- Türkiye Teknoloji ve Uygulamalı Bilimler Dergisi
- Cilt: 4 Sayı: 2
- Ultrastructure of aedeagus and spermatheca of Chaetocnema major (Jacquelin du Val) (Chrysomelidae: G...
Ultrastructure of aedeagus and spermatheca of Chaetocnema major (Jacquelin du Val) (Chrysomelidae: Galerucinae: Alticini) by scanning electron microscope
Authors : Havva Ekmekci, Huseyin Özdikmen, Neslihan Bal, Damla Amutkan Mutlu, Zekiye Suludere
Pages : 116-132
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Publication Date : 2023-11-14
Article Type : Research
Abstract :The paper presents unknown ultrastructure of aedeagus and spermatheca of Chaetocnema major (Jacquelin du Val) which is the type species of the subgenus Chaetocnema (Majoroides) Özdikmen and the single species of the subgenus occurring in Türkiye, are studied and figured under both stereo microscope and Scanning Electron Microscope. Aedeagi and spermathecae have so far only been studied in the genus Chaetocnema Stephens based on stereo microscopic studies. Since no ultrastructural studies with SEM have been conducted on male and female genitalia of Chaetocnema species so far, this is the first study for this purpose. Accordingly, this study mainly aims to reveal and obtain new diagnostic characters by ultrastructural and detailed examinations of the aedeagus and spermathecae of Chaetocnema major. As is known, spermathecae of the genus Chaetocnema, like most genera of the tribe Alticini, are partially homogeneous and do not provide good diagnostic characters at the species level. Studies on the aedeagus have revealed that, despite the partial homogeneity of the spermatheca, the structure of the aedeagus shows quite a wide diversity. On the other hand, for the genus Chaetocnema, sperm sheath morphology at the subspecies level appears to be more relevant and useful than external morphological features. While the results from the present study mainly support these views, the female genitalia (spermathecae) was found to be insignificant and non-diagnostic, but important for diagnosis at the aedeagus species level, and further, investigation revealed new diagnostic characters for both Ultrastructural morphologies aedeagus and spermathecae by examining in SEM.Keywords : Anahtar Kelimeler: Aedeagus, Chaetocnema major, spermatheca, SEM, Türkiye, Ultrastructure.