are secreted by queen brood at half the rate found for worker brood. Methyl oleate, repellent to the mite, is secreted in large amounts compared with the attractive esters. Quantitative and qualitative differences in the esters present on worker, drone, and queen broods could partially explain the weaker attraction exerted by queen brood on the mite, compared with the attractive effects of work...

The recent collection of a female of Gryphopsylla jacobsoni segregata Beaucournu & Sountsov, 1999 from northern Borneo allowed us to better clarify the taxonomic status of this flea and confirm that G. jacobsoni and G. segregata are distinct species. We describe the female of G. segregata and revised the identification key of the genus.