Three new species of Icaia Linnavuori (Hemiptera: Cicadellidae: Deltocephalinae) from Peru and distinction of the genus from Athysanella Baker

Zootaxa ◽  
2007 ◽  
Vol 1390 (1) ◽  
pp. 27-39
Author(s):  
JAMES N. ZAHNISER ◽  
ANDREW HICKS

Four undescribed species of Icaia Linnavuori were identified from collections in montane grasslands of Peru. Three of these are illustrated and described as new species, and the remaining species, known only from one female, is illustrated. The new species are I. straminea sp. nov., I. laoroya sp. nov., and I. cygnus sp. nov. A comparative study of 18 morphological characters for 14 species of Icaia and Athysanella Baker was undertaken to reassess their current circumscriptions. Parsimony analysis of these characters recovered each genus as a monophyletic group and the strict consensus tree is presented to provide a preliminary view of the generic and subgeneric phylogeny of this New World group of Chiasmini. Several derived characters of the male genitalia were found that unite most of the species currently placed in Athysanella. However, three species currently placed in A. (Diphipyga) retain the plesiomorphic states for these characters. A. (Diphipyga) is reinterpreted to contain only these three species, A. (D.) mexicana Johnson, A. (D.) nimbata Ball & Beamer, and A. (D.) secunda Blocker & Wesley. Athysanella rubicunda Ball & Beamer and A. triodana Ball & Beamer are reinstated in Athysanella (Amphipyga). No uniquely identifying and universally shared characters were found that unite all species of Icaia, but a combination of similarities in external morphology and male genitalia to described species of Icaia, a lack of characters that define other genera of Chiasmini, and their South American distribution allow placement of the new species into Icaia.

Zootaxa ◽  
2007 ◽  
Vol 1390 (1) ◽  
pp. 27 ◽  
Author(s):  
JAMES N. ZAHNISER ◽  
ANDREW HICKS

Four undescribed species of Icaia Linnavuori were identified from collections in montane grasslands of Peru. Three of these are illustrated and described as new species, and the remaining species, known only from one female, is illustrated. The new species are I. straminea sp. nov., I. laoroya sp. nov., and I. cygnus sp. nov. A comparative study of 18 morphological characters for 14 species of Icaia and Athysanella Baker was undertaken to reassess their current circumscriptions. Parsimony analysis of these characters recovered each genus as a monophyletic group and the strict consensus tree is presented to provide a preliminary view of the generic and subgeneric phylogeny of this New World group of Chiasmini. Several derived characters of the male genitalia were found that unite most of the species currently placed in Athysanella. However, three species currently placed in A. (Diphipyga) retain the plesiomorphic states for these characters. A. (Diphipyga) is reinterpreted to contain only these three species, A. (D.) mexicana Johnson, A. (D.) nimbata Ball & Beamer, and A. (D.) secunda Blocker & Wesley. Athysanella rubicunda Ball & Beamer and A. triodana Ball & Beamer are reinstated in Athysanella (Amphipyga). No uniquely identifying and universally shared characters were found that unite all species of Icaia, but a combination of similarities in external morphology and male genitalia to described species of Icaia, a lack of characters that define other genera of Chiasmini, and their South American distribution allow placement of the new species into Icaia.


2017 ◽  
Vol 15 (4) ◽  
Author(s):  
Maria Laura S. Delapieve ◽  
Pablo Lehmann A ◽  
Roberto E. Reis

ABSTRACT The discovery of three new taxa of Hypoptotopomatini with ambiguous generic assignment prompted a reanalysis of the phylogenetic relationships of the tribe. The analysis focused on a data matrix of 56 terminals and 107 morphological characters comprising the three new taxa, most species of Hypoptopoma and Otocinclus, and all other species of the tribe. The 162 maximally parsimonious trees of 382 steps, consistency index of 0.41, and retention index of 0.83 were then summarized in a strict consensus tree. The results confirm the monophyly of the Hypoptopomatini, recover four genera as monophyletic (Acestridium, Hypoptopoma, Niobichthys, and Otocinclus), revealed Hypoptopoma and Oxyropsis to be non-monophyletic; and revealed two new genera within Hypoptopomatini. Additionally, Otocinclus was found to be sister to a group with all remaining genera of the tribe; Acestridium and Niobichthys were found to be sister to each other and that clade sister to a group formed by ((Leptotocinclus + Hypoptopoma [part]) + (Nannoxyropsis (Oxyropsis + Hypoptopoma [part]))). Based on this framework, changes to the classification and the taxonomy of the Hypoptopomatini are suggested and the new taxa are described.


