Latest Articles from Arthropod Systematics & Phylogeny Latest 3 Articles from Arthropod Systematics & Phylogeny https://arthropod-systematics.arphahub.com/ Fri, 29 Mar 2024 17:45:41 +0200 Pensoft FeedCreator https://arthropod-systematics.arphahub.com/i/logo.jpg Latest Articles from Arthropod Systematics & Phylogeny https://arthropod-systematics.arphahub.com/ Taxonomic revision and phylogeny of the sharpshooter genus Dasmeusa Melichar, 1926, with a scanning electron microscopy study of D. pauperata (Fabricius, 1803) (Hemiptera: Cicadellidae: Cicadellini) https://arthropod-systematics.arphahub.com/article/102848/ Arthropod Systematics & Phylogeny 81: 655-687

DOI: 10.3897/asp.81.e102848

Authors: Nathalia H. Pecly, Daniela M. Takiya, Rodney R. Cavichioli, Gabriel Mejdalani

Abstract: The genus Dasmeusa is distributed in Northern and Northeastern Brazil and the Guianas. Until the present study, six species were recognized within Dasmeusa. The species of this genus are very similar in terms of color and external morphology, being distinguished mainly by the male terminalia. Here, we review and redescribe Dasmeusa and its species, describe four new species, and present the first phylogenetic analysis of the genus, including 40 morphological characters and 15 terminal taxa. Dasmeusa flavescens Metcalf and Erythrogonia bicolor Metcalf are considered junior synonyms of the type-species, Dasmeusa pauperata (Fabricius). Scanning electron microscopy was employed for a detailed study of the integument of the type-species, including sensilla, surface sculpturing, brochosomes, organ of Evans, and other structures. The phylogenetic analysis with equal weights resulted in nine most parsimonious trees. The implied weighting method resulted in two trees, both with the same ingroup topology as observed in one of the nine equal-weights trees. This preferred topology is as follows: ((D. basseti (D. mendica (D. rafaeli sp. nov., D. falcifera sp. nov.))) (D. isabellina (D. oriximina sp. nov. (D. pauperata (D. imperialis, D. dinizi sp. nov.))))). Dasmeusa was recovered as monophyletic in all trees, being supported by five apomorphic characters.

HTML

XML

PDF

]]>
Research Article Tue, 1 Aug 2023 14:36:35 +0300
Phylogenetic analysis and revision of the leafhopper genus Acuera DeLong & Freytag (Hemiptera: Cicadellidae: Gyponini) based on morphological data https://arthropod-systematics.arphahub.com/article/81961/ Arthropod Systematics & Phylogeny 81: 79-164

