喙凤蝶属Teinopalpus仅金斑喙凤蝶、金带喙凤蝶两姊妹种，沿武夷山-南岭-喜马拉雅、中南半岛发生，同域出现但分布各异，寄主同是木兰科但种类不同，据生态位理论，推测其生态位可能既相似又分化。本次拟利用多年采集的蝴蝶、寄主发生点数据，精选几种物种分布模型(SDMs)建立蝴蝶环境生态位模型，预测两者潜在分布与热点发生区；基于所获模型，用生态位分化、重叠、相等测量最新方法，比较两姊妹种间及亚种间生态位重叠、分化特征，掌握喙凤蝶生态位保守或进化状况，部分回答其仍具争议的种或亚种间关系。另用土地利用、未来情景SRES A2和B2数据建模型，预测喙凤蝶在人类干扰、气候变暖下的潜在分布与变化，了解关键或威胁因子及潜在适宜生境范围，预期未来发生格局，为珍稀喙凤蝶保护及未来措施作重要参考。而喙凤蝶是其发生区保护地位最高蝶种，且区内蝶类多样性奇高却研究很少，本次对该区蝶类未来动态及多样性保护具有启示作用。

Only two sister species are in Teinopalpus, T.aureus and T.imperialis, distributing along Wuyi Mountain, Nanling Mountain, Himalaya peripheral and Indochina. Sympatric occurrence were observed in two sisters but with different distributional range geographically, and they also feed the same Magnoliaceae plants but again on different species. Basing on the theory of niche, we inferred that they could show similar niche but with some differentiation. This study will use species distribution modelling (SDMs) to establish the prediction models basing on the presence data of butterfly, after evaluating several model ways. With good models we predict the potential distribution and hotspot areas in the two sister butterflies. Then we take use of SDMs to calculate niche overlap and differentiation index with the operation of new methods. We then infer the evolution and conservatism of Teinopalpus species and subspecies. Furthermore, we use land use and SRES A2 and B2 to establish models, and predict the potential distribution and changes in two sisters, as well as investigating the key factors or threats, the suitable habitat demanded by the butterflies. Results could be a key reference for the protection of the two rare butterflies. Also, considering that Teinopalpus spp. are most important butterflies of protection in study region, where, so far, still little is known about the distribution and dynamic about butterflies, which actually show a remarkable high diversity. So, results could also make some critical implications for the future protection of butterfly of this region.