scholarly journals Three new species of the Eigenmannia trilineata species group (Gymnotiformes: Sternopygidae) from northwestern South America

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Edgar Esteban Herrera-Collazos ◽  
Aleidy M. Galindo-Cuervo ◽  
Javier A. Maldonado-Ocampo ◽  
Melissa Rincón-Sandoval
Keyword(s):  
New Species ◽  
South America ◽  
Geometric Morphometrics ◽  
Central America ◽  
Species Group ◽  
Coi Gene ◽  
Number Of Species ◽  
Southern Central ◽  
Taxonomic Approach ◽  
Three New Species

ABSTRACT Eigenmannia is one of the more taxonomically complex genera within the Gymnotiformes. Here we adopt an integrative taxonomic approach, combining osteology, COI gene sequences, and geometric morphometrics to describe three new species belonging to the E. trilineata species group from Colombian trans-Andean region. These new species increase the number of species in the E. trilineata complex to 18 and the number of species in the genus to 25. The distribution range of the E. trilineata species group is expanded to include parts of northwestern South America and southern Central America.

Three new species of Lachesilla in the rufa group (Psocodea: Psocomorpha: Lachesillidae) from the Sierra Tarahumara, Mexico

Zootaxa ◽  
2021 ◽  
Vol 5071 (2) ◽  
pp. 289-295
Author(s):  
ALFONSO NERI GARCÍA ALDRETE ◽  
JOSÉ ARTURO CASASOLA-GONZÁLEZ
Keyword(s):  
New Species ◽  
Species Group ◽  
The Third ◽  
Number Of Species ◽  
Sierra Tarahumara ◽  
Three New Species

Three species of Lachesilla, in species group rufa, from the Sierra Tarahumara, Chihuahua, Mexico, are here described and illustrated: L. byei n. sp., L. furthi n. sp., and L. raramuri n. sp. Two of them belong in Subgroup IIb of the species group, one showing affinities with L. sommermanae García Aldrete and L. yakima Mockford & García Aldrete, the second one showing affinity with L. salamana García Aldrete. The third species belongs in Subgroup I of the species group, showing affinities with L. aspera García Aldrete and L. chiricahua García Aldrete. The especies here described raise to seven the number of species of Lachesilla in the Sierra Tarahumara.  

Revision of the Neotropical genus Domodon Reemer (Diptera: Syrphidae), with description of three new species

Zootaxa ◽  
2019 ◽  
Vol 4648 (3) ◽  
pp. 523-536
Author(s):  
FERNANDO DA SILVA CARVALHO-FILHO ◽  
MARLÚCIA BONIFÁCIO MARTINS ◽  
MATHEUS TAVARES DE SOUZA ◽  
MENNO REEMER
Keyword(s):  
New Species ◽  
Costa Rica ◽  
South America ◽  
Central America ◽  
Male Genitalia ◽  
French Guiana ◽  
Type Material ◽  
Key To Species ◽  
Northern South America ◽  
Three New Species

The Syrphidae genus Domodon Reemer, 2013 so far included two species, D. zodiacus Reemer, 2013 and D. peperpotensis Reemer, 2014, both recorded only from Suriname. Additional specimens belonging to this genus have been collected in many other localities in South and Central America. In this paper, the genus is revised and three new species are described: D. caxiuana sp. nov. (northern South America), D. inaculeatus sp. nov. (northern South America), and D. sensibilis sp. nov. (Costa Rica). The distribution of D. peperpotensis is extended to include French Guiana. Photographs of the type material of the new species and illustrations of male genitalia of all species are provided, as well as a key to species. 

