scholarly journals Contribución al conocimiento de la fauna de áfidos (Hemiptera, Aphididae) de la región de Aysén del General Carlos Ibáñez del Campo, Chile

2020 ◽  
pp. 37-45
Author(s):  
Juan M. Nieto Nafría ◽  
Jaime Ortego ◽  
M. Pilar Mier Durante
Keyword(s):  
Aphid Species ◽  
First Time

Resumen Se presenta la lista de las especies de pulgones o áfidos (Hemiptera, Aphididae) que se conocen en la región de Aysén del General Carlos Ibáñez del Campo (Chile), formada por 61 especies. De ellas, 49 se conocían en la región a finales de 2019, y 12 se citan ahora por primera vez como consecuencia del estudio de ejemplares colectados durante enero de 2019. Uroleucon patagonicum se cita por primera vez en Chile. Se precisan las provincias (Aysén, Capitán Prat, Coyhaique y General Carrera) en las que cada una de las especies ha sido citada previamente o se cita por vez primera. Abstra ct The list of aphid species (Hemiptera, Aphididae) that are known in the Aysén region of General Carlos Ibáñez del Campo (Chile) is presented, it consists of 61 species. Of them, 49 were known in the region at the end of 2019, and 12 more are cited for the first time, as a result of the study of specimens collected during January 2019. Uroleucon patagonicum is recorded for the first time in Chile. The provinces (Aysén, Capitán Prat, Coyhaique and General Carrera) in which each of the species has been previously cited or cited for the first time are specified.

scholarly journals Aphid species and morphs new to the fauna of Finland (Homoptera, Aphididae, Macrosiphini)

1990 ◽  
Vol 1 (2) ◽  
pp. 65-98
Author(s):  
Osmo Heikinheimo
Keyword(s):  
Diagnostic Value ◽  
Aphid Species ◽  
Junior Synonym ◽  
New Subgenus ◽  
First Time

Collecting data are represented on 26 species and subspecies new to Finland and some morphs are described for the first time. Comments on some species are given and new characters of diagnostic value are described for several species. Acyrthosiphon aurlandicum Heikinheimo, 1966 is a junior synonym of A. brachysiphon Hille Ris Lambers, 1952. A new subgenus, Metobion, with typus subgen. Acyrthosiphon (Metopolophium) graminearum Mordvilko, 1919, is erected in the genus Sitobion Mordvilko, 1914.

scholarly journals Virulence of Two Entomophthoralean Fungi, Pandora neoaphidis and Entomophthora planchoniana, to Their Conspecific (Sitobion avenae) and Heterospecific (Rhopalosiphum padi) Aphid Hosts

Insects ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 54 ◽  
Author(s):  
Ibtissem Ben Fekih ◽  
Annette Bruun Jensen ◽  
Sonia Boukhris-Bouhachem ◽  
Gabor Pozsgai ◽  
Salah Rezgui ◽  
...  
Keyword(s):  
Fungal Pathogens ◽  
Rhopalosiphum Padi ◽  
Aphid Species ◽  
Sitobion Avenae ◽  
Cereal Aphids ◽  
Infection Level ◽  
Initial Exposure ◽  
Pandora Neoaphidis ◽  
First Time ◽  
Aphid Host

Pandora neoaphidis and Entomophthora planchoniana (phylum Entomophthoromycota) are important fungal pathogens on cereal aphids, Sitobion avenae and Rhopalosiphum padi. Here, we evaluated and compared for the first time the virulence of these two fungi, both produced in S. avenae cadavers, against the two aphid species subjected to the same exposure. Two laboratory bioassays were carried out using a method imitating entomophthoralean transmission in the field. Healthy colonies of the two aphid species were exposed to the same conidial shower of P. neoaphidis or E. planchoniana, in both cases from a cadaver of S. avenae. The experiments were performed under LD 18:6 h at 21 °C and a successful transmission was monitored for a period of nine days after initial exposure. Susceptibility of both S. avenae and R. padi to fungal infection showed a sigmoid trend. The fitted nonlinear model showed that the conspecific host, S. avenae, was more susceptible to E. planchoniana infection than the heterospecific host R. padi, was. In the case of P. neoaphidis, LT50 for S. avenae was 5.0 days compared to 5.9 days for R. padi. For E. planchoniana, the LT50 for S. avenae was 4.9 days, while the measured infection level in R. padi was always below 50 percent. Our results suggest that transmission from conspecific aphid host to heterospecific aphid host can occur in the field, but with expected highest transmission success to the conspecific host.

