scholarly journals A new species of rake-legged mite, Caeculus cassiopeiae (Prostigmata, Caeculidae), from Canada and a systematic analysis of its genus

ZooKeys ◽  
2020 ◽  
Vol 926 ◽  
pp. 1-23
Author(s):  
Jared Bernard ◽  
Lisa M. Lumley ◽  
Matthias Buck ◽  
Tyler P. Cobb
Keyword(s):  
New Species ◽  
North America ◽  
Geographical Distribution ◽  
Character State ◽  
State Matrix ◽  
Systematic Analysis ◽  
One New Species ◽  
A New Species

The genus Caeculus Dufour (Prostigmata, Caeculidae) contains 19 previously described species, most of which are found in North America, and for which no comprehensive phylogenetic treatment exists. Here, one new species from Alberta, Canada, is described: Caeculus cassiopeiae Bernard & Lumley, sp. nov., and another caeculid known to be present in Canada is documented. The new species is characterized within the genus with a character state matrix, from which an updated key is produced. A systematic analysis of all 20 species based on morphological and geographical distribution traits obtained from literature represents the first phylogenetic review of the genus.

The Dolichopus planitarsis species group in the Palearctic Region with the description of a new species from the Russian Altai (Diptera: Dolichopodidae)

Zootaxa ◽  
2009 ◽  
Vol 2268 (1) ◽  
pp. 59-64 ◽  
Author(s):  
ANATOLII V. BARKALOV ◽  
OLEG P. NEGROBOV ◽  
IGOR YA. GRICHANOV
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Species Group ◽  
Altai Mountains ◽  
Palearctic Region ◽  
One New Species ◽  
A New Species ◽  
Russian Altai

The Dolichopus planitarsis species group in the Palearctic Region is defined and reviewed. It comprises eight species including one new species, Dolichopus tundrensis sp. nov., from the Altai Mountains. The species group is differentiated from other Dolichopus by the male mid tarsomere 5 which is black and flattened dorsoventrally with anterior and posterior rows of strong setae. A revised key to the species group is provided, as well as remarks on its geographical distribution.

On Some Parasitic Nematodes from Reptiles, Mainly from Ceylon

1966 ◽  
Vol 40 (1-2) ◽  
pp. 81-90 ◽  
Author(s):  
Colin G. Ogden
Keyword(s):  
New Species ◽  
Natural History ◽  
Geographical Distribution ◽  
British Museum ◽  
Parasitic Nematodes ◽  
One New Species ◽  
A New Species

Amongst the unidentified material in the nematode collections of the British Museum (Natural History) was the remainder of a collection, made by Dr. D. R. R. Burt from reptiles in Ceylon. One new species is now described and a list of seven previously known species is given below. In addition it is convenient to include the description of a new species of the genus Kalicephalus based on specimens obtained from a Varanus bengalensis which died at the Zoological Gardens, London, since the normal geographical distribution of this host is Ceylon and India.

ON THE NEMATODE GENUS RHABDOCHONA RAILLIET, 1916 (NEMATODA: SPIRUROIDEA)

1951 ◽  
Vol 29 (1) ◽  
pp. 1-16 ◽  
Author(s):  
L. P. E. Choquette
Keyword(s):  
New Species ◽  
North America ◽  
Geographical Distribution ◽  
Fish Species ◽  
World Wide ◽  
Wide Distribution ◽  
Systematic Position ◽  
Nematode Genus ◽  
A New Species ◽  
Host List

The systematic position of the genus Rhabdochona Railliet, 1916 and its diagnosis is reviewed. The genus comprising 33 species has a world-wide distribution and has been found, with one exception, in fish. Species from fish in North America are discussed and R. cascadilla Wigdor, 1918 is redescribed; R. laurentiana Lyster, 1940 is considered to be identical with the latter. A new species, R. milleri, is described. A host list and the geographical distribution of the 33 species of Rhabdochona so far recorded are given.

