Delimitation of the widely distributed Palearctic species (Hemiptera, Heteroptera, Miridae): insights from molecular and morphological data.

Species delimitation presents a significant challenge in biology, particularly in systematics. Here, an integrative approach is employed to assess the species boundaries of widely distributed Palearctic species. Due to their diversity, wide distribution, and the absence of comprehensive morphological and molecular data for most species, revising is both daunting and time-consuming.

gen. et sp. nov., the world's most high-altitude hypogean trechine beetle from China (Coleoptera, Carabidae, Trechinae).

A new genus and new species of carabid beetle, , is described from mountains SW of Mianning City, Sichuan Province, China. This finding, from one side, extends the known distribution of Chinese hypogean trechines, and from another, it raises the upper limit of their vertical distribution to nearly 4000 m. Photographs of the habitus and major taxonomic characters, including the male genitalia, right mandible, and microsculpture patterns of the integument are supplied.