Because of its direct consequences on reproductive success, body condition is an often-studied individual trait in insects. Various studies on insects use disparate methods to assess "body condition." However, it is doubtful that the results obtained by disparate methods are comparable. In this study, the body conditions of Poecilus cupreus (Linnaeus) (Coleoptera: Carabidae) from eight sites we...

Pentatomidae is a family of Heteroptera which includes several agriculture pests that have had different aspects of their meiosis and spermiogenesis analyzed. In the present study we analyzed the morphological patterns of the heteropycnotic chromatin and the nucleolar material of Mormidea v-luteum, Oebalus poecilus and Oebalus ypsilongriseus. The three species presented multilobate testes, with...

Heteropteran insects are characterized by holokinetic chromosomes, and, in most species, the post-reductional meiotic division of sex chromosomes and the presence of one chiasma per bivalent. The Reduviidae have a modal diploid autosomal number of 20 with a range between 12 to 34, and both simple and multiple sex chromosome systems (XY/XX, X0/XX, XnY/XnXn). Within this family cytogenetic report...

The aim of our study is to assess changes in soil macroinvertebrate biodiversity when conventional tillage (CT) replaced by no-tillage (NT) agroecosystems the southern part West Siberian forest steppe. research was conducted Novosibirsk region at end May 2017, 2018, and June 2018. agricultural plots with CT NT were located close each other on identical soils, a distance about 200 m from nearest...