Abundance and Species Richness of Leafhoppers and Planthoppers (Hemiptera: Cicadellidae and Delphacidae) in Brazilian Maize Crops

Fil: De Oliveira, Charles Martins. Embrapa Cerrados. Planaltina. Brasília/DF; BrazilFil: De Oliveira, Elizabeth. Embrapa Milho e Sorgo. Sete Lagoas/MG; BrazilFil: Prazeres De Souza, Isabel Regina. Embrapa Milho e Sorgo. Sete Lagoas/MG; BrazilFil: Alves, Elcio. DuPont do Brazil S.A. DivisÆo Pioneer Sementes. Itumbiara/GO; BrazilFil: Dolezal, William. Pioneer Hi-Bred International. Itumbiara/GO; BrazilFil: Paradell, Susana Liria. División Entomología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Marino de Remes Lenicov, Ana María. División Entomología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Frizzas, Marina Regina. Universidade de Brasília. Departamento de Zoologia. Instituto de Ciências Biológicas. Brasília/DF; Brazi

Variaciones estacionales e históricas de las especies ícticas de la laguna Chascomús

In the last five decades the ictiofauna of Chascomús Shallow lake has been studied in quite detail. Between 1999 and 2000 monthly samples of fish with fyke nets were taken. Thus obtaining the cuali-quantitative composition of each sample taken. These were used to assess the variations between sites and seasons of the year. Among the 17 species caught Porteño, pejerrey and sabalito were present in all the samples taken, wichwere dominant and wich represented 51%, 24% and 14% of the total number respectively, and 28% 10% and 37% in weight. Their composition was similar in all stations sampling at every date. Notwithstanding this differences between abundance (CPUEn) and the extracted biomass (CPUEw) were observed. The capture by unit of total effort decreased from winter to autumn. The average (CPUEw) for Chascomús was above the values corresponding to 47 samples taken in different water bodies from Buenos Aires pampas. Comparing the results with the obtained historical data throughout 40 years it was observed that the percentage of the planctophagous species, pejerrey and mandufia marked a declining tendency. On the other handthe biomass of the porteño and sabalito showed a market increase. Significant correlations between these changes and the antropogénic impact were observed.Instituto de Limnología "Dr. Raúl A. Ringuelet

Variaciones estacionales e históricas de las especies ícticas de la laguna Chascomús

In the last five decades the ictiofauna of Chascomús Shallow lake has been studied in quite detail. Between 1999 and 2000 monthly samples of fish with fyke nets were taken. Thus obtaining the cuali-quantitative composition of each sample taken. These were used to assess the variations between sites and seasons of the year. Among the 17 species caught Porteño, pejerrey and sabalito were present in all the samples taken, wichwere dominant and wich represented 51%, 24% and 14% of the total number respectively, and 28% 10% and 37% in weight. Their composition was similar in all stations sampling at every date. Notwithstanding this differences between abundance (CPUEn) and the extracted biomass (CPUEw) were observed. The capture by unit of total effort decreased from winter to autumn. The average (CPUEw) for Chascomús was above the values corresponding to 47 samples taken in different water bodies from Buenos Aires pampas. Comparing the results with the obtained historical data throughout 40 years it was observed that the percentage of the planctophagous species, pejerrey and mandufia marked a declining tendency. On the other handthe biomass of the porteño and sabalito showed a market increase. Significant correlations between these changes and the antropogénic impact were observed.Instituto de Limnología "Dr. Raúl A. Ringuelet

Variaciones estacionales e históricas de las especies ícticas de la laguna Chascomús

In the last five decades the ictiofauna of Chascomús Shallow lake has been studied in quite detail. Between 1999 and 2000 monthly samples of fish with fyke nets were taken. Thus obtaining the cuali-quantitative composition of each sample taken. These were used to assess the variations between sites and seasons of the year. Among the 17 species caught Porteño, pejerrey and sabalito were present in all the samples taken, wichwere dominant and wich represented 51%, 24% and 14% of the total number respectively, and 28% 10% and 37% in weight. Their composition was similar in all stations sampling at every date. Notwithstanding this differences between abundance (CPUEn) and the extracted biomass (CPUEw) were observed. The capture by unit of total effort decreased from winter to autumn. The average (CPUEw) for Chascomús was above the values corresponding to 47 samples taken in different water bodies from Buenos Aires pampas. Comparing the results with the obtained historical data throughout 40 years it was observed that the percentage of the planctophagous species, pejerrey and mandufia marked a declining tendency. On the other handthe biomass of the porteño and sabalito showed a market increase. Significant correlations between these changes and the antropogénic impact were observed.Instituto de Limnología "Dr. Raúl A. Ringuelet

