Download or read book A revision of the Chinese Trigonalyidae (Hymenoptera, Trigonalyoidea) written by Hua-yan Chen and published by PenSoft Publishers LTD. This book was released on 2014-02-28 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trigonalyidae (Hymenoptera) is a worldwide small family in its own superfamily Trigonalyiodea. There are 93 recognized species in the world, with 16 species in 6 genera are known from China before this study. In this monograph, the Chinese fauna of Trigonalyidae is revised, keyed and fully illustrated for the first time. Fourty species in eight genera are recorded, with twenty species are new for science and two species are new for China. Seven new synonyms are proposed. One genus and six species are recognized as valid. Five new combinations are made. Four lectotypes are designated. The results clarify some taxonomic confusion, richen the species and geographical distributions, and facilitate further taxonomic research of Trigonalyidae.