scholarly journals Aphid species (Hemiptera: Aphididae) new in the fauna of the Eastern Beskid Mountains (southern Poland)

2018 ◽  
Vol 61 (1) ◽  
pp. 35-38
Author(s):  
Natalia KASZYCA ◽  
◽  
Miłosz MORAWSKI ◽  
Artur TASZAKOWSKI ◽  
Łukasz DEPA ◽  
...  
Keyword(s):  
Aphid Species ◽  
Southern Poland ◽  
First Time

Fifteen aphid species were found in the Eastern Beskid Mountains for the first time during the short faunistic study. Currently, 119 aphid species are recorded from this region, which may still constitute only a fraction of the fauna of neighboring regions and testify to an insufficient faunistic study on aphids.

scholarly journals Twenty Three Aphid Species Νew to the Greek Aphidofauna Caught in Yellow Water Traps in Tobacco Fields

2017 ◽  
Vol 11 ◽  
pp. 23
Author(s):  
D.P. Lykouressis ◽  
V.F. Eastop ◽  
N. Katis ◽  
J.A. Tsitsipis ◽  
Η. Ntjanis
Keyword(s):  
New Records ◽  
Species Abundance ◽  
Aphid Species ◽  
Water Traps ◽  
First Time

Aphid species abundance was studied by means of yellow Moericke water traps in several tobacco fields in two tobacco growing areas, Aitoloakarnania and Pieria, Greece. In 1992, from alate catches, in three different localities in Aitoloakarnania, a total number of 69, 40 and 31 taxa were caught and identified. Five of them are new records for the Greek aphidofauna. In 1993, from the traps established near Agrinio and in Nea Ephessos, Pieria, a total number of 55 and 139 aphid taxa were caught and identified. Twenty one of them aphid species are new records for Greece of which 3 had been already recorded in the previous year. In total, 23 aphid species recorded for the first time in Greece are presented in this work.

scholarly journals New for Lithuania aphid species of the tribe Eulachnini (Hemiptera: Aphididae, Lachninae): is there any threat to local coniferous forests?

2019 ◽  
Vol 25 (1) ◽  
Author(s):  
Jurij Danilov ◽  
Jekaterina Havelka ◽  
Rimantas Rakauskas
Keyword(s):  
Host Plants ◽  
Aphid Species ◽  
Northern Caucasus ◽  
Coniferous Forests ◽  
Forest Pest ◽  
Forest Pests ◽  
Coi Sequences ◽  
Ecological Specificity ◽  
Available Information ◽  
First Time

Information about Eulachnini species in Lithuania concerns fragmentary faunistic data, therefore, their diversity, abundancy and ecological specificity is insufficiently studied. The aim of this work was to present available information on the new to Lithuania Eulachnini aphid species detected on coniferous plants in Lithuania in 2004 - 2017, with special regard to their potential impacts on forestry. Partial COI sequences (652 bp) were used to confirm morphology-based identification of new to Lithuania Eulachnini species and to investigate their genetic diversity and relationships with samples collected in other countries. Twenty-seven aphid species of the tribe Eulachnini were detected in 2004 – 2017 in Lithuania. Eight of them are reported from Lithuania for the first time: Cinara (Cinara) brauni, C. (C.) kochiana, C. (C.) neubergi, C. (C.) laricis, C. (C.) pectinatae, C. (C.) piceae, Eulachnus brevipilosus and E. nigricola. Five species of Eulachnini (C. (C.) piceae, C. (C.) nuda, C. (C.) piceicola, C. (C.) pinea, and C. (C.) pini) appeared to be most promising honey dew producers because their host plants, Picea abies and Pinus sylvestris, are the most common conifers in Lithuania. Although five species of Eulachnini were listed in the identification key of forest pests in Lithuania, none of them were of particular importance for now. Out of the recently reported species, only Cinara piceae may be a potential forest pest as it appeared to be rather common in Lithuania and it has been reported as a pest of firs in nurseries of Czech Republic and Northern Caucasus. Most of the samples from Lithuania represented COI haplotypes, which were not previously detected in other countries.

