Checklist and contribution to the knowledge of the odonatofauna of Paraíba state, Brazil

Abstract: We present the first listing of odonatan species (Insecta: Odonata) that occur in the state of Paraíba, Brazil. There are 49 species and 29 genera registered, making Paraíba the third in number of species among the Brazilian states of northeastern region. The families with the largest number of species were Libellulidae, with 31 species and 15 genera, followed by Coenagrionidae with 11 species and 7 genera. Interior regions of the state are under-sampled, which should still lead to an underestimated number of species. In addition, we present taxonomic notes of two species collected during our expeditions: males of Progomphus dorsopallidus Byers, 1934 and females of Macrothemis griseofrons Calvert, 1909. Here, we detail important characteristics and present figures to aid their morphological identifications.摘要：本研究首次整理了巴西帕拉伊巴州（Paraíba）分布的昆虫纲（Insecta）蜻蜓目（Odonata）物种名录。本次共记录29属49种蜻蜓，使帕拉伊巴州在巴西东北部各州的物种丰富度排名第三。物种丰富度最高的类群为蜻科（Libellulidae），包含15属31种；其次为蟌科（Coenagrionidae），含7属11种。该州内陆地区采样覆盖不足，实际物种数量或被低估。此外，本研究还补充了科考采集到的两个物种的分类学备注：1934年Byers描述的Progomphus dorsopallidus的雄性个体，以及1909年Calvert描述的Macrothemis griseofrons的雌性个体。本文详细阐述了这两个物种的关键形态特征，并配有辅助形态鉴定的插图。