22 Eyl 2025 Pazartesi
Ultrastructures of aedeagus and spermatheca of two species of the nominate subgenus Chaetocnema (Chaetocnema) Stephens, 1831 (Chrysomelidae: Galerucinae: Alticini) by Scanning Electron Microscope
Abstract : The paper presents unknown ultrastructures of aedeagus and spermatheca of Chaetocnema breviuscula (Faldermann, 1837) and Chaetocnema tibialis (Illiger, 1807) which is two of the species of the subgenus Chaetocnema (Chaetocnema) Stephens, 1831 are studied and figured under both stereo microscope and Scanning Electron Microscope from Turkey for the first time. The studied specimens were collected from Ankara, Çankırı, Kayseri and Konya provinces in 2003, 2013, 2014, 2016, 2017, 2018 and 2019. Aedeagi and spermathecae so far were studied on the basis of only stereo microscopic studies within the genus Chaetocnema Stephens. Until now, there is only two ultrastructural study with SEM on male and female genitalia of Chaetocnema concinna and Chaetocnema scheffleri in the subgenus Chaetocnema (Chaetocnema) Stephens, 1831, therefore, the present study is the first for these two species mentioned above. In accordance with this, to reveal and to obtain new diagnostic characters with ultrastructural and detailed investigations of aedeagus and spermatheca of the species Chaetocnema breviuscula (Faldermann, 1837) and Chaetocnema tibialis (Illiger, 1807) are basically aimed with this study. It is revealed new diagnostic characters for both the aedeagus and spermatheca by investigations on ultrastructural morphologies in SEM.