DOI: 10.3897/asp.81.e81961

Authors: Alexandre Cruz Domahovski, Rodney Ramiro Cavichioli

Abstract: Based on a phylogenetic analysis using implied weighting for 59 taxa and 155 morphological characters, we provided a taxonomic revision for Acuera. The genus was recovered as polyphyletic; herein we described three new genera and 16 new species, and proposed 23 new combinations, a new status and four new synonyms for Gyponini. Coarctana gen. nov. is described to include 15 species: C. rana (DeLong & Freytag) comb. nov. (type species) transferred from Acuera; five species transferred from Curtara, C. apena (DeLong & Freytag) comb. nov., C. pedica (DeLong) comb. nov., C. punctata (Spångberg) comb. nov., C. secara (DeLong & Triplehorn) comb. nov., and C. serpenta (DeLong) comb. nov.; and nine new species, C. asymmetrica sp. nov., C. glabra sp. nov., C. nigromedia sp. nov., C. occultata sp. nov., C. oricula sp. nov., C. parvula sp. nov., C. striata sp. nov., C. taurina sp. nov., and C. vilavelha sp. nov. Effossana gen. nov. includes eight species: two species transferred from Acuera, E. gloma (DeLong & Freytag) comb. nov. (type species) and E. fructa (DeLong & Freytag) comb. nov.; two species transferred from Curtara, E. gatuna (DeLong & Wolda) comb. nov. and E. scapa (DeLong) comb. nov.; and four new species, E. assimulata sp. nov., E. circumnota sp. nov., E. intrinseca sp. nov., and E. tenuemarginata sp. nov. A new monotypic genus, Propincurtara gen. nov., is described to include P. longilinea sp. nov. The subgenus Parcana is raised to genus rank, comprising nine species: P. atitlana (Fowler) comb. nov., P. concilia (DeLong & Freytag) comb. nov., P. extara (DeLong & Freytag) comb. nov., P. mimica (DeLong & Freytag) comb. nov., P. spreta (Fowler) comb. nov., and P. ultima (DeLong & Freytag) comb. nov. (type species); also three species transferred from Curtara, P. albororata (Fowler) comb. nov., P. animosa (DeLong & Freytag) comb. nov., and P. ventusa (DeLong & Freytag) comb. nov. Curtara lineatana DeLong & Freytag is a junior synonym of P. concilia (DeLong & Freytag) comb. nov., Acuera inlustra DeLong & Freytag is a junior synonym of Hamana manifesta DeLong, and A. culmena DeLong & Freytag and A. prodiga DeLong & Freytag are synonyms of A. menaca DeLong & Freytag. Four species of Acuera are transferred to Curtara: C. facera (DeLong & Freytag) comb. nov., C. labella (Osborn) comb. nov., C. nama (DeLong & Freytag) comb. nov., and C. patula (DeLong & Freytag) comb. nov. Two new species, A. extenuata sp. nov. and A. umbra sp. nov. are described and placed in the subgenus Acuera. We provide descriptions and illustrations of the new taxa, redescription of the type species of the genera Acuera, Coarctana gen. nov., Effossana gen. nov., and Parcana stat. nov., 40 new country and Brazilian states records, and key to males of each genus.

HTML

XML

PDF

]]>
Research Article Fri, 20 Jan 2023 17:35:59 +0200
Total evidence analysis elucidates the tangled systematic scenario within Fidicinini (Hemiptera: Auchenorrhyncha, Cicadidae) https://arthropod-systematics.arphahub.com/article/85755/ Arthropod Systematics & Phylogeny 81: 35-77

DOI: 10.3897/asp.81.e85755

Authors: Tatiana Petersen Ruschel, Filipe Michels Bianchi, Luiz Alexandre Campos, Gervásio Silva Carvalho

Abstract: The Linnean, Wallacean, and Darwinian shortfalls are knowledge gaps about species taxonomy, distribution, and evolution, respectively. Fidicinini is a tribe of cicadas that suffers from these gaps. We assessed specimens of the tribe sharing similar male genital shape (uncus), but fitting the somatic morphology of either Dorisiana Metcalf, 1952 and Guyalna Boulard & Martinelli, 1996. We build a phylogenetic hypothesis by total evidence analysis and perform a character optimization of the uncus and timbal cover shapes, the last used as diagnostic for both genera. Dorisiana and Guyalna were recovered non-monophyletic. A new genus, Acanthoventris gen. nov., and ten new species are proposed: A. charrua Ruschel sp. nov., A. claudiae Ruschel sp. nov., A. faustopsaltrius Ruschel sp. nov., A. iara Ruschel sp. nov., A. igneus Ruschel sp. nov., A. olivarius Ruschel sp. nov., A. phoenix Ruschel sp. nov., A. rubemi Ruschel sp. nov., A. tumidus Ruschel sp. nov., and A. viridinotatus Ruschel sp. nov.; and three new combinations A. densusus (Boulard & Martinelli, 2011) comb. nov., A. drewseni (Stål, 1854) comb. nov., and A. jauffreti (Boulard & Martinelli, 2001) comb. nov. We provide illustrated identification keys, occurrence maps, and discuss the distribution of the species in the new genus.

HTML

XML

PDF

]]>
Research Article Fri, 20 Jan 2023 11:08:36 +0200