Difusión del Corn Stunt Spiroplasma del maíz (Spiroplasma kunkelii) y del vector (Dalbulus maidis) en la República Argentina

Among the most important diseases that affect the corn crops (Zea mays L.) is “Corn Stunt Spiroplasm” (CSS). It is caused by Spiroplasm kunkelii and transmitted by a cicadelid Dalbulus maidis (De Long & Wolcott, 1923), the only vector known up to the present in Argentina. Corn crop were monitored in 10 provinces of Argentina during 1991/1992, 1994/1995, 1996/2000. This provided information about the growth of this disease since its detection in the year 1990/1991 up to the present in Argentina as well as the distribution of D. maidis, its vector. The detection of the pathogen was performed on plants with symptoms that are characteristic of CSS using the technique of NC-ELISA. The vector was captured by sweeping plants of corn with symptoms. A increase in the areas affected by CSS was shown in the provinces of Jujuy, Salta, Tucumán, Catamarca, Chaco, Corrientes and Santiago del Estero as well as its recent detection in the provinces of Córdoba, San Luis and La Pampa. Based on the 83 places monitored, D. maidis was present in 80 % of the samples and the pathogen was detected in 96%. In the provinces Corrientes, Córdoba, San Luis and La Pampa, D. maidis was not registered.Entre las enfermedades más importantes que afectan al cultivo de maíz (Zea mays L.), se encuentra el achaparramiento o Corn Stunt Spiroplasma (CSS), causado por Spiroplasma kunkelii, trasmitido por el cicadélido Dalbulus maidis (De Long & Wolcott, 1923), único vector conocido hasta el presente en Argentina. Sobre la base de monitoreos realizados en lotes cultivados de maíz en 10 provincias de Argentina durante las campañas 1991/1992; 1994/1995; 1996/2000 se aporta información de esta enfermedad y del agente vector desde su detección en el año 1990/1991. La identificación del patógeno se realizó sobre plantas con síntomas característicos del CSS mediante la técnica de NCELISA. La presencia del vector se registró mediante capturas con red entomológica de arrastre sobre plantas de maíz con síntomas. Se demostró un incremento de la superficie afectada por el Corn Stunt Spiroplasma en las provincias de Jujuy, Salta, Tucumán, Catamarca, Chaco, Corrientes, Santiago del Estero y la reciente aparición en las provincias de Córdoba, San Luis y La Pampa. De las 83 localidades monitoreadas, D. maidis estuvo presente en 80 % de las localidades y en 96% se detectó el patógeno. En las provincias de Corrientes, Córdoba, San Luis y La Pampa no se registró a D. maidis

OA011-03. Clusterin, a natural ligand of DC-SIGN present in human semen inhibits HIV capture and transmission by dendritic cells

International audiencen.

Inventory of some families of Hemiptera, Coleoptera (Curculionidae) and Hymenoptera associated with horticultural production of the Alto Valle de Río Negro and Neuquén provinces (Argentina)

