Objective To investigate the effect of temperature trend on the reproduction of Aedes albopictus under natural conditions, and to provide data support for predicting population dynamics and mosquito control in Shenzhen, China. Methods Mosquito ovitraps were placed in at least one place each of residential areas, hospitals, and parks in Shenzhen monthly from 2016 to 2018, and the influence of temperature trend on the mosquito ovitrap index (MOI) and spawning rate (SR) of Ae. albopictus under natural conditions was analyzed with recovered ovitraps. A one-sample t-test was used for comparison of samples in one group. Results The MOI in Shenzhen exceeded the dengue fever control threshold (MOI >5) at 25℃ to 30℃, and it peaked (9.41±7.47) at 25℃ to 26℃. The density of Ae. albopictus increased rapidly from January to May, resulting in the highest value between May and June, and then gradually decreased. The SR was maintained at a relatively high level between February and July along with the rising temperature, and the average SR increased from (73.61±41.32)% to (100.00±0.00)%; then the SR decreased gradually along with the declining temperature from August to February next year, and the average SR decreased from (62.55±21.64)% to (18.32±34.63)%. Conclusion When the density of Ae. albopictus peaks at 25℃ to 26℃ from May to June, the SR of Ae. albopictus is directly related to the changing trend of temperature in Shenzhen, China. At the same temperature, the SR of Ae. albopictus in the rising trend of temperature is higher than that in the declining trend.

【Abstract】 Objective To study medical mollusc in Beijing region.  Methods All medical molluscan specimens were collated and analyzed, which were collected from Beijing and deposited in the Zoological Museum, Institute of Zoology, Chinese Academy of Sciences, based on field work, literature, museum records and expert assistant.  Results A total of 29 important species of molluscs related to 48 kinds of parasites in Beijing region had been identified, which belonged to 10 families, 2 Class.  Conclusion Molluscs played a key role in transmitting parasitic diseases as intermediate host. There were no reports on medical molluscan diversity, distribution and its parasites in Beijing region for more than thirty years. This study showed that so many medical mollusc could survive in Beijing region and it should be paid more attention for department of public health management.