Abstract
Phasmatodea (Arthropoda, Insecta) comprises phytophagous insects, popularly known as stick bugs because most of them resemble dry branches. Currently, more than 3000 species are known, the majority of which can be found in tropical regions of the world. In Brazil, it is estimated that there are approximately 200 species, but these numbers may not truly reflect the group's richness. A high degree of intraspecific polymorphism, a low number of specimens sampled, a shortage of specialized literature, and having only a small number of experts have amplified the difficulties in studying this order. Therefore, this study aims to present a historical survey of the Phasmatodea studies that have been conducted in Brazil thus far, indicating gaps in knowledge and discussing perspectives to expand understanding within this group. Furthermore, to the best our knowledge, the molecular characterization of the cytochrome oxidase subunit I gene of mitochondrial DNA of two species of phasmids found in Brazil, Cladomorphus phyllinus Gray, 1835, and Pseudophasma missionum Piza, 1981, is presented for the first time. In addition, this study records for the first time the occurrence of P. missionum in Brazilian territory.
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