Observations on Paragus quadrifasciatus [Het.: syrphidae] in Tonghua County - Gao, Junfeng (My University, 2017)
Originating text in Chinese.
Citation: Gao, Junfeng. (1991). Observations on Paragus quadrifasciatus [Het.: syrphidae] in Tonghua County. Chinese Journal of Biological Control, 7(2), 95-95.