The knowledge of the entomological fauna in productive systems is important for the agroecological management since beneficial insects are a key resource for pest management in horticultural systems. Scientific information on the biodiversity present in a given area is essential as well as the ecological function and/or feeding habits of the insects. In Alto Valle de Río Negro and Neuquén, horticultural production systems can be described as highly dependent on chemical inputs for pest management and fertilization. The aim of this study is to carry out an inventory of the biodiversity of some families of Hemiptera, Coleoptera (Curculionidae) and Hymenoptera present in peri-urban and rural farms located in Neuquén and Río Negro, respectively. Insects were collected through pitfall and sweeping net on tomato and pepper crops and the surrounding non-cultivated areas. Idiosystatus Berg (Auchenorrhyncha) was cited for the first time from Argentina. Species cited for the first time from Neuquén: Hemiptera: Auchenorrhyncha: Acanalonia chloris (Berg), Syncharina punctatissima (Signoret), Amplicephalus dubius Linnavuori, Exitianus obscurinervis (Stål), Agalliana ensigera Oman and Bergallia signata (Stål); Hemiptera: Heteroptera: Harmostes (Harmostes) prolixus Stål and Atrachelus (Atrachelus) cinereus (Fabricius); Coleoptera: Curculionidae: Hypurus bertrandi (Perris), Naupactus leucoloma Boheman, Otiorhynchus rugosostriatus (Goeze) and Sitona discoideus Gyllenhal and Hymenoptera: Xylocopa (Neoxylocopa) augusti Lepeletier and Pseudagapostemon (Neagapostemon) singularis Jörgensen. Species cited for the first time from Río Negro: Hemiptera: Auchenorrhyncha: Amplicephalus dubius Linnavuori, Amplicephalus marginellanus Linnavuori, Circulifer tenellus (Baker) and Xerophloea viridis (Fabricius); Hemiptera: Heteroptera: Tupiocoris cucurbitaceus (Spinola), Atrachelus (Atrachelus) cinereus (Fabricius), Dichelops furcatus (Fabricius) and Harmostes (Harmostes) prolixus Stål; Coleptera: Curculionidae: Naupactus xanthographus (Germar) and Hymenoptera: Diadasia pereyrae (Holmberg) and Dialictus autranellus (Vachal).El conocimiento de la fauna entomológica presente en los sistemas productivos es importante para el manejo agroecológico ya que los insectos beneficiosos son un recurso clave para el manejo de plagas en los sistemas hortícolas. Es esencial contar con información científica sobre la biodiversidad presente en un área determinada y la función ecológica y/o los hábitos alimenticios de los insectos. En el Alto Valle de Río Negro y Neuquén, los sistemas de producción hortícola pueden describirse como altamente dependientes de los insumos químicos para el manejo de plagas y fertilización. El objetivo de este estudio es realizar un inventario de la biodiversidad de algunas familias de Hemiptera, Coleoptera (Curculionidae) e Hymenoptera presentes en las chacras periurbanas y rurales ubicadas en Neuquén y Río Negro, respectivamente. Los insectos fueron recolectados a través de trampas de caída y red entomológica en cultivos de tomate y pimiento, y áreas circundantes no cultivadas. Idiosystatus Berg (Auchenorrhyncha) fue citado por primera vez en Argentina. Especies citadas por primera vez en Neuquén: Hemiptera: Auchenorrhyncha: Acanalonia chloris (Berg), Syncharina punctatissima (Signoret), Amplicephalus dubius Linnavuori, Exitianus obscurinervis (Stål), Agalliana ensigera Oman y Bergallia signata (Stål); Hemiptera: Heteroptera: Harmostes (Harmostes) prolixus Stål y Atrachelus (Atrachelus) cinereus (Fabricius); Coleoptera: (Curculionidae): Hypurus bertrandi (Perris), Naupactus leucoloma Boheman, Otiorhynchus rugosostriatus (Goeze) y Sitona discoideus Gyllenhal e Hymenoptera: Xylocopa (Neoxylocopa) augusti Lepeletier and Pseudagapostemon (Neagapostemon) singularis Jörgensen. Especies citadas por primera vez en Río Negro: Hemiptera: Auchenorrhyncha: Amplicephalus dubius Linnavuori, Amplicephalus marginellanus Linnavuori, Circulifer tenellus (Baker) y Xerophloea viridis (Fabricius); Hemiptera: Heteroptera: Tupiocoris cucurbitaceus (Spinola), Atrachelus (Atrachelus) cinereus (Fabricius), Dichelops furcatus (Fabricius) y Harmostes (Harmostes) prolixus Stål; Coleoptera: Curculionidae: Naupactus xanthographus (Germar) e Hymenoptera: Diadasia pereyrae (Holmberg) y Dialictus autranellus (Vachal).Área Investigación y Desarrollo Tecn. Agricultura Familiar - Región PatagoniaFil: Alvarez, Leopoldo Jesus. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Bernardis, Adela M. Universidad Nacional del Comahue. Facultad de Ciencias del Ambiente y la Salud; ArgentinaFil: Defea, Bárbara Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Entomología; ArgentinaFil: Dellapé, Pablo Matías. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil. Del Río, Maria Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Entomología; ArgentinaFil: Gittins Lopez, Cecilia Gabriela. Instituto Nacional Tecnología Agropecuaria (INTA). Área Investigación y Desarrollo Tecn. Agricultura Familiar - Región Patagonia; ArgentinaFil: Lanteri, Analía A. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: López Armengol, María Fernanda. Universidad Nacional del Comahue. Facultad de Ciencias del Ambiente y la Salud; Argentina. Instituto Nacional Tecnología Agropecuaria (INTA). Área Investigación y Desarrollo Tecn. Agricultura Familiar - Región Patagonia; ArgentinaFil: Marino de Remes Lenicov, Ana María. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Minghetti, Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Paradell, Susana Liria. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC PBA); ArgentinaFil: Rizzo, Maria Estefania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Pyrophagus tigrinus Remes Lenicov & Varela, sp. n.

