Lectotypification of the monotypic genus Pseudodichanthium (Andropogoneae:  Poaceae)

Phytotaxa ◽  
2019 ◽  
Vol 415 (3) ◽  
pp. 150-152
Author(s):  
ARJUN PRASAD TIWARI ◽  
ALOK CHORGHE
Keyword(s):  
Arabian Peninsula ◽  
Single Species ◽  
Monotypic Genus ◽  
Monsoon Forests

The monotypic genus Pseudodichanthium Bor (1940: 272) is represented by the species Pseudodichanthium serrafalcoides (Cooke & Stapf 1908: 450) Bor (1940: 272) occurring in India and the Oman (Clayton et al. 2006). In India, the species is distributed in the Ahmednagar, Khandala, Kolhapur, Mahableshwar, Pune, Purandhar Fort, Raigad, Ratnagiri and Satara. Singh et al. (2015) have been reported this genus as endemic to India. The present investigation reveals that it is not endemic to India, and also occurs in the Saharo-Arabian region, in the country of Oman (Ghazanfar, 1992). The single species, P. serrafalcoides, is found in monsoon forests. Oman tends to have affinities with India in terms of climate in contrast to most of the Arabian Peninsula whose affinities are closer to continental Africa. Pseudodichanthium has been derived from Dichanthium Willemet (1796: 11) because of its unusual morphology characterised by the scarious lower glumes which are broadly winged with inflexed margins.

Further Studies of Lung Parasites (Nematoda) From Australian Marsupials.

1984 ◽  
Vol 32 (2) ◽  
pp. 283 ◽  
Author(s):  
DM Spratt
Keyword(s):  
New South ◽  
Single Species ◽  
Northern Territory ◽  
Trichosurus Vulpecula ◽  
Monotypic Genus ◽  
New Host ◽  
Phascolarctos Cinereus ◽  
Histological Sections ◽  
South Wales ◽  
Host Parasite

Seven new taxa in two families of metastrongyloid nematodes are described from the lungs of five host species belonging to the Dasyuridae, Phalangeridae and Macropodidae. Filaroides (Filaroides) athertonensis, sp. nov., (Filaroididae) is described from Thylogale stigmatica Gould in north Queensland. The following species of Marsupostrongylus Mackerras & Sandars, 1953, (Angiostrongylidae) are described as new: M. parallelus, sp. nov., from Satanellus hallucatus (Could) in the Northern Territory; M. pseudominesi, sp. nov., from Trichosurus vulpecula johnstonii (Ramsay) in north Queensland; M. vandiemeni, sp. nov., from macro pus rufogriseus rufogriseus (Desmarest) in Tasmania; and M. wallabiae, sp. nov., from Wallabia bicolor (Desmarest) and Macropus rufogriseus banksianus (Quoy & Gaimard) in New South Wales. To the formerly monotypic genus Filostrongylus Mackenas, 1955, (Angiostrongylidae) is added F. tridendriticus, sp. nov., described from Trichosurus vulpecula (Kerr) in Tasmania. The genus Cosmostrongylus (Angiostrongylidae) is described as new, with a single species C. conspectus, sp. nov., from Thylogale stigmatica Gould in north Queensland. Durikainema sp. (Muspiceoidea: Robertdollfusidae) is diagnosed in histological sections of the lungs of Phascolarctos cinereus (Goldfuss), Macropus agilis (Could) and M. giganteus Shaw. Keys to the genera of lung parasites and to all species of Filaroides, Marsupostrongylus and Filostrongylus known from Australian marsupials, new host and new geographic records of known taxa, and a host-parasite list of lung parasites of Australian marsupials, including those known only from histological sections of lung tissue, are provided.

Studies in Australian Tettigoniidae: New genera and species from North Queensland (Tettigoniidae; Conocephalinae; Armadillagraeciini trib. nov. and Agraeciini; Listroscelidinae; Requenini)

Zootaxa ◽  
2012 ◽  
Vol 3173 (1) ◽  
pp. 1 ◽  
Author(s):  
DCF RENTZ ◽  
YOU NING SU ◽  
NORIHIRO UESHIMA
Keyword(s):  
New Species ◽  
Prescribed Burning ◽  
Single Species ◽  
Northern Territory ◽  
New Genera ◽  
Monotypic Genus ◽  
Distribution Maps ◽  
North Eastern ◽  
New Tribe ◽  
A New Species

A new tribe of the Conocephalinae, Armadillagraeciini Rentz, Su, Ueshima is described to include three known Australiangenera: Armadillagraecia, Kapalgagraecia and Lichenagraecia gen. nov. Lichenagraecia gen. nov. is the eastern repre-sentative of the tribe, the others from the Northern Territory, northern Western Australia and western Queensland. Threenew genera in the tribe Agraeciini are described from the rainforests of north-eastern Queensland, Australia. Ingrischa-graecia gen. nov. is known from a single species, I. iterika sp. nov. Emeraldagraecia gen. nov. is known from two spe-cies, E. munggarifrons and E. windsorana spp. nov. Miniagraecia gen. nov. is described from two species: M. milyali andM. goorijupa spp. nov. In the Listroscelidinae; Requenini, a new species of the previously monotypic genus Xingbaoia,X. irvineorum sp. nov. is described from two localities in peril from repeated prescribed burning. Distribution maps, keys, measurements, song patterns and cytological observations are provided for most species.

