The pollination ecology of Eremosparton songoricum (Litv.) Vass., a rare desert species endemic to central Asia, was examined by a series of observational studies and manipulative experiments in two natural populations during 2007–2008. Results showed that the duration of flowering lasted 21 and 23 days, respectively, in Populations A and B from late May to late June in 2008. Anthesis of a sing...

Over the period 2006–2010, 40 species of primary parasitoids belonging to eleven genera were found and reared from 50 species of host aphids, from a total of 106 host plants collected from 62 localities all around Slovenia. Over 230 tritrophic associations have been reviewed, including four associations which are reported for the first time; Ephedrus plagiator/ Staticobium limonii/ Limonium ang...

Several species of the genus Aphidius are used in biological control programs against aphid pests throughout the world and their behavior and physiology are well studied. But despite knowing the importance of sensory organs in their behavior, their antennal structure has never been described. We describe here the types and distribution of antennal sensilla in Aphidius rhopalosiphi, a larval par...

Four new species are described: Pseudepipona (Deuterepipona) kostylevi Fateryga, sp. nov. (Turkmenistan, Uzbekistan, Kazakhstan), P. (D.) nikolayi (Kazakhstan), popovi (Turkmenistan), and vladimiri (Kazakhstan). A synonymy is proposed: superba (Morawitz, 1867) = tricolor Gusenleitner, 1976, syn. Lectotypes designated for two species: herzi 1895) superba. Two species, both not occurring in the r...

Host recognition and use in female parasitoids strongly relies on host fidelity, a plastic behavior which can significantly restrict the host preferences of parasitoids, thus reducing the gene flow between parasitoid populations attacking different insect hosts. However, the effect of migrant males on the genetic differentiation of populations has been frequently ignored in parasitoids, despite...

Many fungal root symbionts of the genus Trichoderma are well-known for their beneficial effects on agronomic performance and protection against plant pathogens; moreover, they may enhance protection from insect pests, by triggering plant resistance mechanisms. Defense barriers against insects are induced by the activation of metabolic pathways involved in the production of defense-related plant...

In this paper, an explicit formulation for multivariate truncated power functions of degree one is given firstly. Based on multivariate truncated power functions of degree one, an formulation is presented which counts the number of non-negative integer solutions of s × (s + 1)linear Diophantine equations and it can be considered as a multidimensional versions of the formula counting the number ...

Here we present additional data on the Aphidiinae fauna of Kyrgyzstan. We identified 18 species. One species new to science ( Trioxys depressus sp. nov. ) is described, while 11 are reported for first time: Aphidius avenae Haliday, A. ervi matricariae salicis urticae Ephedrus cerasicola Starý, E. niger Gautier, Bonnamour & Gaumont, Lysiphlebus cardui (Marshall), L. confusus Tremblay Ead...