The killer flies Coenosia Meigen (Diptera: Muscidae) of southern South America: the Coenosia chaetosa species group with two new species, and notes on male terminalia patterns

2021 ◽  
Vol 55 (23-24) ◽  
pp. 1499-1519
Author(s):  
Luciano Damián Patitucci ◽  
Marcia Souto Couri ◽  
Pablo Ricardo Mulieri
Keyword(s):  
New Species ◽  
South America ◽  
Species Group ◽  
Southern South America ◽  
Two New Species

The bee genus Psaenythia in northern South America (Hymenoptera: Andrenidae)

2021 ◽  
Vol 157 (3) ◽  
pp. 153-167
Author(s):  
Michael S. Engel ◽  
Diego A. Guevara ◽  
Rodulfo Ospina-Torres ◽  
Victor H. Gonzalez
Keyword(s):  
New Species ◽  
South America ◽  
Southern South America ◽  
Two New Species ◽  
Northern South America ◽  
First Time

The diverse bee genus Psaenythia Gerstaecker (Panurginae, Protandrenini), hitherto known from central and southern South America, is recorded from northern South America for the first time. Two new species are described: Psaenythia diceratops, sp. n., from northeastern Colombia, and P. guaricoensis, sp. n., from central Venezuela. The males of P. diceratops are noteworthy for possessing prominent apicolateral clypeal horns, elongate scythe-like mandibles, and displaying macrocephaly with strong dimorphism. Keywords: Andrenidae, Anthophila, Apoidea, Panurginae, taxonomy, Neotropical

The genus Acellomyia González, a new taxonomic arrangement of its species and descriptions of a new genus and two new species from southern South America (Diptera: Tabanidae: Diachlorini)

Zootaxa ◽  
2017 ◽  
Vol 4337 (4) ◽  
pp. 523
Author(s):  
CHRISTIAN R. GONZÁLEZ
Keyword(s):  
Species Richness ◽  
New Species ◽  
South America ◽  
New Genus ◽  
Morphological Diversity ◽  
Southern Chile ◽  
Key To Species ◽  
Southern South America ◽  
Two New Species ◽  
Morphological Differences

The tabanid tribe Diachlorini (Diptera) is the most genus-rich tribe in the Tabanidae; the tribe is cosmopolitan, but the greatest species richness and morphological diversity are found in the Australasian and Neotropical Regions. A new arrangement for the species of Acellomyia González is given; Acellomyia lauta (Hine) is transferred to a new genus, Montismyia gen.n., based on its morphological differences from Acellomyia and geographical distribution. The morphological differences between Acellomyia and Montismyia gen. n. are discussed. Two new species, Acellomyia casablanca sp.n. and Acellomyia puyehue sp.n., are described from specimens collected in southern Chile. Comparison of the morphology of Acellomyia paulseni mapuche (Coscarón & Philip) stat.nov. indicate that they should be elevated to species rank. A key to species of Acellomyia is provided and diagnostic characters are illustrated. 

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 microps group of Lutzomyia França with descriptions of two new species from South America (Diptera: Psychodidae: Phlebotominae)

1984 ◽  
Vol 79 (4) ◽  
pp. 425-431 ◽  
Author(s):  
D. G. Young ◽  
J. r. Arias
Keyword(s):  
New Species ◽  
South America ◽  
Species Group ◽  
Sand Flies ◽  
Phlebotomine Sand Flies ◽  
Male And Female ◽  
Two New Species ◽  
Northern Brazil

Six species of phlebotomine sand flies in the genus Lutzomyia França from South America are included in the newly-created species group microps. References and illustrations of the species are given, including descriptions of two new forms - L. nematoducta n.sp., male and female from northern Brazil, and l. preclara n.sp. male from Colombia and Peru. The males in the species group microps are keyed.

scholarly journals New records of Platynectes (s. str.) diving beetles from South America with description of two new species (Coleoptera: Dytiscidae: Agabinae)

2020 ◽  
pp. 437-447
Author(s):  
Andrew E. Z. Short ◽  
Cesar J. Benetti ◽  
Grey T. Gustafson
Keyword(s):  
New Species ◽  
South America ◽  
New Records ◽  
Species Group ◽  
Individual Species ◽  
Guiana Shield ◽  
Mato Grosso ◽  
Diving Beetles ◽  
Two New Species ◽  
Distributional Knowledge

Diving beetles in the genus Platynectes (s. str.) in South America are relatively large and charismatically colored, yet relatively rare in museum collections. Recent fieldwork in northern and central South America has resulted in the collection of hundreds of new specimens that substantially expand our distributional knowledge of the genus. Here, we provide new distributional records for Platynectes decemnotatus (Aubé, 1838), P. garciai Gustafson, Short & Miller, 2016, P. submaculatus (Laporte, 1835), and P. tafelbergensis Gustafson, Short & Miller, 2016. In addition, two new species were identified and described herein: Platynectes bicolor sp. nov. of the P. ornatifrons species group from Brazil (Goiás and Mato Grosso do Sul), and P. colombicus sp. nov. of the P. submaculatus species group from the Guiana Shield region of eastern Colombia. These new records suggest that Platynectes (s. str.) is likely widespread across the Brazilian and Guiana Shield regions of the continent, and that some individual species have substantial range sizes of nearly 2000 km. An updated key to the species groups of Neotropical Platynectes (s. str.) and to the species of P. submaculatus species group are provided.

