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In recent years, coral reefs have been seriously affected by human and natural factors, some of influences are even irreversible. Among them, the impacts of climate change have gradually deepened and attracted people's attention. Other papers which tell about the familiar topic failed to focus on discussing specific questions in certain area of coral reefs. The paper mainly analyzes the interspecific relationship change when facing the climate change of coral reef ecology in the South China Sea. Content of this paper first discusses the severe condition of climate change, like the instability of global climate system. Also, the situation about South China Sea and the effects of climate change are discussed and analyzed. Then, the interspecific relationships of predation, competition, parasitism, and mutualism were discussed. Further, discussed the increase of benthic algae and symbiotic organism reactions. The response from higher trophic level to low level and some researches are determined, too. On this basis, consider the interspecific relationships in the same trophic level. In the future, higher trophic level changes should be determined. Also, people should focus on the change after coral reefs recovering from albinism, about whether their population would change even extinct with the effect of climate change on coral reefs and reefs make a response to it through trophic level relationship change. This paper can provide some corresponding research ideas for more future researches.

Two species of the genus Hyptiotes Walckenaer 1837 are described from Guangxi Zhuang Autonomous Region, China, including a new species, Hyptiotes nonggang n. sp. (♂♀), and a known species, Hyptiotes paradoxus (C. L. Koch, 1834) (♂♀) which is the type species. Detailed descriptions and illustrations of the two species are provide, and a map of collecting localities of them in China is also provided.