Previously unpublished Odonata records from Sarawak, Borneo, part V: Odonata from the southwest of Sarawak, including the first records from the Bungo Range National Park

Records of Odonata from three administrative divisions in the southwest of Sarawak (Kuching, Samarahan and Serian), mostly made during field work funded by the International Dragonfly Fund and the Sarawak Museum Campus Project, are presented. In the first part of the paper 176 species are listed, of which Burmagomphus plagiatus Lieftinck, 1964 was recorded from Sarawak for the first time during this study and one or possibly two unnamed Onychogomphus sensu latu species were recorded from Borneo for the first time (one from a single female, the other from an exuvia). Gynacantha maclachlani Krüger, 1899 is also recorded from Sarawak for the first time. The first records of Odonata from the Bungo Range National Park are included here. Other notable records include Drepanosticta drusilla Lieftinck, 1934, Drepanosticta kosterini Dow, 2017, Podolestes chrysopus Selys, 1889, Libellago stigmatizans (Selys, 1859), Rhinocypha aurofulgens Laidlaw, 1931 (recorded from southwest Sarawak for the first time), Bornargiolestes reelsi Dow, 2014, Amphicnemis madelenae Laidlaw, 1913, Amphicnemis rigiketit Dow, 2019, Burmagomphus insularis Laidlaw, 1914, Gomphidia abbotti Williamson, 1907, Macrogomphus albardae Selys, 1878, Macromia arachnomima Lieftinck, 1953, Macromia callisto Laidlaw, 1922 and Nannophyopsis chalcosoma Lieftinck, 1935. The importance of kampung (village) lands, still mostly farmed by traditional methods and presenting a mosaic of different habitat types in close proximity to each other, for conservation is discussed briefly, taking the Gomphidae as an example. In the second part of the paper some taxonomic issues are discussed and some molecular data is included. Bornean Libellago stigmatizans are shown to be indistinguishable from L. stictica (Selys, 1859) using COI based DNA barcoding, but the two are clearly separated in ITS. Gomphidia caesarea Lieftinck, 1929 is considered to be a junior synonym of Gomphidia abbotti, variation in G. abbotti is discussed and DNA barcoding data for G. abbotti and G. maclachlani Selys, 1873 is presented. The status of Macrogomphus abnormis Selys, 1884 is discussed and some COI data is presented to support the view that two species have been treated as M. parallelogramma in Borneo until now (an issue that will be dealt with in much more detail in a future paper). One of the Onychogomphus sensu latu species is discussed and illustrated from a female and illustrations of the female of “Phaenandrogomphus” safei Dow & Luke, 2015 are presented for the first time. A detailed list of previously unpublished specimens from the locations covered is given in an appendix and details of specimens used in the molecular analyses are given in a second appendix.