scholarly journals Three new genera of acidocerine water scavenger beetles from tropical South America (Coleoptera, Hydrophilidae, Acidocerinae)

ZooKeys ◽  
2018 ◽  
Vol 768 ◽  
pp. 113-158 ◽  
Author(s):  
Jennifer C. Girón ◽  
Andrew Edward Z. Short

Recent collecting efforts in the Neotropics have led to the discovery of numerous new species and lineages of aquatic beetles. Here, three new genera are described to accommodate fifteen new species of water scavenger beetles of the subfamily Acidocerinae from northern South America:Crucisternumgen. n.forC.escalerasp. n.(Venezuela),C.ouboterisp. n.(Guyana, French Guiana, Suriname, Venezuela),C.queneyisp. n.(French Guiana),C.sinuatussp. n.(Brazil),C.toboganensissp. n.(Venezuela),C.vanessaesp. n.(Suriname), andC.xingusp. n.(Brazil);Katasophistesgen. n. forK.charynaesp. n.(Peru),K.cuzcosp. n.(Peru),K.meridasp. n.(Venezuela) andK.superficialissp. n.(Ecuador); andNanosaphesgen. n.forN.castaneussp. n.(Brazil),N.hesperussp. n.(Suriname),N.punctatussp. n.(Guyana), andN.tricolorsp. n.(Guyana, Suriname). It was also found that the monotypic Neotropical endemic genusDieroxenusSpangler, 1979,syn. n.is congeneric withChasmogenusSharp, 1882 resulting in the single new combinationChasmogenuscremnobates(Spangler, 1979),comb. n..Katasophistesmeridasp. n.is known exclusively from seepage habitats, while the remaining taxa described herein are primarily associated with the margins of densely forested streams. Diagnoses, illustrations, distribution maps, and habitat summaries are provided for all new genera and species. A key to the genera of Acidocerinae of the New World is provided.

2018 ◽  
Vol 151 (1) ◽  
pp. 130-141 ◽  
Author(s):  
Rafael G. Barbosa-Silva ◽  
Marcelo Trovó ◽  
Gustavo Martinelli ◽  
Rafaela Campostrini Forzza

Background and aims – As “islands in the sky” of northern South America, the isolated ecosystems of the Pantepui province include a distinct flora with high levels of endemism and which are ancestral areas for many angiosperm lineages. About one fifth of Pantepui angiosperm species are distributed in Poales, a highly diverse angiosperm order.Methods – Recent field trips were carried out on two Brazilian tepuis, by foot and helicopter. Herbarium collections were consulted and compared with the proposed new species. Key results – Four new species of Poales, three Navia Schult. & Schult.f. (Bromeliaceae) and one Paepalanthus Mart. (Eriocaulaceae) were found. Descriptions, illustrations, and distribution maps of the new species, as well as an identification key to Brazilian Navia species, are provided.


Zootaxa ◽  
2019 ◽  
Vol 4648 (3) ◽  
pp. 523-536
Author(s):  
FERNANDO DA SILVA CARVALHO-FILHO ◽  
MARLÚCIA BONIFÁCIO MARTINS ◽  
MATHEUS TAVARES DE SOUZA ◽  
MENNO REEMER

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. 


Zootaxa ◽  
2008 ◽  
Vol 1917 (1) ◽  
pp. 65-68 ◽  
Author(s):  
PAUL J. SPANGLER ◽  
ANDREW EDWARD Z. SHORT

The water scavenger beetle genus Tropisternus Solier, 1834, is one of the most common and recognizable taxa of aquatic beetles in the New World. As presently defined, the genus contains 60 species (Hansen 1999, Short & Hebauer 2006) and ranges from northern Canada to the southern tip of South America. The senior author (PJS) conducted a full revision of this taxonomically difficult genus for his PhD dissertation nearly fifty years ago (Spangler 1960). For the next several decades, PJS continued to update, revise, correct, and incorporate new material into this massive work. This paper makes available three new names of Tropisternus in preparation for the eventual publication of this authoritative treatment of the genus. It should be noted for those using the keys given in Spangler (1960) that the interpretation of some of the names proved incorrect following the examination of types; the key should be used with extreme caution particularly for Neotropical taxa.


Zootaxa ◽  
2011 ◽  
Vol 2868 (1) ◽  
pp. 1 ◽  
Author(s):  
BOLÍVAR R. GARCETE-BARRETT

Stenonartonia is a neotropical genus restricted to the forested regions of South America east of the Andes. The genus is revised here and numbers 14 species. Nine new species S. hasyva sp. nov., S. perdita sp. nov., S. cooperi sp. nov., S. guaraya sp. nov., S. rejectoides sp. nov., S. occipitalis sp. nov., S. tanykaju sp. nov., S. hermetica sp. nov., S. grossa sp. nov. are discribed and illustrated. New combination is proposed for S. mimica (Kohl), comb. nov. (from Paranortonia). Lectotype is designated for Nortonia polybioides von Schulthess. A key, along with full descriptions, illustrations of morphological features and distribution maps for all of the species are given.


