A new species of Dinothenarus (Coleoptera: Staphylinidae) from Mexico

Zootaxa ◽  
2008 ◽  
Vol 1851 (1) ◽  
pp. 51
Author(s):  
QUIYARI J. SANTIAGO-JIMÉNEZ
Keyword(s):  
New Species ◽  
North America ◽  
Baja California ◽  
Biological Data ◽  
Range Extension ◽  
Central Mexico ◽  
High Mountains ◽  
Key To Species ◽  
A New Species

Dinothenarus (s. str.) amisadaiae Santiago-Jiménez, sp. n. is described based on specimens from Cofre de Perote Volcano, Veracruz. The habitus and aedeagus are illustrated and distributional and biological data provided. A key to species of Dinothenarus (s. str.) of America is also provided. The discovery of this species in the high mountains of central Mexico represents a significant range extension for the genus Dinothenarus, previously known in Mexico only from Baja California, and especially for the subgenus Dinothenarus (s. str.), previously known only from northern North America and Eurasia.

Review of the sulcacitus group of Euschistus (Pentatomidae: Pentatominae: Carpocorini) with description of the internal female genitalia and a new species

Zootaxa ◽  
2017 ◽  
Vol 4362 (3) ◽  
pp. 348 ◽  
Author(s):  
FILIPE MICHELS BIANCHI ◽  
KIM RIBEIRO BARÃO ◽  
JOCELIA GRAZIA
Keyword(s):  
New Species ◽  
Costa Rica ◽  
North America ◽  
External Genitalia ◽  
Identification Key ◽  
Female Genitalia ◽  
Key To Species ◽  
First Time ◽  
A New Species

Euschistus Dallas is comprised of 66 species in three subgenera. Species of the nominate subgenus occur mainly in Central and North America. Some groups of species have been proposed to Euschistus (Euschistus) based on general external and male genitalic morphologies. Here, we review the sulcacitus group providing illustrations and descriptions of the internal and external genitalia of both sexes, illustrating females for the first time. A new species, Euschistus (Euschistus) tacitus sp. nov. Bianchi & Grazia, from Mexico and Costa Rica is described. We also provide an identification key to species of the group. 

A new species of the genus Tricentrum Townes from Mexico (Hymenoptera: Ichneumonidae: Cryptini)

2007 ◽  
Vol 15 (2) ◽  
pp. 326-326
Author(s):  
D.R. Kasparyan ◽  
A. González Hernández
Keyword(s):  
New Species ◽  
North America ◽  
Key To Species ◽  
First Time ◽  
A New Species

The genus Tricentrum Townes is recorded for North America for the first time. A new species, T. mexicanum from Mexico is described. A key to species of the genus is given.

The first record of the mosasaur Hainosaurus (Reptilia: Lacertilia) from North America

1988 ◽  
Vol 25 (10) ◽  
pp. 1564-1570 ◽  
Author(s):  
Elizabeth L. Nicholls
Keyword(s):  
New Species ◽  
North America ◽  
Late Cretaceous ◽  
First Record ◽  
Range Extension ◽  
Pierre Shale ◽  
A New Species ◽  
Stratigraphic Range

Hainosaurus pembinensis, a new species of tylosaurine mosasaur, is described from the Pembina Member of the Pierre Shale (Campanian, Late Cretaceous) of Manitoba. Hainosaurus differs from Tylosaurus in having a larger number of vertebrae anterior to the chevron-bearing caudals, a greater length of the femur relative to the humerus, and a greater length of the external nares. Hainosaurus pembinensis is distinguished from other species of this genus by its long supratemporal fenestra and homodont dentition. This is the first record of Hainosaurus from North America and represents both a geographic and stratigraphic range extension for the genus.

A new species of the oligopygoid echinoidHaimeafrom the lower Eocene of Baja California Sur, Mexico

1994 ◽  
Vol 68 (4) ◽  
pp. 846-851 ◽  
Author(s):  
Richard L. Squires ◽  
Robert A. Demetrion
Keyword(s):  
New Species ◽  
North America ◽  
Baja California ◽  
Middle Part ◽  
Baja California Sur ◽  
Lower Eocene ◽  
Shallow Marine ◽  
First Occurrence ◽  
A New Species

The oligopygoid echinoidHaimea bajasurensisn. sp. is described from middle lower Eocene (”Capay Stage”) shallow-marine sandstones in the middle part of the Bateque Formation and shallow-marine limestones in the upper part of the Tepetate Formation, Baja California Sur, Mexico. The new species is both the earliest and the westernmost oligopygoid, and the first occurrence ofHaimeain North America.