Freshwater planarians (Platyhelminthes, Tricladida) from the Palearctic section of the African continent: new records, with the description of a new species

Zootaxa ◽  
2012 ◽  
Vol 3182 (1) ◽  
pp. 1 ◽  
Author(s):  
ABDUL HALIM HARRATH ◽  
RONALD SLUYS ◽  
DJEMOI MERZOUG ◽  
MOHAMED YACOUBI-KHEBIZA ◽  
SALEH ALWASEL ◽  
...  
Keyword(s):  
New Species ◽  
North America ◽  
North Africa ◽  
New Records ◽  
Ejaculatory Duct ◽  
African Continent ◽  
North African ◽  
First Finding ◽  
One New Species ◽  
A New Species

On the basis of extensive surveys, an update is provided on the diversity, taxonomy, anatomy, and geographic distributionof five species of North African freshwater planarians, including the description of one new species. The new species Dug-esia tubqalis Harrath & Sluys, sp. nov. is mainly characterized by the following features: an elongated penis surroundedwith two penial folds at its base, the dorsal one bigger than the ventral ; an atrium divided into a male and common atriumby a kind of non-muscular ridge; a terminal expansion of the ejaculatory duct just before it opens at the tip of the penispapilla. The record of Dugesia sicula represents the first fully documented record of a naturally sexual, diploid (2n=18)population in North Africa. The first finding of Polycelis nigra on the African continent is documented. The genus Polyce-lis is recorded here with two species, Polycelis nigra and Polycelis felina. We also noted the presence of Schmidtea polychroa, which is widespread in Europe and introduced in North America.

The Dolichopus plumipes species group (Diptera, Dolichopodidae) in the Palaearctic Region with the description of a new species from Iran

2014 ◽  
Vol 2 (1) ◽  
pp. 1 ◽  
Author(s):  
Samad Khaghaninia ◽  
Yaser Gharajedaghi ◽  
Igor Ya. Grichanov
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Species Group ◽  
Palaearctic Region ◽  
Dorsal Area ◽  
East Azerbaijan ◽  
One New Species ◽  
North Western ◽  
A New Species ◽  
Eleven Species

The Dolichopus plumipes species group in the Palaearctic Region is redefined. It comprises eleven species including one new species, Dolichopus malekii sp. nov., from the East Azerbaijan province in north-western Iran. The species group is differentiated from other Dolichopus by the modified male mid tibia and/or mid basitarsus (except D. simplex). The mid tibia is often thin, having a longitudinal narrow dark streak (D. plumipes) or clear whitish yellow dorsal area in distal third, rarely simple or inconspicuously modified (D. discifer). Mid basitarsus is pennate or bearing elongate setae or simple. Other tarsomeres are usually simple (except D. discifer). A revised key to the species group is provided, as well as remarks on its geographical distribution.

Redescription of Eurycercus (Teretifrons) glacialis (Cladocera, Chydoridae), and description of a new species, E. (T.) nigracanthus, from Newfoundland, Canada

1990 ◽  
Vol 68 (10) ◽  
pp. 2146-2157 ◽  
Author(s):  
B. J. Hann
Keyword(s):  
New Species ◽  
North America ◽  
Kamchatka Peninsula ◽  
Type Material ◽  
Commander Islands ◽  
Bering Island ◽  
One New Species ◽  
A New Species

A redescription of Eurycercus (Teretifrons) glacialis Lilljeborg, 1901 is given, based solely on type material from Bering Island, Komandorski Islands (= Commander Islands), east of Kamchatka Peninsula, USSR. Eurycercus nigracanthus n.sp. is described from Newfoundland, and represents the most southerly known taxon in the subgenus Teretifrons. Although the subgenus is considered to be Holarctic in distribution, it is now seen that the range of E. glacialis is more restricted; in particular, at least one new species (and probably more) in the subgenus exists in North America.

