Sperm structure and ultrastructure of Hermetia illucens was determined by light microscopy and transmission electron microscopy. The main sperm components were similar as for other Dipteran subspecies, while the ultrastructure revealed distinguishing features in the zone of overlap and anterior flagellar region. Sperm varied in size indicating sperm polymorphism. The head region is lacking an acrosome. The zone of overlap consisted of uniquely organized centriolar adjunct material, partly forming electron dense areas to finally form an outer ring separating the mitochondrial derivatives from the 9 + 9 + 2 axoneme. Accessory bodies arising from the zone of overlap are flanked by smaller to large mitochondrial derivatives into the anterior flagellum. This study confirms sperm structure diversity between brachyceran subspecies and support its relationship with nematoceran subspecies.

中文翻译：

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昆虫精子的重要性：Hermetia illucens（黑战士蝇）的精子超微结构。

用光学显微镜和透射电子显微镜确定Hermetia illucens的精子结构和超微结构。主要精子成分与其他Dipteran亚种相似，而超微结构显示出重叠区和前鞭毛区的明显特征。精子大小不一，表明其多态性。头部区域缺乏顶体。重叠区由独特组织的中心状辅助材料组成，部分形成电子致密区域，最终形成将线粒体衍生物与9 + 9 + 2轴突分离的外环。由重叠区域产生的附件体的侧面由较小到较大的线粒体衍生物进入前鞭毛。