pp. 27-33 ◽  
Author(s):  
DANIOLE GUINOT
Keyword(s):  
New Genus ◽  
The Other ◽  
The Family ◽  
Naked Body

The new genus Davusia n.gen. is established for Plagusia glabra Dana, 1852, from Australia, a species clearly different from the other known species of Plagusia. The new genus is related to Plagusia Dana, 1851 but is readily distinguished from its described species by differences in the morphology of the front, external maxillipeds, thoracic sternum, and the male abdomen. D. glabra (Dana, 1852) n.comb. is characterized by smooth and practically naked body and pereopods

Ivoria taiensis gen. nov., sp. nov., a remarkable new mite genus from West Africa (Acari: Mesostigmata: Urodinychidae)

2019 ◽  
Vol 24 (6) ◽  
pp. 1063-1070
Author(s):  
Jeno Kontschán
Keyword(s):  
West Africa ◽  
Ivory Coast ◽  
New Genus ◽  
Soil Samples ◽  
The Other ◽  
Monotypic Genus ◽  
The Family ◽  
Mite Genus

A new monotypic genus, Ivoria taiensis gen. nov., sp. nov. (Mesostigmata: Uropodina: Uropodinychidae) is described on the basis of seven females collected in soil samples from Ivory Coast. The new genus has large and robust chelicerae, but it differs from the other Uropodina genera having similar chelicerae in several characters, which are presented in a comparative table. The new genus is placed in the family Urodinychidae based on its long setae h1, chelicerae with an internal sclerotized node, fixed digit of chelicerae apically smooth and devoid of apical processes, corniculi smooth.

Parakari a New Genus of the Family Baetidae (Insecta: Ephemeroptera) from Guyana Highlands

Zootaxa ◽  
2011 ◽  
Vol 3032 (1) ◽  
pp. 47 ◽  
Author(s):  
CAROLINA NIETO ◽  
TOMÁŠ DERKA
Keyword(s):  
New Species ◽  
South America ◽  
New Genus ◽  
The Other ◽  
Obtuse Angle ◽  
Diverse Families ◽  
The Family ◽  
Two New Species ◽  
High Level ◽  
Table Mountains

Baetidae is one of the most diverse families of Ephemeroptera. In South America this family now encompasses 27 genera and more than 130 species. The Guyana region is known for its extraordinary diversity and high level of endemism, which is, above all, remarkable at the tops of the isolated flat-topped table mountains – tepuis. Recently various international speleological expeditions to Churí-tepui explored the cave systems of this mountain. Here we describe a new genus of Baetidae recently found during the mentioned expeditions to Churí-tepui and Auyán-tepui. Parakari n. gen. can be distinguish from the other genera of this family, among other characters, in the nymphs by the absence of abdominal gills I, tarsal claws with subapical denticle larger than the others, right mandible with prostheca bifid and pectinate and with incisors positioned in obtuse angle to mola area, lingua with a tuft of setae, segment II of maxillary palpi with a concavity and a hole apically and segment II of labial palpi with a strong distomedial projection. In the adults the hind wings are absent and genitalia with segment II of forceps with a constriction, segment III elongate and long. Two new species are included in this genus; each one was collected at different tepui. A key and illustrations are included.

On Schornikovdona gen. nov. (Ostracoda, Candonidae) from rheocrene springs in Texas (U.S.A.)

Crustaceana ◽  
2017 ◽  
Vol 90 (11-12) ◽  
pp. 1443-1461 ◽  
Author(s):  
Okan Külköylüoğlu ◽  
Mehmet Yavuzatmaca ◽  
Derya Akdemi̇r ◽  
Peter H. Diaz ◽  
Randy Gibson
Keyword(s):  
New Species ◽  
Type Species ◽  
New Genus ◽  
Terminal Segment ◽  
The Other ◽  
Surface Normal ◽  
Diagnostic Characteristics ◽  
The Family ◽  
Sensory Seta

