The previously recognised closely related species Graphium (Pazala) mandarinus (Oberthür, 1879) and G. (P.) sichuanica (Koiwaya, 1993) are shown to comprise seven species as a result of both molecular and morphological analysis. Molecular dating analysis is also performed on the mandarinus group in order to investigate the divergence time of the taxa. Two taxa, G. (P.) garhwalica (Katayama, 1988) stat. nov. and G. (P.) paphus (de Nicéville, 1886) stat. nov., are raised from subspecific to specific status; G. (P.) hoeneanus Cotton & Hu nom. nov., stat. rev. is separated from sichuanica at species level; and two previously unrecognised new species, G. (P.) daiyuanae Hu, Zhang & Cotton sp. nov. and G. (P.) confucius Hu, Duan & Cotton sp. nov. are described from Vietnam and China respectively, the latter being sympatric with nominate G. (P.) mandarinus. The identity of the lectotype of G. (P.) mandarinus is confirmed and a lectotype is designated for the taxon Papilio Glycerion Gray, 1831. A new subspecies of G. (P.) mandarinus is described from western Yunnan and northern Myanmar, G. (P.) mandarinus stilwelli Cotton & Hu ssp. nov.

Pollinating butterflies are an important asset to agriculture, which still depends on wild resources. Yunnan Province in Southwest China is a region with typical montane agriculture, but this resource is poorly investigated. From literature reference and specimen examination, the present study identified 554 species of pollinating butterflies (50.8% of the total butterflies) from Yunnan, with family Nymphalidae possessing the least number of pollinators (80 species, 16.0%), while the remaining four families are pollinator-rich (>73%). Tropical lowlands and mountain-valley areas possess higher species richness than those with plain terrains. The species richness of pollinating butterflies in Yunnan does not simply decline with the increase of latitude, nor is significantly different between West and East Yunnan. Zonation of pollinating butterflies using the parsimony analysis of endemicity (PAE) identified nine distribution zones and ten subzones. Most areas of endemism (AOE) are found in lowlands or mountain-valley areas, complexity of terrains, climates, and vegetation types are believed to be the main causes of such endemicity. The potential pollinating service of these butterflies could be great to montane agriculture with expanding areas of cash crops and fruit horticulture. Conservation strategies for pollinating butterflies may consist of preserving habitats and establishing butterfly-friendly agriculture based on local traditions.

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Three Graphium species belonging to two species groups of the subgenus Pazala, the alebion and tamerlanus groups, were examined in molecular and morphological studies, and their female genitalia are reported for the first time. Their relationship with other species groups within the subgenus is assessed and their divergence times are estimated. We find that G. (P.) alebion is the first lineage to diverge within Pazala in the early Miocene (20 Ma) and that G. (P.) tamerlanus and G. (P.) parus are sister species and diverged from each other in the late Miocene (7 Ma). A revision of the four recognised taxa belonging to three species is presented, and historical misidentification of these taxa and their geographic ranges are explained.

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