The karyological features of Akis subtricostata was determined for the first time with conventional and silver nitrate staining. diploid number 2n=16 meioformula 7+neoXY represents a deviation from modal karyotype Coleoptera. pericentromeric heterochromatin detected both Giemsa In addition to determining single possible NOR on prophase I nuclei, AgNO3 revealed that several telomeric regions mit...

We studied the diversity of beetle families in watermelon fields palm grove Zaatote at Ouargla (34º 54′ N, 5º 20′ E). The sampling method used was Barber pots as they allowed largest number captures insects, regarding both individuals and species. Over three years study (2016, 2017 2018), we identified 787 from 12 taxonomic families. Throughout period, Coccinellidae family clearly dominant, wit...

The pupal stage of eleven Opatrini species occuring in the northern China are described and a key for their identifiaction is provided. The species are Scleropatrum horridum horridum Reitter, Gonocephalum reticulatum Motschulsky, Opatrum (Opatrum) subaratum Faldermann, Eumylada potanini (Reitter), Eumylada punctifera (Reitter), Penthicus (Myladion) alashanicus (Reichardt), Penthicus (Myladion) ...

Callyntra Solier, 1836 is a genus mainly from Chile, with one species occurring in Argentina, which currently contains 20 described species. Recent explorations in the Andes Mountain Range in Chile, have resulted in the collection of specimens morphologically different from all previously described species. The aim of this paper is to describe a new species of Callyntra, discuss its relationshi...

Chemoperception in invertebrates is mediated by a family of G-protein-coupled receptors (GPCR). To date nothing is known about the molecular mechanisms of chemoperception in coleopteran species. Recently the genome of Tribolium castaneum was sequenced for use as a model species for the Coleoptera. Using blast searches analyses of the T. castaneum genome with previously predicted amino acid sequ...