THE TAXONOMY OF SOME NORTH AMERICAN SPECIES OF CHRYSOSPLENIUM L., SECTION ALTERNIFOLIA FRANCHET

1963 ◽  
Vol 41 (1) ◽  
pp. 85-103 ◽  
Author(s):  
J. G. Packer
Keyword(s):  
New Species ◽  
North America ◽  
Chromosome Number ◽  
Geographical Distribution ◽  
North American Species ◽  
World Species ◽  
Old World ◽  
Taxonomic Analysis ◽  
First Time ◽  
A New Species

A reappraisal is presented of the taxonomy of three of the four alternate-leaved species of Chrysosplenium occurring in North America, namely C. tetrandrum, C. iowense, and C. Rosendahlii, the latter a new species described for the first time. The investigation demonstrates that the species can be readily separated morphologically even as seedlings. Each morphological entity is characterized by a different chromosome number, C. tetrandrum 2n = 24, C. Rosendahlii 2n = 96. C. iowense 2n = c.120, and a distinctive geographical distribution. C. iowense, which has on occasions been regarded as identical with C. alternifolium var. sibiricum, is retained as a species in the absence of a modern taxonomic analysis of the Old World species C. alternifolium.

An Overlooked New Endemic Species of Rhipidocladum (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae) from Mexico

2021 ◽  
Vol 46 (2) ◽  
pp. 333-338
Author(s):  
Eduardo Ruiz-Sanchez ◽  
Christopher D. Tyrrell ◽  
J. Luis Vigosa-Mercado
Keyword(s):  
New Species ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Endemic Species ◽  
Wide Geographical Distribution ◽  
A New Species

Abstract— Rhipidocladum is the fourth most speciose genus in the bamboo subtribe Arthrostylidiinae. The species in this genus have a wide geographical distribution from North America (Mexico) to South America (Argentina). In Mexico, there are five Rhipidocladum species, two of which are endemic. During a recent review of herbaria, we found some specimens of Rhipidocladum from Guerrero, Jalisco, and Nayarit that do not fit morphologically with any of the five Rhipidocladum species presently known in Mexico nor any other species in the genus. Here we describe and illustrate Rhipidocladum barbinode, a new species endemic to Mexico. We additionally provide an updated morphological key to the Rhipidocladum species of Mexico.

A new species of Cyrtopodium (Orchidaceae: Cyrtopodiinae) from Belize

Phytotaxa ◽  
2019 ◽  
Vol 424 (2) ◽  
pp. 71-86 ◽  
Author(s):  
GUSTAVO A. ROMERO-GONZÁLEZ ◽  
GERMÁN CARNEVALI ◽  
RODRIGO DUNO ◽  
WILLIAM R. CETZAL-IX ◽  
IVÓN M. RAMÍREZ-MORILLO ◽  
...  
Keyword(s):  
New Species ◽  
North America ◽  
Central America ◽  
Geographical Distribution ◽  
Comparative Anatomy ◽  
Abscission Layer ◽  
The Caribbean ◽  
A New Species

A new species of Cyrtopodium from Belize, C. vestitum, is described and illustrated. Its flowers are indistinguishable from those of Cyrtopodium macrobulbon, but the pseudobulbs are relatively shorter and thicker, ovoid ellipsoid, bearing proportionately more, densely packed internodes, and the leaves do not present an articulation, i.e., an abscission layer, between the sheath and the blade and are thus marcescent. A comparative anatomy study of this tissue is presented, contrasting its presence in C. macrobulbon and the lack thereof in the new species. This species should be considered Endangered (EN) because of its restricted geographical distribution in central Belize. An updated key to the species of Cyrtopodium from North America, the Caribbean, and Central America is also included.

Taxonomic studies of two genera, Elongationa gen. nov. and Midoria Kato (Hemiptera: Cicadellidae: Ledrinae), with two new species from China

Zootaxa ◽  
2017 ◽  
Vol 4294 (3) ◽  
pp. 361 ◽  
Author(s):  
JING SUN ◽  
WEIJIAN HUANG ◽  
YALIN ZHANG
Keyword(s):  
New Species ◽  
Key To Species ◽  
Two New Species ◽  
Taxonomic Studies ◽  
One New Species ◽  
A New Species

Elongationa gen. nov., a new leafhopper genus (Hemiptera: Cicadellidae: Ledrinae) with one new species, E. hyalina sp. nov., is described and illustrated in detail. A checklist and key to species in the genus Midoria are provided including a new species, Midoria curvidentata sp. nov., described in this paper.  

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