scholarly journals Diversity of aphids (Hemiptera: Aphididae) associated with potato crop in Tizi-Ouzou (North of Algeria), with new records

2021 ◽  
Vol 117 (1) ◽  
pp. 1
Author(s):  
Samia AIT AMAR ◽  
Karima BENOUFELLA-KITOUS
Keyword(s):  
Myzus Persicae ◽  
New Records ◽  
Potato Crop ◽  
Abundant Species ◽  
Aphid Species ◽  
Crop Plants ◽  
Yellow Traps ◽  
First Time ◽  
Sampling Season ◽  
Brachycaudus Helichrysi

<p>Aphids are among the phytophagous pests that cause serious damage to crop plants. In Northern Algeria, we have little information on their diversity. In this context, the study of the diversity of aphids was carried out in three regions of Tizi-Ouzou (North of Algeria) namely Tizi-Ouzou center, Tizi-Rached and Aghribs on the potato crop using yellow traps. The results showed a total richness of 65 aphid species, divided into 36 genera, 9 tribes and 8 sub-families, of which 11 species were identified for the first time in Algeria. These are <em>Aphis coreopsidis</em> (Thomas, 1878), <em>Capitophorus hippophae</em> (Walker, 1852), <em>Cavariella theobaldi </em>(Gillette &amp; Bragg, 1918), <em>Hyadaphis coriandri </em>(B. Das, 1918), <em>Macrosiphoniella linariae </em>(Koch, 1855),<em>Monelliopsis pecanis </em>Bissell, 1983, <em>Myzus hemerocallis</em> Takahashi, 1921, <em>Pseudoregma panicola </em>(Takahashi, 1921), <em>Rhopalosiphoninus staphyleae</em> (Koch, 1854), <em>Schizaphis eastopi</em> Van Harten &amp; Ilharco, 1971 and <em>Ovatus inulae </em>(Walker, 1849)<em>. </em>The field located in the center of Tizi-Ouzou is the richest with 55 species, followed by the field of Tizi-Rached with 30 species, and 24 species have been recorded in Aghribs. During the sampling season, <em>Hyperomyzus lactucae</em> (Linnaeus, 1758) and <em>Brachycaudus helichrysi</em> (Kaltenbach, 1843)  are the most abundant species with 24.44 % and 21.8 % respectively. Three aphid species have been observed on potato leaves, namely <em>Macrosiphum</em> <em>euphorbiae</em> (Thomas, 1878), <em>Aphis</em> <em>gossypii</em> Glover, 1877  and <em>Myzus persicae</em> (Sulzer, 1776). The latter species was observed in all three study regions.</p>

Hitherto unknown and poorly known morphs of Macrosiphoniella davazhamci and M. nikolajevi (Hemiptera: Aphididae)—aphid species new to Iran 

Zootaxa ◽  
2018 ◽  
Vol 4524 (5) ◽  
pp. 536 ◽  
Author(s):  
MARIUSZ KANTURSKI ◽  
SHALVA BARJADZE
Keyword(s):  
Host Plants ◽  
Aphid Species ◽  
First Time

We present the first records from Iran of Macrosiphoniella (Asterobium) davazhamci Holman & Szelegiewicz, 1974 and M. (Ramitrichophorus) nikolajevi Kadyrbekov, 1999 (Hemiptera: Aphididae: Aphidinae) from samples collected by the late Prof. G. Remaudière. Previously, Macrosiphoniella davazhamci was known from Kazakhstan, Mongolia and China, whereas M. nikolajevi only from south Kazakhstan. The Iranian material includes hitherto unknown or poorly known morphs of those two species. We describe and illustrate for the first time the alate vivipara of M. nikolajevi and the ovipara and alate male of M. davazhamci. Additionally, we redescribe the poorly known alate vivipara of the latter species. Notes on the distribution and host plants in Iran are also provided. 

scholarly journals Citrus Psorosis Virus: Current Insights on a Still Poorly Understood Ophiovirus