Pyrophagus tigrinus Remes Lenicov & Varela, sp. n. (Figs 1–14) Description. Male. Small to medium-sized, predominantly macropterous forms. Length of macropterous form: 3.0 mm in male, 3.5 mm in female; brachypterous form: 2.0 mm in male, 2.4 mm in female. Macropterous form: Ground colour shiny dark brown; black on front and lateral parts of head including anterior 1 / 2 of genae, basal 1 / 3 of pronotum between lateral carinae, mesonotum, pleural areas of meso- and metathorax and coxae; distinctive creamy-white to yellowish on carinae of head, pronotum (except basal 1 / 3) and abdominal segments II (drumming organ), VII and VIII; light brown to yellowish on basal vertex, clypeus and legs, except basal segment. Wings semi-hyaline with pale brownish veins; fore wing with prominent black spot at apex of clavus along apical 1 / 2 of common stem of anal veins extending laterally toward commissural vein and with broad infuscate transverse stripe from inner tip of tegmina to middle of nodal line; distal veins darkened. Head (Figs 1, 2) including compound eyes 2.6 x wider than vertex at base, and slightly narrower than pronotum (0.8–0.9: 1); vertex subquadrate, lateral margins subparalleled, expanded laterally before and behind eye, in midline slightly longer than width at base (1,1: 1); basal compartment at hind margin twice as wide as greatest length, about 0.4 x length of vertex; stem of Y-shaped carina slender, delimiting shallow depressed areas on both sides; other carinae of head rounded and pronounced. Vertex evenly rounded to frons in profile, fastigium not projecting before eyes; arms of submedian carina meeting acuminately just anterior to apex. Frons in middle line longer than wide (2.2: 1), widest part at level or slightly below level of ocelli, lateral margins slightly convex, submedian carina simple, broadly rounded and prominent; frontal area on each side of carinae shallowly concave. Genal carina arising from lateral edge of frontoclypeal suture and ending before base of antenna. Postclypeal disc longer than width at base (1.5: 1); median and lateral carinae prominent, submedian carinae continuing onto anteclypeus. Post- and anteclypeus together little shorter than frons, in profile shallowly convex. Rostrum reaching anterior margin of metacoxa, apical segment slightly shorter than sub-apical segment (0.8: 1). Antennal segments cylindrical, slender, surpassing base of postclypeus; basal segment length nearly 2 x width, second segment longer than first segment (2.2: 1); number and arrangement of sensory fields of pedicel: 14 in 7 rows. Pronotum wider than head (1.1: 1), in midline slightly shorter than vertex; lateral carinae distinct, curved laterally behind eye, not reaching hind margin. Mesonotum medially 4 x length of pronotum, carinae distinct, straight, lateral and median carinae becoming obsolete prior to scutellum, which is lightly depressed and slightly transversally ribbed. Total length of mesoscutum disc 3 x that of scutellum. Tegmina (Fig. 3) rounded at apex, longer than abdomen, extending nearly 1 / 2 their length beyond abdomen, Sc + R branching before Cu branch, Sc cell shorter than Cu 1 b. Post-tibial spur (Figs 5, 6) tectiform, slender, slightly shorter than basitarsus (08: 1) with about 22 slender black-tipped teeth on posterior margin plus apical tooth; inner and outer margins slightly convex. Postbasitarsus as long as post-tarsal segments II and III together; spinal formula of hind leg: 5 (grouped 2 + 3) - 7 (grouped 2 + 5) - 