Aurum, a new monotypic genus of Cetoniinae (Coleoptera: Scarabaeidae) endemic to Western Australia, Australia

Zootaxa ◽  
2019 ◽  
Vol 4683 (2) ◽  
pp. 277-285 ◽  
Author(s):  
PAUL M. HUTCHINSON ◽  
CHRISTIAN H. MOESENEDER
Keyword(s):  
New Species ◽  
Western Australia ◽  
New Genus ◽  
Single Species ◽  
Monotypic Genus

The flower beetle genus Aurum new genus (Coleoptera: Scarabaeidae: Cetoniinae: Schizorhinini: Schizorhinina) is described. Aurum is endemic to Australia, and contains a single species, Aurum leonorensis new species, from Western Australia. The genus is compared to the most closely related Australian flower beetle genera, Diaphonia Newman, 1840, Aphanesthes Kraatz, 1880, and Chondropyga Kraatz, 1880. Ecological observations and the collecting localities are detailed for Aurum leonorensis. 

Female gametophyte and seed development in Musella lasiocarpa (Musaceae), a monotypic genus endemic to Southwestern China

2007 ◽  
Vol 85 (10) ◽  
pp. 964-975 ◽  
Author(s):  
Chun-Ying Xue ◽  
Hong Wang ◽  
De-Zhu Li
Keyword(s):  
Seed Development ◽  
Female Gametophyte ◽  
Wild Population ◽  
Embryo Sac ◽  
Single Species ◽  
Ex Situ ◽  
Southwestern China ◽  
Conservation Strategies ◽  
Female Sterility ◽  
Monotypic Genus

Musella is a monotypic genus composed of a single species, Musella lasiocarpa (Franch.) C.Y. Wu ex H.W. Li, endemic to Southwestern China. The genus status of Musella remains controversial. Musella had been placed first in Musa , then in Ensete , and back to Musa before its monotypic status was recognized. Musella was reported to be extinct in the wild and maintained through cultivation only via vegetative propagation through sprouting of rhizomes. In this study, female gametophyte and seed development of Musella are described to assess its systematic position and possible reasons why the wild population is now extinct. The ovules are anatropous, bitegmic, and crassinucellar. The micropyle is formed by both integuments. The megaspore mother cell undergoes meiotic division and forms a linear megaspore triad or more rarely, a T-shaped megaspore tetrad. The chalazal megaspore develops into a Polygonum type embryo sac. A nucellar pad forms, and a hypostase differentiates. Fertilization is porogamous. Endosperm formation is of the nuclear type. The zygote degenerates and so the process by which the embryo develops, if it does, remains unclear. An operculum, micropylar collar, and chalazal chamber form in mature seeds. The storage tissue is mainly endosperm containing large, compound starch grains and some perisperm. The seed coat has lignified exotestal cells, 25–30 cell layers of sclerotic mesotestal cells, and unspecialized endotesta cells; the tegment consists of two layers of longitudinally elongated cells. The seed is inviable. After comparison with the other Musaceae s. str. taxa using embryological and botanical features, we conclude that Musella should be a distinct genus. Female sterility in Musella may be the main reason why the wild population is extinct. Based on these findings, we propose conservation strategies for this endemic species, including habitat protection as well as ex-situ conservation.

Biodiversity of the aculeate wasps (Hymenoptera: Aculeata) of the Arabian Peninsula: Chrysidoidea, Embolemidae

Zootaxa ◽  
2020 ◽  
Vol 4754 (1) ◽  
pp. 129-130
Author(s):  
MASSIMO OLMI
Keyword(s):  
Arabian Peninsula ◽  
Single Species

An updated checklist of the Arabian species of Embolemidae is provided here. The list includes a single species: Embolemus harteni Olmi, 1997. Distributions, both on the Peninsula and extra-limital, are provided; this species is not endemic to the Arabian Peninsula. 

A new genus and species of Aoridae (Amphipoda, Senticaudata), Propejanice lagamarensis gen. nov. sp. nov. from Brazil

Zootaxa ◽  
2019 ◽  
Vol 4629 (2) ◽  
pp. 287-293
Author(s):  
ALAN A. MYERS ◽  
ANDREA DESIDERATO
Keyword(s):  
New Genus ◽  
Single Species ◽  
Sao Paulo ◽  
São Paulo ◽  
Monotypic Genus ◽  
New Genus And Species

A new monotypic genus of aorid amphipod Propejanice gen. nov. is described and figured from material collected in Brazil. The single species, P. lagamarensis sp. nov. was collected from artificial plates suspended in the sea in Paraná and Sao Paulo States, Brazil. The new genus appears to be morphologically closest to the genus Janice Griffiths, 1973 from Moçambique, from which it differs in the carpochelate male gnathopod 1. Both genera are phylogenetically close to the genus Grandidierella Coutière, 1904. 