A new candonid genus,Schornikovdonagen. nov., with its type speciesSchornikovdona bellensissp. nov., is described from rheocrene springs of Bell County, Texas. It is designated to the tribe Candonini due to the smooth carapace surface, normal pore openings with sensory seta, the presence of a 5-segmented first antenna, two long sexual bristles on the second antenna in males, the narrowly fused terminal segment of the Md palp, a long penultimate segment of the Mxl palp, two long and one short setae on the terminal segment of T3, the absence of an “e” seta on T3, the presence of a posterior seta on the uropod, the presence of 5 + 2 rows of spines on Zenker’s organ, and other characteristics found in the tribe. The main diagnostic characteristics separating the new genus from the other genera in the tribe are the shape of the carapace, the reduced numbers of segments in the first antenna, reduction or absence of exopodial setae in the second antenna, asymmetrical clasping organs, the uropod with one rod-shaped claw, the different shape of the hemipenis, and differences in parts of the chaetotaxy. Based on these differences, we proposeSchornikovdonagen. nov. as a new genus, with the new speciesS. bellensissp. nov., in the subfamily Candoninae in the family Candonidae.

Studies of Raspy Crickets: Magnumtergalis n. gen. a new gryllacrid genus with elongate male terminalia (Orthoptera: Gryllacrididae) from Colombia

Zootaxa ◽  
2020 ◽  
Vol 4896 (1) ◽  
pp. 123-130
Author(s):  
OSCAR J. CADENA-CASTAÑEDA ◽  
CÉSAR QUIROGA GIRALDO ◽  
CARLOS JULIO ARANGO DÍAZ ◽  
WOLFANG ANDRÉS RODRÍGUEZ SOTO
Keyword(s):  
Type Species ◽  
New Genus ◽  
The Other ◽  
Leaf Rolling ◽  
Colombian Andes ◽  
The Family ◽  
Central Cordillera

Magnumtergalis n. gen. a new genus from the Inter-Andean Valleys and midlands of the Colombian Andes’ central cordillera is described. Two very peculiar species are placed within this genus, M. aldarioarenasi n. sp. (type species) and M. albonigra n. comb. An unusual terminalia to the family Gryllacrididae characterizes this genus, in which the ninth tergite is noticeably prolonged, covering the other structures of the male terminalia. This is the first genus of leaf-rolling crickets described from the Neotropics in the last 80 years. 

The Trichostrongyle Genus Graphidioides

1925 ◽  
Vol 3 (3-4) ◽  
pp. 163-166 ◽  
Author(s):  
Thomas W. M. Cameron
Keyword(s):  
Type Species ◽  
New Genus ◽  
Posterior Extremity ◽  
Accessory Piece ◽  
The Other ◽  
The Family ◽  
To Receive

In 1923, the writer in studying some species of the family Trichostrongylidæ, had occasion to create a new genus Graphidioides to receive the form previously known as Graphidium affine (Megnin, 1895), Railliet and Henry, 1909. This species differs from the type species of the genus Graphidium on the following points: absence of cervical papillæ, shape of bursa and disposition of ventro-ventral rays, shape of accessory piece and spicules, shape of the ovejectors and vagina and posterior extremity of the female. In an addendum on the remaining species of Graphidium, G. rudicaudatum the following statement was made:—“Graphidium rudicaudatus R. & H., 1909, from Viscacia viscacia from Argentina resembles G. affinis very closely. It differs mainly by its smaller size, equal ovejectors, sharply pointed externo-dorsal ray and absence of an accessory piece. Its affinities to Graphidioides are so close, that the latter point requires re-investigation. The other points are only of specific value, and it is proposed to include it in this new genus. Should the absence of an accessory piece be confirmed, its position would require re-determination.”