Two new species segregated from Hymenophyllum tunbrigense (Hymenophyllaceae) in southern South America, based on morphological, anatomical, molecular and distributional evidence

Phytotaxa ◽  
2017 ◽  
Vol 303 (3) ◽  
pp. 218 ◽  
Author(s):  
CRISTIAN LARSEN ◽  
MARCELO D. ARANA ◽  
JUAN M. ACOSTA ◽  
M. MÓNICA PONCE
Keyword(s):  
New Species ◽  
South America ◽  
Endemic Species ◽  
Southern Cone ◽  
Southern South America ◽  
Two New Species ◽  
Mountain System ◽  
Endemic Taxon ◽  
First Time ◽  
North Western

The cosmopolitan species Hymenophyllum tunbrigense was traditionally represented in southern South America by two allopatric varieties: H. tunbrigense var. tunbrigense in the Andean Patagonian forests of Argentina and Chile, and H. tunbrigense var. cordobense, an endemic taxon restricted to the mountain system of central and north-western Argentina. Given the diagnosable differences between these two taxa, and between these taxa and the European and African entity, based on morphological, anatomical, molecular, ecological and distributional evidence, we exclude H. tunbrigense for Southern Cone, propose to revalidate the name Hymenophyllum asperulum for the species present in the Magellanic and Valdivian forests and elevate H. tunbrigense var. cordobense to species rank. We consider these two taxa as endemic species, closely related to the widespread H. tunbrigense. We also cite Hymenophyllum cordobense for first time for the flora of Bolivia.

scholarly journals Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil

2004 ◽  
Vol 2 (2) ◽  
pp. 55-60 ◽  
Author(s):  
José Francisco Pezzi da Silva
Keyword(s):  
New Species ◽  
South America ◽  
Southern Brazil ◽  
Body Depth ◽  
Southern South America ◽  
Two New Species ◽  
Fin Rays ◽  
Eye Diameter ◽  
Fin Length ◽  
Pelvic Fin

Two new species of Bryconamericus are described from southern Brazil: B. patriciae, from the headwaters of rio Pelotas (rio Uruguay drainage) and rio das Antas (laguna dos Patos drainage) and B. ecai from lower rio Taquari drainage. Bryconamericus patriciae differs from other Bryconamericus species from southern South America, by the following combination of characters: body depth (25.5-30.3% SL); head length (25.2-27.6% SL); pelvic-fin length (11.0-14.4% SL); branched anal-fin rays 14-18; teeth of outer row of premaxilla regularly implanted; teeth of inner row of premaxilla pentacuspid; teeth compressed distally; and males with bony hooks on pelvic and anal fins. Bryconamericus ecai differs from other Bryconamericus species from southern South America by the following combination of characters: body depth (33.1-36.9% SL); eye diameter (31.1-33.9% HL); snout length (26.8-32.4% HL); branched anal-fin rays 15-18; teeth of outer row of premaxilla regularly implanted; teeth of inner row of premaxilla tricuspid or pentacuspid; teeth compressed distally; and males with bony hooks on pelvic and anal fins.

Further contributions to the lichen genus Leptogium in southern South America

2013 ◽  
Vol 45 (6) ◽  
pp. 787-789 ◽  
Author(s):  
Per M. JØRGENSEN ◽  
William R. BUCK
Keyword(s):  
New Species ◽  
South America ◽  
Distinct Species ◽  
Southern South America ◽  
Two New Species ◽  
Wet Rocks ◽  
Folded Structures ◽  
Cape Horn

AbstractTwo new species in Leptogium are described and illustrated from the Cape Horn region: L. auriculatum and L. adnatum both grow on wet rocks, the former by a river, the latter on coastal rocks. In addition to the special habitat the latter is easily identified on the closely appressed thallus which centrally often have densely packed squamules in intricately folded structures. Leptogium auriculatum is characterized by the regular, rounded lobes with thickened margins carrying granular isidia. The total number of Leptogium species known in the region at present is 19, including the previously doubtful L. patagonicum Zahlbr., which is here confirmed as a distinct species.

scholarly journals Urticaceae-feeders from the family Tischeriidae: descriptions of two new species and new genus Paratischeria gen. nov.

Biologija ◽  
2017 ◽  
Vol 63 (1) ◽  
Author(s):  
Jonas R. Stonis ◽  
Arūnas Diškus ◽  
Brigita Paulavičiūtė ◽  
Alex K. Monro
Keyword(s):  
New Species ◽  
South America ◽  
New Genus ◽  
Species Group ◽  
The Andes ◽  
The Family ◽  
Two New Species

We describe a  new genus Paratischeria Diškus & Stonis, gen. nov. and present the first observations of Urticaceae-feeding Tischeriidae species in South America and two new Urticaceaefeeding species (Paratischeria fasciata sp. nov. and P. ferruginea Diškus & Stonis, sp. nov. from the Andes of Bolivia and Ecuador). Together with the  African P. urticicolella (Ghesquière) (comb. nov.) from Congo, they are attributed to the newly designated ferruginea species group.

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