Volume 165 of Zoologica is a comprehensive study of the fairyfly genus Camptoptera Foerster in India and Sri Lanka. The species of Camptoptera are among the smallest known insects. Their taxonomy is mostly based on the mesosomal sculpture, which makes cleared slide mounts necessary for their correct identification. The authors of this volume present a rather simple and better slide mounting technique especially for the smaller chalcids to make the mounted specimens clearer and more visible. Based on a large collection of specimens from all over India and types of previously described taxa, a total of 26 different morphospecies were found to be present in both the countries out of which 11 species are described as new.