On two new species of tick

Parasitology ◽  
1948 ◽  
Vol 38 (4) ◽  
pp. 243-246 ◽  
Author(s):  
Frank A. Turk

Both species of tick which are described in the present paper are members of insular faunas and demonstrate remarkably well the tendency, shown by these parasites in geographical isolation, to species formation. In this connexion it is perhaps worth quoting what Cooley & Kohls (1945) say concerning this subject in their recent work on the genus Ixodes: ‘These studies’, they write on p. 1 of their introduction, ‘have revealed in considerable measure the more useful specific characters and the importance of a real appreciation of the significance of geographical range and variation in the differentiation of species.… In determination of species limits we have considered not only morphologic but also biologic factors such as host relationships and geographic distribution. No subspecies are recognized.’ There is little doubt but that geographical distribution will be found to play an almost equally important role in the genus Amblyomma.

The labyrinthodont Amphibia flourished from Upper Devonian times to the Rhaetic. Amongst them is a series of related forms—covering, perhaps, the longest time span to be found in fossil materials—whose earliest member is Actinodon from the French Coal Measures, and latest the cyclotosaurs from the Upper Trias of several countries. The material is good, most of it is South African, but important specimens come from many other parts of the world. The skull shows little change with time in the structure of the dorsal surface, but the palate and braincase change progressively, and the process is described. Some of the skulls have associated lower jaws, which are figured, and may help in the understanding of isolated lower jaws. Postcranial material is too rare to be taken into consideration. The series is important because its long range in time and worldwide geographical distribution make it valuable in the determination of the horizons of the rocks in which its members are found. Two new genera and two new species have been established.


Parasitology ◽  
1937 ◽  
Vol 29 (3) ◽  
pp. 395-398 ◽  
Author(s):  
Harley J. van Cleave

The present report is confined to the species found in Chinese amphibians by Faust in his field studies during the period from 1920 to 1925. Two new species of the genus Acanthocephalus are described in this paper and notes on their geographical distribution and host relationships are included along with observations on the occurrence of undetermined species of encysted larval Acanthocephala in amphibian hosts.


Zootaxa ◽  
2017 ◽  
Vol 4350 (3) ◽  
pp. 500
Author(s):  
JULISSA M. CHURATA-SALCEDO ◽  
LUCIA M. ALMEIDA ◽  
GUILLERMO GONZÁLEZ ◽  
ROBERT D. GORDON

The subgenus Sidonis Mulsant, 1850 is elevated to generic status and two new species from Brazil are described and illustrated: Sidonis bira sp. nov. and Sidonis biguttata sp. nov. New geographic distribution records are provided. In addition, lectotypes of Sidonis consanguinea (Mulsant, 1850) and S. guttata (Sicard, 1912) are designated. Illustrations of diagnostic characters from five of six species of the genus, comments on the differences from similar species and a key to all recognized taxa are included.  


Zootaxa ◽  
2018 ◽  
Vol 4531 (4) ◽  
pp. 451
Author(s):  
DIEGO AGUILAR FACHIN ◽  
MARTIN HAUSER

The Neotropical genus Himantigera James in James & McFadden, 1982, is revised. Two new species are described and illustrated—H. amauroptera nov. sp. (Costa Rica, Panama, Colombia), and H. xanthopoda nov. sp. (Mexico, Nicaragua, Costa Rica). Three species are transferred from Himantigera to Sargus Fabricius, 1798—S. dichrous (Schiner, 1868) comb. nov., S. flavoniger Lindner, 1928 comb. rev. and S. fulvithorax (Bigot, 1879) comb. nov. One species is transferred to Microchrysa Loew, 1855—M. splendens (Schiner, 1868) comb. nov. Himantigera jamesi Lindner, 1969 syn. nov. is proposed as a junior synonym of H. superba Lindner, 1949. The type species H. silvestris McFadden, 1982, as well as H. nigrifemorata Macquart, 1847 and H. superba Lindner, are herein redescribed and illustrated. Photographs of the type specimens of these three species are provided. Two unnamed species of Himantigera (sp. A and sp. B) are also described given that they have slight differences, but because we had only one specimen of each species, we did not officially describe them. This updates the total number of extant Himantigera from eight sensu Woodley (2001) to seven species. The species Merosargus apicalis Lindner, 1935, although never referred to the genus Himantigera or Himantoloba McFadden 1970, is also transferred to the genus Sargus. A key to all species of Himantigera and a map expanding geographical distribution of the genus are also presented, with the first records of the genus for Nicaragua, Colombia, Venezuela, Trinidad and Tobago, Ecuador and Bolivia. 


