On the genus Westwood (Hymenoptera, Aphelinidae) from Xishuangbanna Rainforest. Contribution I: Two new species of the group, with an identification key and phylogenetic analysis.

Two new species belonging to the group of , and , are described from Xishuangbanna Rainforest (China, Yunnan). (Huang) and Wang, Huang & Polaszek are recorded. A tentative key to world species of this group is provided.

Host specificity of parasitoids (Encyrtidae) toward armored scale insects (Diaspididae): Untangling the effect of cryptic species on quantitative food webs.

Host specificity of parasitoids may be measured by various specialization indices to assess the variation of interaction strength among species and the structure of the wider interaction network. However, the conclusions from analyses at the species and network levels may differ, which remains poorly explored. In addition, the recovery of cryptic species of hosts and parasitoids with molecular data may affect the structure of inferred interaction links.