A revision of the genus Orchestia Leach, 1814 with the reinstatement of O. inaequalipes (K.H. Barnard, 1951), the designation of a neotype for Orchestia gammarellus (Pallas, 1776) and the description of three new species (Crustacea: Amphipoda: Talitridae: Talitrinae)

Zootaxa ◽  
2020 ◽  
Vol 4808 (2) ◽  
pp. 201-250
Author(s):  
ALAN A. MYERS ◽  
JAMES K. LOWRY
Keyword(s):  
New Species ◽  
North America ◽  
South America ◽  
Type Species ◽  
Pacific Coast ◽  
Species Group ◽  
Eastern North America ◽  
The Pacific ◽  
North Eastern ◽  
Three New Species

The amphipod genus Orchestia is revised. It now includes 10 species of which three are new: O. forchuensis sp. nov. from north-eastern North America and Iceland., O. perezi sp. nov. from Chile and O. tabladoi sp. nov. from Argentina. Orchestia inaequalipes (K.H. Barnard 1951) is reinstated. The type species of the genus, O. gammarellus is redescribed based on material from Fountainstown, Ireland and a neotype is established to stabilize the species. The species was originally described from a garden in Leiden, far from the sea. Its true identity is unknown and no type material exists. Orchestia gammarellus (Pallas, 1776) is shown to be a sibling species group with members in both hemispheres of the temperate Atlantic as well along the Pacific coast of South America. A hypothesis for the establishment of the current distribution of Orchestia species is presented that extends back to the Cretaceous. 

scholarly journals Two new species of Desmopachria Babington, 1841 in the D. convexa species group (Coleoptera, Adephaga, Dytiscidae, Hydroporinae, Hyphydrini)

ZooKeys ◽  
2020 ◽  
Vol 923 ◽  
pp. 65-77
Author(s):  
Kelly B. Miller
Keyword(s):  
New Species ◽  
Costa Rica ◽  
South America ◽  
Central America ◽  
Male Genitalia ◽  
Lateral Lobe ◽  
Species Group ◽  
Morphological Features ◽  
Two New Species

Two new species are described in the Desmopachria convexa species group in the Neotropical genus Desmopachria Babington: D. mancosp. nov. (Guyana), and D. mortimersp. nov. (Costa Rica). Two subgroups, the D. convexa-convexa and the D. convexa-signata groups are defined. Desmopachria convexa-convexa species are from North and Central America and have a subapical articulable lobe on the male lateral lobe that is large and elongate and extends well beyond the slender, oblique apex of the lateral lobe. Desmopachria convexa-signata species are from South America and have a subapical articulable lobe on the male lateral lobe that is small and discrete and does not extend beyond the truncate apex of the lateral lobe. The male genitalia of all recognized species in the D. convexa group are redrawn from the literature. New species are illustrated from specimens and described species have morphological features redrawn from published illustrations.

scholarly journals The Tachytrechus alatus species group (= Syntomoneurum Becker) revisited: new species and revised species group limits (Diptera: Dolichopodidae)

Zootaxa ◽  
2008 ◽  
Vol 1676 (1) ◽  
pp. 1
Author(s):  
SCOTT E. BROOKS ◽  
JEFFREY M. CUMMING
Keyword(s):  
New Species ◽  
South America ◽  
Species Group ◽  
Key To Species ◽  
Southern Mexico ◽  
Neotropical Species ◽  
Fore Femur ◽  
Three New Species

The Tachytrechus alatus species group is revised. The species group is defined within the genus Tachytrechus on the basis of possession of a strong basiventral bristle on the fore femur and very reduced pulvilli on the midand hindlegs of both sexes. Males also possess a strongly reduced vertical bristle, and a cluster of 2–3 strong bristles on both the fore femur and mid coxa. The T. alatus species group is now known from southern Mexico, Central and South America and comprises eight Neotropical species including three new species: Tachytrechus alatus (Becker), Tachytrechus analis (Parent), Tachytrechus costaricensis Brooks sp. nov., Tachytrechus dios Brooks sp. nov., Tachytrechus giganteus (Brooks), Tachytrechus peruicus Yang & Zhang, Tachytrechus transversus (Van Duzee) and Tachytrechus zumbadoi Brooks sp. nov. A revised key to species is provided, as well as remarks on the phylogeny and zoogeography of the group.