Deniquelata barringtoniae gen. et sp. nov., associated with leaf spots of Barringtonia asiatica

Phytotaxa ◽  
2013 ◽  
Vol 105 (1) ◽  
pp. 11 ◽  
Author(s):  
HIRAN A. ARIYAWANSA ◽  
SAJEEWA S.N. MAHARACHCHIKUMBURA ◽  
SAMANTHA C.KARUNARATHNE ◽  
EKACHAI CHUKEATIROTE ◽  
ALI H. BAHKALI ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Genus ◽  
Sequence Data ◽  
Molecular Data ◽  
The Other ◽  
New Genus And Species ◽  
Leaf Spots ◽  
The Family ◽  
Pathogenicity Testing

Deniquelata barringtoniae gen. et sp. nov. (Montagnulaceae) forms numerous ascomata on distinct zonate leaf spots of Barringtonia asiatica (Lecythidaceae). We isolated this taxon and sequenced the 18S and 28S nrDNA. The result of phylogenetic analysis based on 18S and 28S nrDNA sequence data indicate that the genus belongs in the family Montagnulaceae, Dothideomycetes, Ascomycota. The ascomata are immersed, dark brown to black, with bitunicate asci and brown, muriform ascospores. Deniquelata is distinguished from the other genera in Montagnulaceae based on its short, broad, furcate and pedicellate asci, verruculose ascospores with short narrow pseudoparaphyses with parasitic naturee and this is also supported by molecular data. A new genus and species is therefore introduced to accommodate this taxon. We used isolates of this species to show via pathogenicity testing that the taxon is able to cause leaf spots when leaves are pin pricked.

scholarly journals A new freshwater crab of the family Hymenosomatidae MacLeay, 1838 (Crustacea, Decapoda, Brachyura) and an updated review of the hymenosomatid fauna of New Caledonia

2020 ◽  
Author(s):  
Danièle Guinot ◽  
Valentin De Mazancourt
Keyword(s):  
Papua New Guinea ◽  
New Genus ◽  
New Caledonia ◽  
Mitochondrial Gene ◽  
The Philippines ◽  
The Other ◽  
Inland Waters ◽  
Freshwater Species ◽  
New Genus And Species ◽  
The Family

A new genus and species, Richerius marqueti gen. et sp. nov., of a crab of the family Hymenosomatidae MacLeay, 1838 are described from the inland waters of New Caledonia based on several specimens collected in two streams at altitudes of 180 m and 500 m, respectively. Richerius marqueti gen. et sp. nov. was compared to the other freshwater species known in New Caledonia, Odiomaris pilosus (A. Milne-Edwards, 1873), and to species of Amarinus Lucas, 1980, a genus comprising many freshwater species in New Zealand, Australia, Indonesia, the Philippines, and Papua New Guinea, but never recorded in New Caledonia. The barcode fragment of the COI mitochondrial gene was sequenced for seven specimens of R. marqueti gen. et sp. nov., and all sequences were deposited in GenBank. A brief and updated review of the New Caledonian marine and freshwater hymenosmatid fauna is provided.

scholarly journals Two new tanaidaceans (Crustacea: Peracarida) from Portuguese submarine canyons (NE Atlantic, West Iberian Margin)

2021 ◽  
Vol 740 ◽  
Author(s):  
Álvaro García-Herrero ◽  
Patricia Esquete ◽  
Marina R. Cunha
Keyword(s):  
New Species ◽  
Deep Sea ◽  
New Genus ◽  
The Other ◽  
Ne Atlantic ◽  
Submarine Canyons ◽  
The Family ◽  
Two New Species ◽  
Water Depths ◽  
Iberian Margin

