Mszyce (Homoptera, Aphidoidea) roślin sadowniczych Polski. 4. Gatunki występujące na gruszy

The sexuales of Thelaxes suberi (Hemiptera, Aphidoidea: Thelaxinae).

The oviparous female and male of Thelaxes suberi (del Guercio) are described and illustrated in detail for the first time. Notes on distribution, biology and host plants are presented, and keys are provided to the known sexuales of European Thelaxes species.

The Phylogeny of the Homoptera

بررسی دینامیک ملکولی شیشه فلورید Zr/Ba/Na در فشار جو و 4 گیگاپاسکال

  A constant volume, atmospheric pressure Zr/Ba/Na fluoride glass has been simulated by molecular dynamics with the limitations of the Born-Mayer-Huggins potentials, used previously and resulting in high simulation pressures, having been overcome. The simulated structure of this glass as well as its activation energy for diffusion are in very good agreement with those experimentally observed. T...

New records of helminth species and their hosts in Poland.

Information on species of parasitic helminths native to Poland is provided by the Pasozytnicze helminty Polski. Gatunki. Zywiciele. Białe Plamy. Until the middle of 2007, there were 1205 species of recorded helminths including 126 species of Monogenea, 338 of Trematoda (Digenea), 279 of Cestoda, 427 of Nematoda and 35 of Acanthocephala. They represented 32.9% of the species recorded in Europe (...

Shenahweum minutum (Hemiptera, Aphidoidea: Drepanosiphinae)-taxonomic position and description of sexuales.

The oviparous female and winged male of Shenahweum minutum (Davis) are described and illustrated in detail for the first time. Notes on distribution and host plants are presented as well as additional taxonomic data on the genus.