4. Drumming organ distinctive, with second abdominal tergite differentiated into prominent plate system readily visible externally; medially convex subquadrate central plate laterocaudally closed by sclerotized furrows; apodemes of 2 nd abdominal sternite (Fig. 4) long, slender, erected dorsad. Brachypterous form: Coloration similar to macropterous form but with tegmina coriaceous, uniformly darkbrown with obscure veins; posterior margin subtruncate to slightly rounded, not surpassing 7 th abdominal tergite. Hind wing reduced to scale. Male genitalia. Genital segment (Figs 11, 12) dorsally short, ventrally 3 x longer than dorsally; ovate in caudal aspect, nearly twice as high as maximum width; dorsal margin V-shaped, deeply excavated to receive anal segment; in lateral view, dorsocaudal margins expanded in subquadrate lobe; ventrolaterally distinctly sinuous in profile, diafragma uniformly high and sclerotized, dorsal margin slightly medially produced in caudally protruded lobe; ventrocaudal margin trilobate, medioventral process strong, subquadrate and dorsocaudally produced, marginated with a small tooth, angular in profile. Parameres (Fig. 7) short, S-shaped, dorsolaterally directed, apposed near middle, sides on apical half sinuous, apex with outer angle fairly well produced and rounded, inner angle acute with tip moderately convergent. Aedeagus (Figs 8, 9) tubular, short, dorsocaudally directed, in lateral view, broader at base with small subbasal angular process arising on dorsal surface, shaft tapering, strongly reflexed ventrally in distal 1 / 3 forming spinelike process ventrally directed on right side; oval, subapical phallotrema on dorsal side. Connective (Fig. 10) large, slightly curved cephalad, strongly compressed, dorsally fused with ventral side of aedeagus chamber. Suspensorium forming short, rectangular plate, dorsally embracing base of aedeagus. Anal segment (Fig. 12) short, ringlike on caudal view, with two slightly flat ventrally directed processes on ventrocaudal angles with bases well separated and apically slightly diverging. Measurements of macropterous forms: L.T: 3 ± 0.02; B.L: 1.8 ± 0.01; W.: 0.9; t.l.: 2.8; t.n: 20–23. Measurements of brachypterous forms: L.T: 2.2 ± 0.02; W.: 0.9; t.l.: 1.4; t.n: 20–23. Female. Macropterous form: Structure and color pattern similar to male but abdomen and tegmina lighter and uniformly coloured, abdominal segments sometimes with darkish marks on each side of tergites and sternites. Drumming organ inconspicuous, without major morphological alterations. Brachypterous form: Structurally similar to brachypterous males with color pattern varying from darkish to uniformly yellowish, with intercarinal frontal region, gena and tegmina brownish with some dark spots on apical margin. Female genitalia (Fig. 14): Sternite V to VII membranous between sclerotized lateral plates. Ovipositor not surpassing anal segment; valvifers VIII (Fig. 13) expanded basally in inner lobe, covering anterolaterally ca. 1 / 3 of tergite IX; gonapophyses IX (Fig. 14) slender, dorsally finely denticulated, strongly curved in basal 1 / 2, with ca. 20–22 small sharp teeth on dorsal margin in distal 1 / 2, with distal apex narrow and strongly angled; anal style moderately short. Measurements of macropterous forms: L.T: 3.5 ± 0.03; W: 0.9; t.n: 20–23. Measurements of brachipterous forms: L.T: 2.4 ± 0.02; W: 0.9; t.n: 20–23. Etymology. The specific name is taken from the Greek word tigris “tiger”, in reference to the contrasting