2020 ◽  
Vol 8 (8) ◽  
pp. 1197
Author(s):  
Zineb Belabess ◽  
Tourya Sagouti ◽  
Naima Rhallabi ◽  
Abdessalem Tahiri ◽  
Sébastien Massart ◽  
...  
Keyword(s):  
Control Strategies ◽  
Seed Transmission ◽  
Aphid Species ◽  
Natural Resistance ◽  
Detection Methods ◽  
The Family ◽  
Open Structures ◽  
New Varieties ◽  
Citrus Psorosis Virus ◽  
First Time

Citrus psorosis was reported for the first time in Florida in 1896 and was confirmed as a graft-transmissible disease in 1934. Citrus psorosis virus (CPsV) is the presumed causal agent of this disease. It is considered as a type species of the genus Ophiovirus, within the family Aspiviridae. CPsV genome is a negative single-stranded RNA (-ssRNA) with three segments. It has a coat protein (CP) of 48 kDa and its particles are non-enveloped with naked filamentous nucleocapsids existing as either circular open structures or collapsed pseudo-linear forms. Numerous rapid and sensitive immuno-enzymatic and molecular-based detection methods specific to CPsV are available. CPsV occurrence in key citrus growing regions across the world has been spurred the establishment of the earliest eradication and virus-free budwood programs. Despite these efforts, CPsV remains a common and serious challenge in several countries and causes a range of symptoms depending on the isolate, the cultivar, and the environment. CPsV can be transmitted mechanically to some herbaceous hosts and back to citrus. Although CPsV was confirmed to be seedborne, the seed transmission is not efficient. CPsV natural spread has been increasing based on both CPsV surveys detection and specific CPsV symptoms monitoring. However, trials to ensure its transmission by a soil-inhabiting fungus and one aphid species have been unsuccessful. Psorosis disease control is achieved using CPsV-free buds for new plantations, launching budwood certification and indexing programs, and establishing a quarantine system for the introduction of new varieties. The use of natural resistance to control CPsV is very challenging. Transgenic resistance to at least some CPsV isolates is now possible in at least some sweet orange varieties and constitutes a promising biotechnological alternative to control CPsV. This paper provides an overview of the most remarkable achievements in CPsV research that could improve the understanding of the disease and lead the development of better control strategies.

scholarly journals Aphid Species (Hemiptera: Aphididae) Reported for the First Time in Tucumán, Argentina

2014 ◽  
Vol 97 (4) ◽  
pp. 1277-1283 ◽  
Author(s):  
A. L. Avila ◽  
M. A. Vera ◽  
J. Ortego ◽  
E. Willink ◽  
L. D. Ploper ◽  
...  
Keyword(s):  
Aphid Species ◽  
First Time

scholarly journals Social transmission of information about a mutualist via trophallaxis in ant colonies

2017 ◽  
Vol 284 (1861) ◽  
pp. 20171367 ◽  
Author(s):  
Masayuki Hayashi ◽  
Masaru K. Hojo ◽  
Masashi Nomura ◽  
Kazuki Tsuji
Keyword(s):  
Aphid Species ◽  
Model System ◽  
Aphis Craccivora ◽  
Social Transmission ◽  
Ant Colonies ◽  
Tetramorium Tsushimae ◽  
Mutualistic Interaction ◽  
Transmission Of Information ◽  
Mutualistic Association ◽  
First Time

Partner discrimination is crucial in mutualistic interactions between organisms to counteract cheating by the partner. Trophobiosis between ants and aphids is a model system of such mutualistic interaction. To establish and maintain the mutualistic association, ants need to correctly discriminate mutualistic aphids. However, the mechanism by which ants recognize aphids as their partners is poorly understood, despite its ecological and evolutionary importance. Here, we show for the first time the evidence that interaction with nest-mates that have tended aphids ( Aphis craccivora ) allows ants ( Tetramorium tsushimae ) to learn to recognize the aphid species as their partner. When ants had previously tended aphids, they moderated their aggressiveness towards aphids. More importantly, ants that had interacted with aphid-experienced nest-mates also reduced their aggressiveness towards aphids, even though they had never directly experienced them, indicating that aphid information was transmitted from aphid-experienced ants to inexperienced ants. Furthermore, inhibition of mouth-to-mouth contact (trophallaxis) from aphid-experienced ants to inexperienced ants by providing the inexperienced ants with artificial honeydew solution caused the inexperienced ants to become aggressive towards aphids. These results, with further supporting data, strongly suggest that ants transfer information on their mutualists during trophallactic interactions.

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