Zootaxa ◽  
2021 ◽  
Vol 4920 (2) ◽  
pp. 254-266
Author(s):  
M. SENRAJ ◽  
S. MARIA PACKIAM ◽  
S. PRABAKARAN ◽  
CRISTIAN C. LUCANAS ◽  
DEEPA JAISWAL

The known species of Allacta Saussure & Zehntner, 1895 in India are reviewed. Three new species, A. jcenpro sp. nov., A. vellimalai sp. nov., and A. kollimalai sp. nov., are described. All are placed under hamifera species group. The new species can be differentiated from other members of hamifera species group by the pronotal and facial markings, the structure of the male genitalia and other morphological characters. Additional reports to A. kalakadensis Prabakaran & Senraj 2019 and A. figurata (Walker, 1871) are provided. A key to the known species of Indian Allacta is provided. 


ZooKeys ◽  
2017 ◽  
Vol 684 ◽  
pp. 119-154 ◽  
Author(s):  
Peter Buchner ◽  
Martin Corley ◽  
Jari Junnilainen

The species Depressaria albarracinella Corley, sp. n., Agonopterix carduncelli Corley, sp. n. and Agonopterix pseudoferulae Buchner & Junnilainen, sp. n. and the subspecies Depressaria saharae Gastón & Vives ssp. tabelli Buchner, ssp. n. are described. Depressaria albarracinella was first found in Spain in 1969 and recognised as apparently new but the specimens in NHMUK have remained undescribed. Additional Spanish material has been located in ZMUC and other collections and three specimens have been found from Greece. Agonopterix carduncelli. A single male of an unidentified Agonopterix of the pallorella group was found in Algarve, Portugal in 2010. A search for larvae in March 2011 was successful and one male and one female were reared from Carthamus caeruleus. Additional specimens of the new species have been located in collections from Spain, Greece and Morocco. Agonopterix pseudoferulae. A specimen from Greece with the name Agonopterix ferulae (Zeller, 1847) found in the Klimesch collection in ZSM had forewing markings which suggested that it might be a different species. Further specimens from Italy and Greece have been examined, among them two reared from Elaeoselinum asclepium (Apiaceae). Both genitalia and barcode show that this is an undescribed species. Depressaria saharae Gastón & Vives, 2017 was described very recently (Gastón and Vives 2017) from northern Spain with a brief description, and figures of two males and male genitalia. Here the new species is redescribed, and additional data on distribution and relationships of the new species added. The opportunity is also taken to show that Canary Islands specimens with the same male genitalia should be treated as a new subspecies D. saharae ssp. tabelli Buchner, ssp. n.


Zootaxa ◽  
2021 ◽  
Vol 5027 (1) ◽  
pp. 61-86
Author(s):  
EVERTON E. NAZARÉ-SILVA ◽  
FERNANDO A.B. SILVA

The South American species of Pseudocanthon Bates, 1887 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini) are reviewed. In this work, 10 valid species and two subspecies are recognized for the genus. Among these species, five are recorded in South America, including three new species: P. perplexus (LeConte, 1847), P. xanthurus (Blanchard, 1847), P. vazdemelloi new species, P. pantanensis new species, and P. chaquensis new species. A lectotype is designated for P. xanthurus (Blanchard, 1847). In this revision, each species is analyzed as follows: a detailed literature review, an identification key for the South American species, a diagnosis, descriptions, illustrations of key morphological characters, list of examined material, and geographic distribution.  


Zootaxa ◽  
2009 ◽  
Vol 2142 (1) ◽  
pp. 29-44 ◽  
Author(s):  
EDUARDO DOMÍNGUEZ ◽  
CARLOS MOLINERI ◽  
RODOLFO MARIANO

The South American species of the genera Askola and Hagenulopsis are revised. Three new species of Askola from Brazil are described based on male imagos. Askola emmerichi sp. nov. and A. paprockii sp. nov. present spotted wings, but differ in general coloration and details of genitalia; Askola cipoensis sp. nov. is easily distinguished because the male eyes being widely separated on meson of head. Three new species of Hagenulopsis are also described: H. lipeo (from Argentina and Bolivia) and H. zunigae (from Colombia), both described from imagos and nymphs, can be recognized by details of coloration and male genitalia. H. esmeralda sp. nov. from Ecuador, described from imagos, shows a distinct male genitalia and translucent male abdomen. A key to species for the the male and female imagos of Askola and Hagenulopsis species is provided.


2013 ◽  
Vol 145 (5) ◽  
pp. 501-508 ◽  
Author(s):  
Anthony I. Cognato

AbstractElectroborus brighti, new genus, new species (Coleoptera: Curculionidae: Scolytinae) is described based on two specimens from Dominican amber, which represents the first Hylesinini found in Dominican amber. A phylogenetic analysis of 24 Hylesinini species and a Strombophorus Hagedorn species based on morphological characters suggests E. brighti is not related to the Neotropical genus Phloeoborus Erichson, but shares a close affinity to African Hylesinini genera. The discovery of this new genus adds to the evidence that tropical South America and Africa shared similar faunas throughout evolutionary history. Although many Old World taxa have become extinct in the New World, the existence of E. brighti among Recent faunas is a possibility, given that the South American and African scolytine faunas are relatively poorly studied.


