Emmanuel F.A. Toussaint

@toussaintlab.bsky.social

Researcher / Curator of Entomology @mhngeneve.bsky.social Phylogeography, Phylogenomics and Macroevolution of Beetles www.toussaintlab.com

Just thinking about the Amyciaea crab spider. I don't generally think of spiders as evil, but this thing is an empathy predator. It lurks alongside weaver ant colonies, pretending to be an injured ant, and when gullible ants go to help out what they think is their sister, they get eaten.

Macro photo of a green spider with orange legs on the underside of a twig, a dead ant the same color in its mouth.Macro photo of the back end of a spider that is mimicking the front end of an ant.

A cute little reticulated beetle, Tenomerga cinerea. This odd lineage last shared an ancestor with more typical beetles like ladybirds and scarabs nearly 300 million years ago.

Macro photo in dorsal view of an elongate tan beetle with large antennae and dark brown markings on its elytra, standing on a pure white substrate.

Another chapter of my thesis is out! We used genomic data generated from across the range of the Western Balkan highland endemic beetle Calosoma pentheri support the recognition of two distinct species. Biogeography, divergence estimates, phylo & population genetics, etc.

Screen shot of the article PDF: "Climatic swings triggered incipient postglacial speciation of flightless Calosoma beetles in Western Balkan sky islands" with author contributions.