Matushkina Nataliia A
Department of Ecology and Zoology, Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, vul. Volodymirs'ka, 64, Kyiv UA-01033, Ukraine.
Micron. 2017 Oct;101:138-150. doi: 10.1016/j.micron.2017.07.001. Epub 2017 Jul 8.
Archaeognatha represent the oldest living lineage of true insects (=Ectognatha), which are remarkable, among others, for plesiomorphic genital morphology and complicated mating behaviour. I used scanning electron microscopy and He-ion microscopy to examine the ovipositor morphology of seven species, in order to describe the cuticle microsculpture. The species studied are characterised by different types of the ovipositor setation pattern, which are considered an important taxonomic feature for Archaeognatha. The common and well discernible elements of ovipositor setation in Archaeognatha are: (1) non-articulated terminal seta, (2) grooved type I basiconic sensillum with apical pore, (3) multiporous type II basiconic sensillum, (4) articulated setae of different length. Coeloconica-like sensilla and campaniform sensilla demonstrate a variety of transient morphology. Results of this study provide morphological evidence of presence of olfactory receptors on the ovipositor in Archaeognatha. The possible functions of the ovipositor setation in Archaeognatha are discussed.
石蛃目代表了现存最古老的真昆虫谱系（=外颚类），它们在诸多方面都很显著，尤其是具有原始的生殖器形态和复杂的交配行为。我使用扫描电子显微镜和氦离子显微镜检查了七个物种的产卵器形态，以便描述其表皮微观结构。所研究的物种具有不同类型的产卵器刚毛排列模式，这被认为是石蛃目的一个重要分类特征。石蛃目产卵器刚毛常见且易于辨别的元素有：（1）无关节的末端刚毛，（2）顶端有孔的槽型I型基部锥形感器，（3）多孔的II型基部锥形感器，（4）不同长度的有关节的刚毛。类腔锥感器和钟形感器呈现出多种过渡形态。本研究结果为石蛃目产卵器上存在嗅觉感受器提供了形态学证据。文中还讨论了石蛃目产卵器刚毛的可能功能。
