See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/226766510 Comparison between primary and secondary sex ratios in parasitoid wasps using a method for observing chromosomes Article in Entomologia Experimentalis et Applicata · January 1997 DOI: 10.1023/A:1002931020385 CITATIONS 24 READS 21 2 authors, including: Takatoshi Ueno Kyushu University 73 PUBLICATIONS 618 CITATIONS SEE PROFILE All content following this page was uploaded by Takatoshi Ueno on 06 April 2015. The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately.