Balticeler kerneggeri gen. nov. , sp. is described based on six fossil specimens preserved in Eocene Baltic amber and imaged using light microscopy X-ray micro-computed tomography. Based certain characters observed the species it considered a “middle grade” Carabidae, outside of large family Harpalinae (as possesses scrobal seta, lack which synapomorphy that subfamily), but possessing four syna...

Abstract Agricultural intensification has caused a simplification of agricultural landscapes, accompanied by increasing field sizes and reduction non-crop habitats. To mitigate negative impacts intensification, it is necessary to understand what extent different habitats contribute the maintenance biodiversity in agroecosystems. Here, we compared taxonomic diversity three beetle families among ...

Most transgenic corn seed is now treated with systemic neonicotinoid insecticides. To address potential direct nontarget effects of these combined technologies, 16 Carabidae species from 10 genera (Agonum, Amara, Anisodactylus, Bembidion, Chlaenius, Harpalus, Patrobus, Poecilus, Pterostichus, and Scarites) Þeld-collected from corn were directly exposed to Bacillus thuringiensis (Bt) Cry toxin-l...

Increased interest in biomass harvesting for bioenergetic applications has raised questions regarding the potential ecological consequences on forest biodiversity. Here we evaluate the initial changes in the abundance, species richness and community composition of rove (Staphylinidae) and ground beetles (Carabidae), immediately following 1) stem-only harvesting (SOH), in which logging debris (i...

Northeastern U.S. farms are often situated adjacent to forestland due to the heterogeneous nature of the landscape. We investigated how forested areas influence Carabidae diversity within nearby crop fields by establishing transects of pitfall traps. Trapping extended across a forest-agriculture ecotone consisting of maize, an intermediate mowed grass margin, and a forest edge. Carabidae divers...

poecilus beesoni (andrewes) collected at lake izeh (khuzestan) is recorded for the first time for iran. for identification the holotypes of poecilus beesoni and p. affinissimus were compared. based on this study poecilus affinissimus (ali 1967) is synonymized with poecilus beesoni (andrewes, 1927).