Taxonomic revision of the monotypic genus Acyphus Heller (Coleoptera: Curculionidae) with comments on infraspecific variation

Zootaxa ◽  
2006 ◽  
Vol 1312 (1) ◽  
pp. 59 ◽  
Author(s):  
ANALIA A. LANTERI ◽  
M. GUADALUPE DEL RIO
Keyword(s):  
Taxonomic Revision ◽  
Single Species ◽  
Monotypic Genus ◽  
Southern Brazil ◽  
North Central ◽  
Infraspecific Variation ◽  
Line Drawings ◽  
Central Argentina ◽  
Senior Synonym

Acyphus Heller, 1921 is a monotypic genus of Entiminae, Naupactini, ranging in north-central Argentina, southern Brazil, Paraguay and Uruguay. Its single species is mainly associated to trees of the genus Prosopis (Leguminosae), with several species ranging throughout the xerophytic forests of the Chacoan subregion. The genus is easily recognized by the presence of 20 elytral striae and the robust antennae, with strongly dilated scape, compressed from near base onwards. Acyphus renggeri (Labram & Imhoff) -senior synonym of Acyphus funicularis Hellershows variation in the distribution and density of the scaly vestiture of the elytra. There is a morphotype devoid of distinct scales and two squamose morphotypes with different irregular nebulose pattern. The paper includes descriptions of the genus and its only species, habitus photographs, line drawings of genitalia and mouth parts, and a map of distribution.

Obscuromyia, a remarkable new genus of the endemic Australian tribe Myiotrixini (Diptera : Tachinidae : Tachininae)

1998 ◽  
Vol 12 (5) ◽  
pp. 825 ◽  
Author(s):  
David Barraclough ◽  
James O'Hara
Keyword(s):  
Western Australia ◽  
New Genus ◽  
Single Species ◽  
Sister Group ◽  
Sister Group Relationship ◽  
Monotypic Genus ◽  
Segment 8 ◽  
Diagnostic Key ◽  
The Relationship

The endemic Australian tribe Myiotrixini is reviewed and a new genus andspecies described. The monotypic genus Myiotrixa Brauer & Bergenstamm, 1893, is known from all States except the NorthernTerritory, but has been most frequently collected from south-easternAustralia; the single species, M. prosopina, is aparasite of the native Australian cockroachPlatyzosteria castanea Brunner.Obscuromyia, a new monotypic genus of Myiotrixini fromnorthern Western Australia, is described and the relationship between it andMyiotrixa discussed. Striking synapomorphies of the maleand female terminalia corroborate the sister-group relationship betweenObscuromyia and Myiotrixa. These synapomorphies are the medially fused pregonites which encircle the base ofthe aedeagal apodeme in the male, and in the female the lack of sclerotisedsternites in most of the abdomen and ovipositor, and the non-extensible andnon-piercing ovipositor in which segment 8 forms a sclerotised cylinderincised dorsally and ventrally. A revised diagnosis of the Myiotrixini isprovided along with a diagnostic key to the two genera.

Taxonomic revison of the Australian genus Caridinides Calman (Crustacea : Decapoda : Atyidae)

1982 ◽  
Vol 33 (3) ◽  
pp. 575 ◽  
Author(s):  
MJ Smith ◽  
WD Williams
Keyword(s):  
Morphological Variation ◽  
Single Species ◽  
Monotypic Genus ◽  
The Status ◽  
Relationship Of ◽  
The Relationship

All available material of the genus Caridinides has been examined. It is found to belong to a single species, C. wilkinsi, which is redescribed and its known range in Australia extended. Morphological variation is low throughout the range. The relationship of Caridinides to other genera is discussed. The status of Caridinides as a distinct, but monotypic, genus is upheld.

scholarly journals THE TRUE GENERIC IDENTITY OF MASTIGOPROCTUS PELEGRINI ARMAS, 2000: A NEW GENUS OF ANTILLEAN WHIPSCORPIONS (THELYPHONIDA: THELYPHONIDAE)

2018 ◽  
Vol 17 ◽  
pp. 1-13
Author(s):  
Rolando Teruel
Keyword(s):  
Sexual Dimorphism ◽  
High Resolution ◽  
Natural History ◽  
Geographical Distribution ◽  
New Genus ◽  
Single Species ◽  
Morphological Characters ◽  
Monotypic Genus ◽  
Full Color ◽  
High Reduction

A new monotypic genus is herein described for the Western Cuban endemic whipscorpion Mastigoproctus pelegrini Armas, 2000. Its morphology is strikingly different from all other species of Mastigoproctus Pocock, 1894, but its generic placement remained unchallenged so far. Sheylayongium gen. n. is diagnosed from all other Mastigoproctinae Speijer, 1933 by a combination of several morphological characters of both sexes, e.g., high reduction of pedipalp armature and sexual dimorphism, carapace carination, unusual modification of sternite V, and female spermathecal structure. Its single species is thoroughly illustrated with high-resolution, full-color photographs, its geographical distribution is revised and updated, and new data are given on its natural history.

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