The mean density of Phlebotomus chinensis was 6.3 sandflies per trap per night in Yangquan City from during the period from May to September, 2020, with the highest density observed in Jiaoqu District (12.6 sandflies per trap per night) and the lowest in Yuxian County (1.1 sandflies per trap per night), and there was a region⁃specific mean density of Ph. chinensis in Yangquan City (H = 17.282, P < 0.01).
Source: wiktionary