A new species of Obtusitermes (Isoptera, Termitidae, Nasutitermitinae) from South America

Zootaxa ◽  
2009 ◽  
Vol 1993 (1) ◽  
pp. 61-68 ◽  
Author(s):  
CAROLINA CUEZZO ◽  
ELIANA M. CANCELLO
Keyword(s):  
New Species ◽  
South America ◽  
Trinidad And Tobago ◽  
Central America ◽  
Strong Evidence ◽  
Southern Central ◽  
Northern South America ◽  
A New Species

Obtusitermes Snyder is a genus endemic to the Neotropics, restricted to northern South America and southern Central America. Obtusitermes panamae Snyder was described from Quipo, Panama. Herein, we describe Obtusitermes formosulus, n. sp., from Venezuela and Trinidad and Tobago, based on the dimorphic soldier and polymorphic worker. These descriptions provide strong evidence that Parvitermes bacchanalis Mathews should not be included in Obtusitermes.

Rubiacearum Americanarum Magna Hama Pars XLIV: Review of the Palicourea pilosa Group, With Some New Species and a New Subspecies (Palicoureeae)

2019 ◽  
Vol 27 (2) ◽  
pp. 102-130
Author(s):  
Charlotte M. Taylor
Keyword(s):  
New Species ◽  
South America ◽  
Central America ◽  
Ongoing Study ◽  
Similar Species ◽  
New Subspecies ◽  
Neotropical Species ◽  
Southern Central ◽  
New Nomenclatural Combinations ◽  
Made In

Palicourea Aubl. (Rubiaceae) comprises a large group of Neotropical species, many of which were previously classified in Psychotria L. subg. Heteropsychotria Steyerm. Ongoing study of those species here clarifies the identity of Palicourea pilosa (Ruiz & Pav.) Borhidi, Palicourea hazenii (Standl.) Borhidi, and several similar species, and classifies them all in Palicourea subg. Montanae C. M. Taylor sect. Montanae ser. 4 subser. f. Twenty-five species found from southern Central America through western South America are studied here. The circumscription of Palicourea pilosa is narrowed, four new nomenclatural combinations are made in Palicourea, and 10 new species and one new subspecies are described.

Rubiacearum Americanarum Magna Hama Pars XLVIII: A New View of Palicourea sect. Axillares and Description of Some New Species (Palicoureeae)

2021 ◽  
Vol 29 ◽  
pp. 85-111
Author(s):  
Charlotte M. Taylor
Keyword(s):  
New Species ◽  
South America ◽  
Central America ◽  
Species Status ◽  
The Andes ◽  
Southern Ecuador ◽  
Center Of Diversity ◽  
Infraspecific Taxa ◽  
Southern Central ◽  
Molecular Characters

Many of the species classified in Psychotria L. subg. Heteropsychotria Steyerm. (Rubiaceae), including the species of Psychotria ser. Axillares (Hook. f.) Steyerm., have been shown to belong to Palicourea Aubl. based on morphological and molecular characters. This section is now treated as Palicourea sect. Axillares (Hook. f.) Borhidi, and includes 14 species found from southern Central America through the Andes of northwestern and western South America with a center of diversity in eastern Colombia and western Venezuela. This section is characterized by the combination of laminar, well-developed, bilobed stipules and mostly capitate, pseudoaxillary or sometimes terminal, mostly sessile inflorescences with numerous well-developed bracts that enclose the flowers but without enlarged involucral bracts. It is circumscribed differently here than it is by Borhidi. The nomenclatural summary, key, and diagnostic discussions that separate the species included here are based on several new taxonomic circumscriptions. No infraspecific taxa are recognized in Pal. axillaris (Sw.) Borhidi, but one of its varieties from Venezuela is raised to species status as Pal. villipila (Steyerm.) C. M. Taylor. The circumscription of Pal. rosacea (Steyerm.) Borhidi is expanded, and four species are newly described here: Pal. aristata C. M. Taylor from the Andes of southern Ecuador, Pal. quibdoana C. M. Taylor from northwestern Colombia, Pal. santanderiana C. M. Taylor from the Andes of eastern Colombia, and Pal. winfriedii C. M. Taylor from northern Venezuela.

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