Phytotaxa ◽  
2018 ◽  
Vol 347 (3) ◽  
pp. 213
Author(s):  
DANIEL B. MONTESINOS-TUBÉE ◽  
GUILLERMO PINO ◽  
RICARDO ZÁRATE-GÓMEZ

Three new species of Senecio (Compositae: Senecioneae) from Central Peru are described and illustrated. Morphological characters are used in order to distinguish them from the closest species. Senecio crassiandinus Montesinos & Pino has succulent leaves with cuticle composed of translucid white glands, bright yellow disc florets with blotches of pale reddish-brown in the corolla throat and linear-oblong achenes covered with trichomes, which distinguish it from the other South American species of the genus. Senecio inghamii Montesinos has oblanceolate-ovate to rhombic-quadrate leaves, short-sized, with serrate-quadrate dentation, upper surface lustrous and glossy, lower surface densely covered with whitish lanuginose pubescence, capitules bear trilobulated ray florets, achenes copiously covered by fimbriate hairs which differentiates it from its closest relative, S. pensilis Greenm. Senecio roseoandinus Montesinos & R. Zárate is a unique pubescent species characterized for being a perennial rhizomatous herb, with lanuginose and arachnoid trichomes, leaves elliptic-lanceolate, thick, densely arachnoid to glabrous (lustrous, glossy, dark green), margin entire to crenate, synflorescence in racemes, capitules discoid, corolla pale yellow but turning fuchsia-pink at maturity, achenes oblong, striate, and glabrous. All three new species are distributed in the Alto Marañon river mountain slopes, at altitudes ranging from 2000 up to 4200 m a.s.l. The species are, so far, only known from their type localities in the Huánuco region.


2011 ◽  
Vol 20 (1) ◽  
pp. 161-173
Author(s):  
A.P. Kassatkina

Resuming published and own data, a revision of classification of Chaetognatha is presented. The family Sagittidae Claus & Grobben, 1905 is given a rank of subclass, Sagittiones, characterised, in particular, by the presence of two pairs of sac-like gelatinous structures or two pairs of fins. Besides the order Aphragmophora Tokioka, 1965, it contains the new order Biphragmosagittiformes ord. nov., which is a unique group of Chaetognatha with an unusual combination of morphological characters: the transverse muscles present in both the trunk and the tail sections of the body; the seminal vesicles simple, without internal complex compartments; the presence of two pairs of lateral fins. The only family assigned to the new order, Biphragmosagittidae fam. nov., contains two genera. Diagnoses of the two new genera, Biphragmosagitta gen. nov. (type species B. tarasovi sp. nov. and B. angusticephala sp. nov.) and Biphragmofastigata gen. nov. (type species B. fastigata sp. nov.), detailed descriptions and pictures of the three new species are presented.


Zootaxa ◽  
2012 ◽  
Vol 3504 (1) ◽  
pp. 1 ◽  
Author(s):  
ALESSANDRE PEREIRA-COLAVITE ◽  
CLAUDIO J. B. DE CARVALHO

Neomuscina Townsend includes 41 species distributed throughout the Nearctic and Neotropical Regions. Although the genus has a large number of species, it has been ignored and its taxonomy is confusing and has many flaws. In this work we analyzed the following species recorded for Brazil: Neomuscina atincta Snyder, N. atincticosta Snyder, N. capalta Snyder, N. currani Snyder, N. douradensis Lopes & Khouri, N. goianensis Lopes & Khouri, N. inflexa (Stein), N. instabilis Snyder, N. mediana Snyder, N. mimosa Lopes & Khouri, N. neosimilis Snyder, N. nigricosta Snyder, N. paramediana Lopes & Khouri, N. pictipennis pictipennis (Bigot), N. ponti Lopes & Khouri, N. sanespra Snyder, N. schadei Snyder, N. similata Snyder, N. stabilis (Stein), N. transporta Snyder, N. vitoriae Lopes & Khouri and N. zosteris (Shannon & Del Ponte). Neomuscina nigricosta and N. transporta are new distribution records for Brazil. Three new species are described: Neomuscina anajeensis sp. nov. from Anagé (Bahia), Neomuscina maculata sp. nov. from Botelhos (Minas Gerais) and Neomuscina snyderi sp. nov. from Mata de São João (Bahia). An identification key based on the morphological characters of both male and female is provided. Species distributions are discussed and updated, and the number of species now recorded for Brazil is 29.


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