1997 ◽  
Vol 28 (4) ◽  
pp. 391-402 ◽  
Author(s):  
M. Alma Solis

AbstractMichaelshaffera gen. n. is comprised of two species, M. maidoa (Schaus), new combination, the type species, described from French Guiana, and a new species, M. beckeri, here described from South America. The assignment of taxa to the Pyraloidea is based primarily on characters of the tympanal organs and immature stages. Michaelshaffera lacks a tympanal organ and the immatures are unknown. The rationale for the placement of this genus in the Pyraloidea and lower hierarchical ranks is discussed based on other morphological characters.


Zootaxa ◽  
2020 ◽  
Vol 4772 (2) ◽  
pp. 201-252
Author(s):  
THOMAS J. HENRY ◽  
KATRINA L. MENARD

The bryocorine genus Caulotops Bergroth (Miridae: Eccritotarsini), originally described to accommodate its only species C. puncticollis Bergroth, is shown not to be congeneric with all other species now included in the genus from North, Central, and northern South America. Consequently, four new genera are established for the following 20 species, including five new combinations and 14 species described as new: Agaveocoris n. gen. for Caulotops agavis Reuter (as the type species), n. comb.; C. barberi Knight, n. comb.; and C. distanti Reuter, n. comb. and the new species A. bimaculatus, n. sp.; A. barrerai, n. sp.; A. dimidiatus, n. sp.; A. marginalis, n. sp.; A. roseus, n. sp.; A. rostratus, n. sp.; A. schaffneri, n. sp.; and A. scutellatus, n. sp; Laterospinocoris, n. gen. for Caulotops cyaneipennis Reuter, new comb. (as the type species) and the new species L. mexicanus, n. sp.; Nigrotomocoris n. gen. for Caulotops nigrus Carvalho (as the type species), n. comb.; C. tibiopallidus Carvalho, n. comb.; and the new species N. keltoni, n. sp. and N. longirostris, n. sp.; and Schaffnerocoris, n. gen., for S. fuscotibialis, n. sp. (as the type species), S. pallipes, n. sp., and S. similis, n. sp. Lectotypes are designated for Caulotops agavis Reuter, Caulotops cyaneipennis Reuter, and Caulotops puncticollis Bergroth, and a neotype is designated for Eccritotarsus platensis Berg. Each genus and species is diagnosed and described; habitus images, illustration of male genitalia and selected female genitalia, and keys to genera and species are provided; and host use and the unique genitalic systems of these taxa are discussed. A phylogenetic analysis, based on 22 taxa and 39 characters, resulted in three trees supporting the monophyly of the four new genera proposed in this study. 


Zootaxa ◽  
2020 ◽  
Vol 4810 (3) ◽  
pp. 452-467
Author(s):  
THIAGO T. S. POLIZEI ◽  
ANDRÉ S. FERNANDES

Elmidae is one of the most diverse families of aquatic beetles, with more than 1500 species in 151 genera. The Neotropical genus Portelmis formerly comprised five species known from Central and northern South America, divided into two species groups. Three new Brazilian species from the nevermanni group are described and illustrated here: Portelmis vanini sp. nov., Portelmis krolowi sp. nov. and Portelmis fusariae sp. nov. New species records for the North, Central-West and Southeast of Brazil are presented. We also provide first SEM images and an updated key for Portelmis species. 


Zootaxa ◽  
2020 ◽  
Vol 4743 (1) ◽  
pp. 92-102
Author(s):  
LEONEL MARTÍNEZ ◽  
EDUARDO FLÓREZ D ◽  
ANTONIO DOMINGOS BRESCOVIT

Two new species of the armored spider genus Tetrablemma O. P.-Cambridge, 1873 from Colombia and Venezuela are herein described and illustrated: Tetrablemma tatacoa sp. nov. from Huila department, Colombia and T. mochima sp. nov. from Sucre state, Venezuela. These species represent the second record of the genus in the New World. Specimens of these new species were collected in pristine ecosystems, which suggests a natural Gondwanan distribution of the genus. Additionally, a distribution map of the Tetrablemma species in America is herein included. 


Zootaxa ◽  
2021 ◽  
Vol 4990 (2) ◽  
Author(s):  
MARIANA A. CHERMAN ◽  
DANIEL S. BASÍLIO ◽  
KLEBER M. MISE ◽  
JOHANNES FRISCH ◽  
ANDREW B.T. SMITH ◽  
...  

The biodiversity of northern South American and Central American Liogenys Guérin-Méneville, 1831 (Coleoptera: Scarabaeidae: Melolonthinae: Diplotaxini) is reviewed. Four new species are described: L. clipeosetosa Cherman, new species; L. genieri Smith & Cherman, new species; L. granadina Cherman, new species; and L. schneiderae Cherman, new species. The male of L. quadridens (Fabricius, 1798) and the female of L. quadridentata Blanchard, 1851 are described for the first time. Liogenys gebieni Moser, 1921 is a new junior subjective synonym of L. macropelma Bates, 1887. The northernmost record of Liogenys is emended to Trinidad and Tobago for L. granadina Cherman, new species and L. schneiderae new species. Diplotaxis puberea cuprascens (Bates, 1887) new combination, Diplotaxis puberea puberea (Bates, 1887) new combination, and Diplotaxis pubisternis (Bates, 1887) new combination are all transferred from Liogenys to Diplotaxis Kirby, 1837. Lectotypes are designated for Liogenys gebieni Moser, 1921; Melolontha quadridens Fabricius, 1798; and Liogenys quadridentatus Blanchard, 1851. An identification key to northern South American Liogenys is presented.


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