Species diversity of the subfamily Meligethinae occurring in oilseed rape crop fields in the Croatia

Identifikacija odraslih oblika vrsta potporodice Meligethinae na području Republike Hrvatske obavljena je temeljem morfometrijskih obilježja i sekcije spolnih organa. Uzorci su skupljeni tijekom 2013. godine (fenofaza razvoja uljane repice BBCH 50-55) na 19 lokaliteta u sedam županija. Identificirane su sljedeće vrste: Brassicogethes aeneus (Fabricius, 1775), Brassicogethes viridescens (Fabricius, 1787), Brassicogethes coracinus (Sturm, 1845), Clypeogethes lepidii (Miller, 1851) i Fabogethes nigrescens (Stephens, 1830). Podatci o kvantitativnom omjeru navedenih vrsta pokazuju da je B. aeneus eudominantna vrsta. Naime, raznolikost vrsta i njihovi kvantitativni omjeri imaju važnu ulogu u istraživanju rezistentnosti repičina sjajnika jer različite vrste pokazuju različitu osjetljivost na piretroide.Identification of the adult forms of species subfamily Meligethinae and their dominance in Croatia was based on morphometric characters and on differences in male and female genitalia. Samples were collected during the 2013 year (developmental stages of rapeseed BBCH 50-55) at 19 sites in seven counties. The following species were identified: Brassicogethes aeneus (Fabricius 1775), Brassicogethes viridescens (Fabricius 1787), Brassicogethes coracinus (Sturm 1845), Clypeogethes lepidii (Miller 1851) and Fabogethes nigrescens (Stephens 1830). Data on the quantitative ratio of these species showed that B. aeneus was eudominant species. The diversity of species and their quantitative ratios have an important role in the study of pollen beetle resistance because different species indicate different sensitivities to pyrethroids