The Tanaidacea are ubiquitous and amongst the most abundant taxa in the deep sea. However, their diversity in submarine canyons remains largely unknown. Here, two new species and a new genus of Paratanaoidea are described. Paranarthrura cousteaui sp. nov. is distinguished by the combination of the following characters: post-cheliped sclerites not fused, presence of one seta in the maxilliped endite, one long midventral seta in cheliped, one penicillate seta in the basis of pereopods 4–6, uropod endopod bi-articulated and uropod exopod shorter than endopod article 1. This species was found at the upper reaches of three Portuguese canyons, Cascais, Setúbal and Nazaré Canyons, and the adjacent open slope, between 897 and 1001 m water depths. Tirana vallis gen. et sp. nov. presents a combination of the characters that define the other two genera of Paranarthrurellidae, Paranarthrurella and Armatognathia, but also unique characters within the family: the antenna, cheliped and uropod are more elongate than the rest of the species; the pereopods 4–6 carpus spines reach at least half of the length of the propodus and the propodus of pereopods 4–6 have ramified subdistal spines. This species was found at the middle reaches of Setúbal Canyon (3214–3219 m water depth).

scholarly journals A new genus and species of pinworm (Nematoda, Oxyuridae) from the gray mouse opossum, Tlacuatzin canescens

Parasite ◽  
2019 ◽  
Vol 26 ◽  
pp. 50
Author(s):  
F. Agustín Jiménez ◽  
Juan Manuel Caspeta-Mandujano ◽  
Sergio Albino-Miranda
Keyword(s):  
New Species ◽  
Small Area ◽  
New Genus ◽  
Dry Forest ◽  
The Other ◽  
New Genus And Species ◽  
American Museum ◽  
The Family ◽  
Unique Clade ◽  
Deciduous Dry Forest

Tlacuatzoxyuris simpsoni n. gen. n. sp. is described from the cecum of the gray opossum, Tlacuatzin canescens, a species endemic to the deciduous dry forest of Mexico. The digestive tracts of four specimens were examined for parasites; three of these were archived in the American Museum of Natural History and one was a live capture. Relative to the other four monotypic genera of pinworms known to infect opossums, the new genus is diagnosed on the basis of a round cephalic plate with a semicircular stoma surrounded by a rim. In addition, males feature a prominent cephalic vesicle not fully developed in females, accounting for sexual dimorphism. The new species includes small worms that feature a conspicuous, not reticulated cephalic vesicle and semicircular stoma and lateral alae with two crests. In addition, the postcloacal cuticle of males features a small area with ornamentation between cloaca and submedial papillae. Finally, both spicule and gubernaculum are relatively short. Although the eggs of Tlacuatzoxyuris n. gen. are unknown, the conspicuous differences in traits used in the diagnosis of genera prompted us to propose a new genus for the new species. This is the first species of Oxyuridae reported in mouse opossums outside South America, and the fifth species of the family occurring in didelphimorph marsupials. This is an example of the usefulness of documenting the diversity of parasites associated with this unique clade of mammals through the examination of preserved tissues.

The first fossil horntail wasp (Hymenoptera: Siricidae) from Lower Cretaceous Crato Formation in Brazil

2020 ◽  
Vol 3 (4) ◽  
pp. 382-389
Author(s):  
CORENTIN JOUAULT ◽  
JEAN-MARC POUILLON ◽  
ANDRÉ NEL
Keyword(s):  
Lower Cretaceous ◽  
New Genus ◽  
Sister Group ◽  
The Other ◽  
Northeastern Brazil ◽  
Crown Group ◽  
The Family ◽  
Group Relationships ◽  
Fossil Records ◽  
New Discovery

A new wood wasp, Cratosirex sennlaubi gen. et sp. nov., is described and figured from one specimen collected from the Lower Cretaceous Crato Formation in northeastern Brazil. This new genus is placed in the new siricid subfamily Cratosiricinae subfam. nov., based on a combination of plesiomorphic and autapomorphic characters. The presence of small and sub-equal forewing cells 1R1 and 2R1 is a synapomorphy with the extant subfamily Siricinae, absent in the other extinct subfamilies †Auliscinae and †Gigasiricinae, supporting a sister group relationships with the Siricinae. Our new discovery expands the distribution range of Siricidae fossil records, highlights the antiquity of the family, and emphasizes the need for more studies of this particular insect lineage in the Mesozoic deposits. Currently, all the representatives of the crown group of the extant Siricidae are Cenozoic.

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