New Neritidae from southwestern North America

1986 ◽  
Vol 60 (3) ◽  
pp. 636-655 ◽  
Author(s):  
Alan J. Cushing Woods ◽  
L. R. Saul
Keyword(s):  
New Species ◽  
North America ◽  
Early Cretaceous ◽  
Late Cretaceous ◽  
Baja California ◽  
Middle Eocene ◽  
Type Locality ◽  
Early Tertiary ◽  
Molluscan Fauna ◽  
A New Species

In southwestern Baja California Norte a new species of Early Tertiary Tethyan gastropod, Velates, V. vizcainoensis n. sp., occurs with a previously unknown intertidal molluscan fauna suggestive of an unprotected coastline of probable Paleocene age. Comparison of Velates vizcainoensis n. sp. to other forms previously assigned to Velates from southwestern North America suggests that “Nerita” cuneata Gabb of Late Cretaceous age probably belongs in Neritina (Dostia), as do N. (D.) aff. N. (D.) cuneata and N. (D.) escondita n. sp.Velates is probably derived from typical Otostoma and is an early Tertiary genus. Velates californicus Vokes, although originally described as being from the Llajas Formation of middle Eocene age, is from the upper Santa Susana Formation and probably is of late Paleocene age at its type locality.Two other neritid gastropods are present in the fauna with Velates vizcainoensis; namely, Corsania (Januncia) Janus n. subgen., n. sp. and Nerita (Theliostyla) n. sp.(?). Corsania Vidal, 1917, is a genus distinct from Otostoma and ranges from Early Cretaceous to Paleocene. Januncia n. subgen. has a Tethyan distribution and ranges from Maastrichtian through Paleocene.

scholarly journals A new species of Sigmodontinae (Rodentia) from the late Hemphillian of central Mexico, and comments on the possible radiation of this group

2019 ◽  
Vol 36 (3) ◽  
pp. 321-333
Author(s):  
Adolfo Pacheco-Castro ◽  
Oscar Carranza-Castañeda ◽  
Eduardo Jiménez-Hidalgo
Keyword(s):  
New Species ◽  
North America ◽  
Arid Ecosystems ◽  
Central Mexico ◽  
Great American Biotic Interchange ◽  
Molecular Phylogenetic ◽  
Molar Teeth ◽  
Stratigraphic Ranges ◽  
Diverse Groups ◽  
A New Species

The Sigmodontinae subfamily represents one of the most diverse groups of mammals in the world; this rodent group evolved in the open and arid ecosystems of the Miocene of North America and was the most successful legion of mammals in the Great American Biotic Interchange. Part of its diversification occurred in the Mexican Pliocene, in the Hemphillian-Blancan boundary, where Prosigmodon and Sigmodon species are very common. Recent molecular phylogenetic systematics research propose that Sigmodon is related to South American sigmodontines, while studies of classical morphometry in isolated molar teeth consider Prosigmodon as synonymy of Sigmodon, which modifies the biogeographic and chronostratigraphic interpretations of this group in America. In this paper, we describe a new species of Prosigmodon from the late Hemphillian (~4.89 Ma) of central Mexico based on jaws, maxillary, and complete isolated teeth. This is the most complete and austral record of the genus in North America. This species was compared with North American species of the Sigmodontinae and Neotominae subfamilies and we defined it as a new Prosigmodon species characterized by having a consistently present minute mesoloph in M1 and M2, in addition, there is an isolated metaconid from the protoconid in the m1 of young individuals. We performed a phylogenetic model focused on understanding the relationship between Prosigmodon (four species) and Sigmodon (eight species), where we included Baiomys (two species), Neotoma (two species), Peromyscus (two species), and Reithrodontomys (two species). Our results indicate that Prosigmodon is a monophyletic group if Sigmodon minor is included within the genus and P. chihuahuensis is excluded. The Mexican Prosigmodon species have more apomorphic characters with respect to S. minor and P. holocuspis. The species of Prosigmodon and Sigmodon are not closely related, Sigmodon is more related to the Neotoma species than the species of Baiomys, Prosigmodon, Reitrhodontomys, and Peromyscus. Based on the topology of our cladogram and the stratigraphic ranges of the species Sigmodontinae and Neotominae, we discuss that Baiomys, Prosigmodon, Reitrhodontomys, and Peromyscus probably diversified in the early Hemphillian, while Sigmodon and Neotoma did so during the late Pliocene.

LABOPIDEA UHLER IN NORTH AMERICA, WITH DESCRIPTIONS OF A NEW SPECIES AND A NEW GENUS (HETEROPTERA: MIRIDAE)

1979 ◽  
Vol 111 (7) ◽  
pp. 753-758 ◽  
Author(s):  
Leonard A. Kelton
Keyword(s):  
New Species ◽  
North America ◽  
New Genus ◽  
New Combinations ◽  
Key To Species ◽  
European Species ◽  
A New Species

AbstractLabopidea chloriza Uhler (1877) is synonymized with Tinicephalus simplex Uhler (1872). Labopidea brooksi n. sp. is described from Alberta and Saskatchewan. Orthotylus discolor Sahlberg, a European species now known to occur in North America, is transferred to Labopidea. Nine species currently placed in Labopidea are here removed from that genus. The new combinations are as follows: Labopidea atriseta Van Duzee is transferred to Hesperocapsus Knight, Orthotylus insignis Van Duzee is transferred to Ilnacorella Knight, Labopidea viridula Knight is transferred to Melanotrichus Reuter, and Labopidea utahensis Knight is synonymized with Diaphnidia heidemanni Knight (= Brachynotocoris heidemanni). Labopidicola n. gen. is described and Labopidea idahoensis Knight, L. planifrons Knight, L. ainsliei Knight, L. allii Knight, and L. geminata Johnston are transferred to it. Key to species of Labopidea is given.

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