#Arachtober 19: one of my favourite finds this year, a hister beetle (family Histeridae) carrying several phoretic (hitchhiking) Uropodina mites attached via "anal pedicels", tough but stretchy stalks formed from special secretions from glands in…well, you can probably guess where. The mites are harmless to the beetle and use it to disperse to new habitats.

More on phoresy in Uropodina: https://doi.org/10.1080/24750263.2023.2288847  

#DailyMitePic #Mitestodon #arachnids #mites #phoresy #AnalPedicel#Acari #Parasitiformes #Mesostigmata #Uropodina

Got a real corker for you all this #MiteMonday! Found this hister beetle (family Histeridae) covered in odd filaments, a few with shiny round brown things attached to the ends.

Now, I know what you're thinking: "It's some kind of fungus, like _Cordyceps_"—you're thinking of _Ophiocordyceps_, it got reclassified—"or _Hesperomyces virescens_ on ladybugs." But Experience Hath Shewn me that it's almost never fungus.

That round, flattened shape had my inner voice going "Uropodina!" And it was right. I had thought these phoretic (hitchhiking) mites always anchored themselves flush to their host with their trademark anal pedicels™, but it turns out some excrete pedicels that are quite long and stalk-like, like this. For more information see this recent #OpenAccess paper, particularly Fig. 1: https://doi.org/10.1080/24750263.2023.2288847  

#iNaturalist observation: https://inaturalist.ca/observations/221274565  

#DailyMitePic #Mitestodon #arachnids #mites #phoresy #AnalPedicel #Acari #Uropodina