Recent changes in aphid (Hemiptera, Sternorrhyncha: Aphididae) fauna of Lithuania: an effect of global warming?

Two new (Aphis oenotherae and Brachycaudus divaricatae) and one rare (Dysaphis pyri) for Lithuania aphid species of southern origin were found in great numbers in southeastern Lithuania in 2002. Global warming, seasonal migrations and changes in the aphid life cycles are considered as possible reasons for the establishment of southern-born aphid species in Lithuania. D. pyri and B. divaricatae are potential orchard pests in this country

Hemiptera records from Lake Spechtensee and from Southern Styria (Austria)

Hemiptera records gained in July 2015 in course of the 7th European Hemiptera Congress in Styria are presented. In total, 144 Auchenorrhyncha, 143 Heteroptera, 13 Psylloidea and 2 Aphididae species were collected. Ribautodelphax imitans (Delphacidae), Eurhadina saageri (Cicadellidae), Notonecta maculata (Notonectidae), Notonecta meridionalis (Notonectidae) and Polymerus cognatus (Miridae) are new records for Styria

Species of Aphis inhabiting European Oenothera : their biology, morphology and systematics (Hemiptera: Aphididae) /

Information on the Aphis species that feed on evening primroses (Oenothera spp.) has been summarized in the catalogue of the aphid species inhabiting herbaceous plants of the world (Blackman & Eastop, 2006). Recent descriptions of the European species, A. holoenotherae (Rakauskas, 2007), that appeared to be a sibling of the American A. oenotherae, demonstrated the need of reexamining the current state of knowledge of the Aphis species inhabiting evening primroses in Europe. The present study, based on published original data, revealed nine aphid species of the genus Aphis which are capable of living on Oenothera plants in Europe. Only two of them are really dependent on Oenothera species during their life cycle: A. oenotherae Oestlund and A. holoenotherae Rakauskas. They have different life cycles and host plant spectrum, although they are very close in their morphology. Processus terminalis length appeared to be the most reliable morphological character in distinguishing between apterous and alate viviparous females, and males of A. oenotherae and A. holoenotherae at the present time. A. grossulariae is not a typical Oenothera-feeder in Europe, occurring on evening primroses only by chance. Other Aphis species (epilobiaria, fabae, sambuci, praeterita, frangulae, nasturtii), are opportunistic inhabitants of Oenothera plants. Information about host specificity and morphology of the Oenothera-inhabiting European Aphis species is summarized, and a key for the entire range of species found living on European Oenothera is provided

Algorithm for the Solution of multidimensional vibrational Schroedinger Equation

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Theoretical Investigation and Mathematical Modelling of Excited States of Small Molecules

Available from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio

Naujos Lietuvos amarų (Hemiptera, Sternorrhyncha: Aphididae) faunos rūšys

Aphid species Panaphis juglandis (Goeze), Aphis nepetae Kalt., Dysaphis tulipae (B. de F.) and Myzus (Nectarosiphon) ascalonicus Done. are recorded for the fauna of Lithuania for the first time with comments on their general distribution areas, life cycles, host specificity and potential harmfulnessVilniaus universitetasVytauto Didžiojo universiteta

Brachycaudus divaricatae Shaposhnikov (Hemiptera: Aphididae) - maitinančių augalų kaita kelia grėsmę slyvų auginimui

Pateikiama informacija apie Lietuvoje aptiktų Brachycaudus divaricatae populiacijų mitybinę specializaciją. Invazinė Baltijos regione amarų rūšis B. divaricatae Lietuvoje dažniausiai sutinkama ant kaukazinės slyvos (Prunus cerasifera), pasižymi fakultatyviai sutrumpėjusiu vystymosi ciklu: žiemojantys kiaušiniai amarų kolonijose randami jau nuo birželio antros pusės. Pastaroji amarų rūšis jau žinoma kaip kaukazinių slyvų kenkėja Lietuvoje ir Lenkijoje. Lietuvoje ji aptikta taipogi ant naminės (P. domestica) ir kininės (P. salicina) slyvos veislių, pvz. "Skoroplodnaya". Perspektyvoje B. divaricatae gali tapti pavojingu slyvų kenkėjuInformation on host specificity of Lithuanian populations of Brachycaudus divaricatae Shaposhnikov, 1956 is presented with remarks on the possible pest status of this species. B. divaricatae, an adventitious aphid species in the Baltic region, is changing its host specificity and life cycle in Lithuania. Lithuanian populations of B. divaricatae are monoecious on the cherry plum (Prunus cerasifera) with a facultatively shortened life cycle: sexual morphs and winter eggs appear from the end of June. B. divaricatae has already established itself as a pest of cherry plums in Lithuania and Poland. In Lithuania, it also endangers cultivated varieties of P. domestica and P. salicina. That poses a potential threat to stone fruit production in the Baltic regionVilniaus universitetasVytauto Didžiojo universiteta

Relationships between aphid species of the family Adelgidae (Hemiptera Adelgoidea) and their endosymbiotic bacteria: a case study in Lithuania

Partial sequences of COI and EF-1α of nine aphid species of the family Adelgidae and partial sequences of 16S rRNA of their endosymbiotic bacteria were used to reveal co-evolutionary relationships between endosymbiotic bacteria and their aphid hosts in Lithuania. In addition to currently recognized taxa of gamma- and beta-proteobacterial endosymbionts (“Candidatus Vallotia”, “Candidatus Profftia”, “Candidatus Annandia”, “Candidatus Hartigia”, “Candidatus Ecksteinia”, “Candidatus Steffania” and “Candidatus Gillettellia”) of Adelgidae, new gamma-proteobacterial (Sodalis-allied) endosymbionts were detected in Adelges (Aphrastasia) pectinatae and Pineus cembrae. Cophylogenetic analyses based on aphid partial COI and EF-1α sequences and 16S rRNA gene fragment of their endosymbiotic bacteriae showed reliable cophylogenetic events confirming the importance of host aphid species relatedness in structuring symbiont communities of adelgid aphid species. Molecular aphid species delimitation analyses based on Bayesian phylogenies of aphid COI and EF-1α and bacterial 16S rRNA fragments indicate adelgid species complexes Adelges (Adelges) laricis - Adelges (Adelges) tardus, Adelges (Gilleteella) cooleyi - Adelges (Gilleteella) coweni, Adelges (Dreyfusia) nordmannianae - Adelges (Dreyfusia) piceae, Adelges (Sacchiphantes) abietis - Adelges (Sacchiphantes) viridis and Pineus pini - Pineus orientalis representing single species each