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The hybrid Heliconius elevatus is stable and sympatric with its parents: H. pardalinus contributes 99% of the genome, while the 1% originating from H. melpomene contain ecological traits including sex pheromones and mate choice. Nature doi.org/10.1038/s41586…

Mating between different species has often been considered an evolutionary dead end, but a study in longwing butterflies suggests that such hybridization could underlie the origins of a new species go.nature.com/3w6jvjr

doi.org/10.1038/s41467…

A unique cuticular hydrocarbon from the springtail Heteromurus nitidus. This new terpene type, a prenylated geranylated diterpene, highlights differences between Collembola and more advanced insects. See our article in J Nat Prod. doi.org/10.1021/acs.jn…

And he gave a fantastic lecture on new targets and compounds fighting infectious bacteria!

Chemical Ecology lost a pillar, Entomology lost a giant, RES and ESA lost a Fellow and Honorary FRES, we lost a friend and colleague, and the world lost a fantastic human being. Jeremy is irreplaceable—he was one of a kind. Let His Memory Be A Blessing! Requiesce in pace, Jeremy.

Urocanoate serves as starter for the unusal imidacins produced in minute amounts by Stigmatella myxobacteria. The could only be identified by total synthesis. See Org. Lett. doi.org/10.1021/acs.or…

Unique highly hetero-substituted benzenes are defence compounds from tiny springtails. The minute amounts available needed the combination of GC/MS, GC/IR, DFT-calculation, and synthesis to arrive at the structures. Chem. Sci. doi.org/10.1039/D4SC03…

Unprecedented natural products uncovered in springtails: chemistryworld.com/news/unprecede…

The European cooperative program e-niche, sponsored by the EU Cost Action, has released a short video explaining why we are interested in Chemical Ecology and what it actually is. youtu.be/Cv6SIx2b-ms

In memory of the late Paul Weldon: This new but last joint paper describes unusual fatty acids from the scent glands of the endangered Mangshan pit viper. doi.org/10.3762/bjoc.2…

We are happy to announce MACE release 6, our open access database of mass spectra useful for GC/MS. The database contains next to the data in a text file also full libraries in Shimadzu and MSSearch formats, the latter now with structures.

We congratulate Natural Product Reports on 40 years of publication with a highlight on the chemistry of springtails. Please take a look at the fascinating compounds produced by these tiny soil dwellers. doi.org/10.1039/D4NP00…

An editorial on release 6 of MACE just appeared in the latest issue of the Journal of Natural Products pubs.acs.org/doi/full/10.10…

We have discovered a new type of steroids with contracted A-ring, the batrachane skeleton, in gular scent glands of Odontobatrachus frogs. See the identification and synthesis of various batrachodienes, potentially used as signals, in Angew. Chem. doi.org/10.1002/anie.2…

Ten species comprise half of the bacteriology literature, leaving most species unstudied biorxiv.org/content/10.110…

Happy to share our new publication! We found that spiders have super sensitive olfaction! Male spiders use their legs as “nose” to sniff out partners. Olfaction with legs—Spiders use wall-pore sensilla for pheromone detection | PNAS pnas.org/doi/10.1073/pn…

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