Nine species of Palaearctic Myrmillinae with females bearing two round spots on the second metasomal tergite, currently assigned to two genera, Blakeius Ashmead, 1903 and Liomutilla André, 1907, are revised and their phylogenetic relationships are investigated. The cladistic analyses demonstrate that Blakeius is not strictly monophyletic but includes three distinct lineages: Blakeius s. str., c...

Thirteen relatively frequently collected species of baridine weevils from mainland China were mapped to improve our understanding of biogeographic patterns and distributional ranges of Baridinae in the Palaearctic and Oriental regions. This simple case study showed that taxonomists tend to underestimate the spatial scope required in regional investigations and descriptive works often resulting ...

In our recent paper on Palaearctic Docosia Winnertz, 1863, a new species was described under the name Docosia turkmenica Kurina & Ševčík, 2012. The material originated from the Kopet Dag Mountains (Big Bakhcha River) in southwest Turkmenistan and was named for its occurrence in the country (Kurina & Ševčík 2012). Unfortunately, the authors were not aware of a previous paper by Zaitzev (2011) de...

The geographic range of the rare coleopteran Tragosoma depsarium (Linnaeus, 1767) is summarized, and Eurasian distribution mapped for first time. Particular attention paid to eastern Palaearctic part species’ range, where dubious data prevail. Distributional from Russian Far East have been published, but not confirmed, are considered, new records this species in Eastern Siberia report...

The spatial distribution of 39 species Chydoridae, representing seven families, was examined in a stratified Palaearctic lake Poland (Lake Piaseczno). Thirty-one the living that were found to exist exclusively littoral zone. No pelagic zone; this zone, eight identified, but all these also quite abundant Almost Chydoridae and Macrothricidae only littoral, whereas Daphnidae Sididae families compr...