A scanning electron microscopy investigation of the antennae of three Peckia Robineau-Desvoidy (Peckia (Euboettcheria) nicasia (Lopes, 1941), Peckia (Sarcodexia) dominicana Lopes, 1982, and Peckia (Peckia) chrysostoma (Wiedemann, 1830)) species of potential forensic relevance, is presented for the first time. The collection of the three species was done using baited traps. The antennae of each species consist of three parts: the scape, the pedicel, and the postpedicel/funiculus, where the arista is located. The distribution and location of sensilla found on the antennae are described. Six types of sensilla were observed. The scape has only chaetic sensilla, the pedicel has chaetic sensilla and setiferous plaques, and the postpedicel bears trichoid, five subtypes of basiconic sensilla, coeloconic sensilla and clavate sensilla. The study also identifies a post-pedicellar button on P. chrysostoma only. The study adds to ultrastructure studies on the antennae of Sarcophagidae, increasing the information available for comparison in phylogeny adaptations and synapomorphy.

中文翻译：

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三种佩克虫（双翅目：石蝇科）触角的超微结构形态：多米尼卡佩克虫、尼西亚佩克虫和金口佩克虫

对三种潜在 Peckia Robineau-Desvoidy (Peckia (Euboettcheria) nicasia (Lopes, 1941)、Peckia (Sarcodexia) dominicana Lopes, 1982 和 Peckia (Peckia) chrysostoma (Wiedemann, 1830)) 物种触角的扫描电子显微镜研究法医相关性，首次提出。这三个物种的收集是使用诱饵陷阱完成的。每个物种的触角由三部分组成：花茎、花梗和后花梗/索，有柱所在。描述了触角上发现的感器的分布和位置。观察到六种类型的感器。花葶仅有毛毛感器，花梗有毛毛感器和硬毛斑，花梗后有毛状感器、基感器、腔感器和棒状感器5种亚型。该研究还仅在 P. chrysostoma 上发现了一个后蒂按钮。该研究增加了对石棺科触角的超微结构研究，增加了可用于系统发育适应和共源性比较的信息。