pattern of coloration. The name was emended with ‘- nus ’ to make it masculine in gender. Remarks. This new species can be easily recognized by the following characters: prothorax and abdomen blackish with yellow-cream marks; mesonotum uniformly dark; vertex subquadrate, rounded to frons in profile; male genitalia with pygofer with medioventral process strong, diaphragm uniformly wide and caudally produced, suspensorium short and aedeagus dorsocaudally directed and ending in a strongly reflexed, spinose process; and valvifers VIII in female basally expanded. Pyrophagus tigrinus resembles Delphacodes puella (Van Duzee, 1897) in the carination on head, color of pronotum and abdomen, and the markings and venation of fore wings, but differs from the latter in its vertex subquadrate, not projecting beyond the level of the eyes; antennae and legs longer; tegulae and mesonotum uniformly dark; and the shape of genitalia. Distribution. Argentina (Jujuy, Salta, Tucumán, Catamarca, La Rioja, San Juan, Mendoza, San Luis, Santiago del Estero, Chaco, Misiones, Corrientes, Entre Ríos, Santa Fe, Córdoba and Buenos Aires). Brazil (Paraná and Goias). Biology. Pyrophagus tigrinus is widely distributed in northern Argentina. It represents one of the most common species on forage Gramineae, including oat (Avena sativa L.), oat associated with rye and Melilotus sp., barley (Hordeum vulgare L.), maize (Zea mays L.), alepo sorghum (Sorghum halepense L.), triticale (X Triticosecale Wittmack), wheat (Triticum aestivum L.), Grama Rhodes (Chloris gayana Kunth), Gatton Panic (Panicum máximum L. cv. Gatton panic), weeping lovegrass (Eragrostis curvula (Schrad.) Ness), and hairy crabgrass (Digitaria sanguinalis (L.) Scop. Most of these plants have been demonstrated as host reservoirs of MRCV (Lenardón et al., 1997; Truol et al., 2001; Laguna et al 2002; Arneodo et al., 2002; Velazquez et al., 2006). Field studies have shown that its populations abruptly increase during summer on wheat and also on several wild grasses in cultivated maize areas affected by MRCV (Remes Lenicov, unpubl. data). Sanitary Importance. Pyrophagus tigrinus was first captured in 1997 in Jesús María (Córdoba) in triticale crops infected by MRCV. Recently, Velazquez et al. (2006) demonstrated its capacity to transmit the MRCV to triticale under experimental conditions. They found similarities in the symptoms and the viral dsRNA electrophoretic pattern with the MRCV using D. kuscheli as vector. They also observed MRCV-like particles in phloem tissue cells and highlighted the possible role of P. tigrinus as vector and reservoir of virus in nature as well as its implication in the spread of this disease. Natural Enemies. Nymphs and adults were found parasitized by one unidentified species of Elenchidae (Strepsiptera). Type Material. Holotype ♂ (macropter): ARGENTINA, Córdoba, Jesús María, on wheat, 10.xi. 1988, Velázquez col. Paratypes: 3 ♂♂ (brachypters), 3 ♀♀ (macropters), 2 ♀♀ (brachypters), same data as holotype; 2 ♂♂ (macropters), 2 ♀♀ (brachypters), Tucumán, La Virginia, 11.xii. 2008, Virla col.; 1 ♂ (macropter), 1 ♀ (brachypter), Buenos Aires, La Plata, on maize, xii. 1989, Remes Lenicov col. (MLP); 1 ♂ (macropter), 1 ♀ (brachypter), Buenos Aires, La Plata, on maize, xii. 1987, Remes Lenicov col. (MBR). Other Material Exmined. ARGENTINA: Jujuy, 1 ♂, San Pedro, s/ Cynodon sp., 6.iv. 1999, Virla col.; 1 ♀, Humahuaca, 8.iv. 1999, Virla col. Salta: 1 ♂, Tolloche, 6.i. 1999, Virla col.; 1 ♀, Pichanal, 24.iii. 2000, Virla