1956 ◽  
Vol 46 (4) ◽  
pp. 747-748 ◽  
Author(s):  
H. S. Leeson

Since the publication of the previous paper (Leeson, 1953), additional information has been accumulated on the geographical distribution of some of the Old World ticks of the genus Ornithodoros and two new species (zumpti and arenicolous) have been described. Much of this additional matter has been communicated to me by correspondents who have been kind enough to give permission for its publication here. Their names are enclosed in brackets after the new data to indicate the source and to these workers I tender my sincere thanks.


Zootaxa ◽  
2020 ◽  
Vol 4751 (1) ◽  
pp. 75-104
Author(s):  
MAURICIO M. ROCHA ◽  
ELIANA M. CANCELLO

In this contribution we present updates on the taxonomy and morphology of the South American species of Amitermes. Two new species are described: Amitermes bandeirai, sp. n., from Brazil, and Amitermes lilloi, sp. n., from Argentina. Amitermes nordestinus is a junior synonym of Amitermes aporema. The imago of A. aporema is described for the first time. Detailed comparative gut anatomy of the eight species is presented for the first time. The geographic distribution of Amitermes in South America is expanded and the distribution patterns of some species are discussed. 


Zootaxa ◽  
2020 ◽  
Vol 4755 (3) ◽  
pp. 401-453
Author(s):  
JÉSSICA PRATA ◽  
CYNTHIA LARA DE CASTRO MANSO ◽  
MARTIN LINDSEY CHRISTOFFERSEN

The study presents a review of the Dendrochirotida species from shallow waters of the northeastern coast of Brazil. A total of 1,268 specimens were analyzed and 24 species were recorded, which were classified into 16 genera of Cucumariidae, Psolidae, Phyllophoridae, and Sclerodactylidae. Detailed descriptions and figures of the taxonomic characters are provided to facilitate species identification. Notes on morphological variation, geographic distribution, and habitat are also provided. We suggest two new species for science, Thyone brasiliana sp. nov. and Havelockia nietae sp. nov., the new combination Parathyone braziliensis (Verrill, 1868) and the first record of Euthyonidiella trita (Sluiter, 1910) for the Brazilian coast. The bathymetric ranges are expanded for Coronatum baiensis, Euthyonidiella trita, Stolus cognatus, and Thyonidium seguroensis. 


Phytotaxa ◽  
2019 ◽  
Vol 411 (1) ◽  
pp. 39-48 ◽  
Author(s):  
VERÔNICA A. THODE ◽  
SÉRGIO AUGUSTO DE LORETO BORDIGNON

Two species of Glandularia from Rio Grande do Sul Brazilian state are described, G. rupestris V. Thode & Bordignon and G. sessilifolia V. Thode & Bordignon. Detailed morphological descriptions, geographical distribution, evaluation of their IUCN conservation status and photographs are presented. Comparison tables with morphologically similar species occurring in Rio Grande do Sul and an identification key to the species occurring in Brazil are also provided.


Zootaxa ◽  
2015 ◽  
Vol 3957 (5) ◽  
pp. 535 ◽  
Author(s):  
MA. MAGDALENA VÁZQUEZ ◽  
HANS KLOMPEN

Two new species of Opilioacaridae from Mexico are described, Neocarus chactemalensis sp. nov. and N. comalensis sp. nov., and new records for N. texanus Chamberlin & Mulaik and N. veracruzensis Vazquez & Klompen are presented. Relative positions of internal structures of the ovipositor, a highly variable character, are described based on comparisons of invaginated and evaginated ovipositors. A study of records of Opilioacaridae in Mexico shows that the group is distributed across a wide range of ecosystems and elevations, from dry, semi-desert to wet tropical forest, and coastal plains to the altiplano (>2,000m).


2005 ◽  
Vol 3 (4) ◽  
pp. 625-636 ◽  
Author(s):  
Leandro M. Sousa ◽  
Lúcia H. Rapp Py-Daniel

The genus and species Physopyxis lyra was originally described based on only one very distinctive specimen. Analysis of a larger number of specimens provided a more precise characterization of the genus and the type species. Additionally, two new species are described based on material already available in museums and new collections. Physopyxis lyra is characterized by having a well developed coracoid process with divergent tips, and only one series of spines on the lateral plates. Physopyxis ananas, new species, has a thin coracoid process, convergent, and more than one series of spines on the lateral plates. Physopyxis cristata, new species, is a slender species, characterized by an incomplete series of lateral plates and the presence of a middorsal series of spines formed by the tips of the vertebral neural spines. The poorly known geographic distribution of the genus Physopyxis is vastly enlarged to include various drainages of the Amazon and Essequibo basins.


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