From Asia to Europe? Where Could the Geographical Place of Origin of Polymerus (Pachycentrum) carpathicus (Horváth, 1882) (Hemiptera: Miridae) Be?

This paper presents the first record of a rare species of Miridae, Polymerus (Pachycentrum) carpathicus (Horváth, 1882), in Poland. A broad analysis of its occurrence was conducted, which was based on modelling its potential ecological niche using past and future models, which enabled new and valuable information about the potentially suitable habitats and its possible range of distribution as well as its climatic preferences to be identified. The results of the research indicate that P. (P.) carpathicus prefers habitats in highlands and mountains. This species probably came to Europe from Asia via a postglacial migration and the disjunctive range that characterises P. (P.) carpathicus may be due to a lack of data. Additionally, the key to identifying the Polish species from the subgenera Pachycentrum and Polymerus and maps of their distribution in Poland are also presented.

First record of a highly melanic morph of Cyphostethus tristriatus (Fabricius, 1787) (Hemiptera: Heteroptera: Acanthosomatidae).

The term 'melanism' means the occurrence of variant(s) that is/are mostly or completely dark in pigmentation either as intraspecific polymorphisms or as fixed differences between closely related species. Melanism can refer to variation involving discrete melanic and non-melanic phenotypes (melanic and typical morphs) or to cases of continuously varying pigmentation (True 2003). Melanism of moths inhabiting areas with industrial pollution is a very well-known example involving melanic polymorphisms in insects. However, melanism is also known in other insect orders, e.g. Coleoptera and Diptera (Majerus 1998, True 2003).