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The cold wave weather process in Jiujiang in the early spring of February 2020 was analyzed. The results show that the establishment of blocking high near Lake Baikal and the rapid southward of cold air after accumulation resulted in the cold wave weather accompanied by strong cooling, hale and rain (snow) weather in Jiujiang. Before the Cold wave broke out, the ground warmed up significantly, which was also one of thermal conditions for this cold wave weather. Water vapor conditions were abundant at middle and low levels; at 850 hPa, temperature dropped by 12 -- 14 °C during February 14-15, and -4 °C isotherm appeared in the southern part of central Jiangxi, which is a favorable condition for rain (snow) in most areas of Jiujiang. [ABSTRACT FROM AUTHOR]

The male of Lobrathium rotundiceps (Koch, 1939) from Zhejiang and L. luoxiaoense sp. n. from Jiangxi are described and illustrated. [ABSTRACT FROM AUTHOR]