title: Description of a new species of the genus Sarasaeschna Karube & Yeh, with a key to the species of Taiwan (Odonata: Anisoptera: Aeshnidae).
abstract: Sarasaeschna chiangchinlii sp. nov. collected from Daxi, Taoyuan County in northern Taiwan is described and diagnosed. Judging from male penile structure, this species is considered to belong to the pryeri-group of its genus. It is easily distinguished from all known congeners in having peculiar sickle-shaped cerci in male. The habitats of S. chiangchinlii are mainly shaded brooks in lowland areas, which are exceptional for its Taiwanese relatives. Distributional maps and a key are also provided for the four species of Taiwanese Sarasaeschna.
authors.affiliation: Conservation and Research Center, Taipei Zoo, Taipei, Taiwan.; Email: dwx24@zoo.gov.tw.
authors.forename: Szu-Lung
authors.initials: SL
authors.lastname: Chen
authors.affiliation: Division of Forest Protection, Taiwan Forestry Research Institute (TFRI), Taipei, Taiwan.; Email: wcyeh@tfri.gov.tw.
authors.forename: Wen-Chi
authors.initials: WC
authors.lastname: Yeh
mesh_terms: D000825:Animal Structures / Q000033:anatomy & histology; D000818:Animals; D017753:Ecosystem; D005260:Female; D008297:Male; D063191:Odonata / Q000033:anatomy & histology / Q000145:classification*; D013624:Taiwan