col.; 2 ♂♂, La Estrella, 5.iv. 1999, Virla col.; 2 ♂♂, Tolombon, 21.iii. 2000, Virla col.; 2 ♀♀, Ceibalito, on maize, 5.iv. 1999, Virla col.; 2 ♂♂, Cabeza de Buey, on Sorghum halepense, tillered maize, 17.v. 1994, Virla col.; 2 ♂♂, Rosario de Lerma, on oat, 17.v. 1994, Virla col.; 1 ♂, 1 ♀, Cobos, tillered oat, 18.viii. 2001, Virla col.; 2 ♀♀ (brachypters), Metán, on tillered wheat, 18.viii. 2001, Virla, col. Tucumán: 4 ♂♂, 2 ♀♀, El Cadillal, on grass, xii. 1942, Virla col.; 1 ♂, Burruyacu, 24.ii. 2002, Virla col.; 2 ♀♀, Gdor. Garmendia, 24.ii. 2002, Virla, col.; 1 ♀, Amaicha del Valle, on tillered barley, 19.viii. 2001, Virla col.; 1 ♂, Chilcas, 25.iv. 2000, Virla col.; 1 ♂, 1 ♀, Macomitas, 19.x. 1999, Virla col.; 2 ♂♂, Leales, on oat and Melilotus sp., 16.ix. 1990, Virla col.; 1 ♂, El Mollar, 3.v. 1999, Virla col.; 1 ♂, Ampimpa, 2300 m, on wheat, 21.iii. 2000, Virla col.; 1 ♂, 1 ♀, El Cadillal, on maize, 7.i. 1993, Virla col.; 1 ♂, Rumi Punco, 20.ii. 1999, Virla col. Catamarca: 1 ♀, El Alamito, 28.ii. 1999, Virla col., 1 ♂, Cnia. del Valle, 25.ii. 1999, Virla col.; 1 ♂, S.F. del Valle, on grass, 27.ii. 1999, Virla col.; 2 ♂♂, Santa María, on barley, 13.vi. 2001, Virla col.; 2 ♀♀, Huillapima, 438 m, 4.xii. 2001, Virla col. Santiago del Estero: 2 ♂♂, Campo Experimental La María, Ruta 9 km. 1109, Virla col.; 1 ♂, Santiago del Estero, 27.ii. 1998, Virla col.; 1 ♂, 1 ♀, Las Romanos, on maize, 27.ii. 1998, Virla col.; 2 ♀♀ (brachypters), Loreto, on oat in flowering stage, 11.ix. 2001, Virla col.; 1 ♀, Isca Yacu (Pozo Hondo and Las Cejas), on oat in flowering stage, 11.ix. 2001, Virla col. Chaco: 2 ♀♀, Charata, on oat in vegetative stages, 27.viii. 2000, Virla col.; 1 ♂, Resistencia, 4.i. 1999, light trap, Virla col. La Rioja: 1 ♂, San Blas, on maize V 5–8 stage, 30.xi. 2001, Virla col.; 1 ♂, Villa Mazán, 4.xii. 2000, Virla col.; 1 ♀, Nonogasta, 3.xii. 2001, Virla col. San Juan: 2 ♂♂, Villa Media Agua, 560 m, on grass, 1.xii. 2001, Virla col.; 1 ♂, Jachal, on oat, 20.iii. 2002, Virla col. San Luis: 1 ♂, Merlo, on grass, xi. 1999, Remes lenicov col.; 1 ♂, Villa Mercedes, xii. 1999, Virla col. Mendoza: 2 ♂♂, 1 ♀, Uspallata, on potatoe, iv. 1945, Lanatti col. Misiones: 1 ♂, Aristóbulo del Valle, on grass, 1.iii. 2001, Virla col. Corrientes: 1 ♂, 1 ♀, Santo Tomé, ii. 1991; 1 ♀, San Roque, 2.iii. 2001, Virla col. Entre Ríos: 3 ♂♂, 2 ♀♀, Colón, ii. 1991, Remes Lenicov col. Santa Fe: 1 ♂, Suardi, on maize, 26.ii. 2001, Laguna col. Córdoba: 1 ♂, 1 ♀, Piquillin, on sorghum, 25.xi. 2003; 2 ♂♂, 3 ♀♀, Manfredi, on S orghum, xii. 1992, Remes Lenicov col.; 2 ♂♂, 2 ♀♀, Río Cuarto, on maize, xii. 1992, Dagoberto col.; 1 ♀, Jesús María, on wheat, x. 1988, Truol col.; 2 ♂♂, Las Peñas, on maize, 2.xii. 2002, Truol col. Buenos Aires: 3 ♂♂, 2 ♀♀, Peña, on wheat, iv. 1944; 1 ♂, 1 ♀, José C. Paz, xii. 1947, Martínez-Bezzi, col.; 2 ♂♂, 2 ♀♀, Bragado, on S orghum, i. 1980, Remes Lenicov col.; 3 ♂♂, 2 ♀♀, La Plata, on maize, xii. 1987, Remes Lenicov col.; 2 ♂♂, 1 ♀, Castelar, on wheat, maize, grass, xii. 1980, Dalbo col.; 1 ♂, 2 ♀♀, Gorina, on parsley, alfalfa and clover, xii. 1981, Dagoberto col. BRAZIL: 1 ♂, Parana, on maize, xii. 2006, Martins col.; 1 ♂, Goias, on maize, xii. 2006, Martins de Oliveira col.Published as part of Marino De Remes Lenicov, A. M. & Varela, G., 2014, A new genus and species of Delphacini (Hemiptera: Fulgoroidea: Delphacidae) from Argentina, pp. 177-184 in Zootaxa 3861 (2) on pages 179-182, DOI: 10.11646/zootaxa.3861.2.5, http://zenodo.org/record/23071