2. Materials and methods
2.1 Occurrence records of B. gargarizans.
The distribution data ofB. gargarizans used in this study were mainly from two sources: i) Data accumulated through years of laboratory fieldwork, 69 records were recorded; ii) and were obtained from the Global Biodiversity Information Facility (GBIF), 287 records were obtained. GBIF is a global scientific organisation that specialises in providing basic data on biodiversity, the data is obtained by searching for the keyword B. gargarizans (visited in June 2020) (Jiang, Zhang, Gao, Cai, & Zhang, 2019). Distance between all species distribution data >1Km by processing in ArcGis10.2 software. Finally, there are 274 pieces of data for this study (Table S1).