Apparently it was world robber fly day yesterday. I’ve never heard of it before, but have a belated Machimus of some kind.

This was taken 3 years ago with an iphone se2, and came out better than any of my other phone insect photos before or since.

#robberfly #insect #macro

Throw back to my first time finding a robber fly, it was only last year. I recognised it because I’d seen people post them on here and it was very exciting  

#WorldRobberFlyDay #RobberFly

April 30th is apparently World Robber Fly Day. These are Promachus princeps and the nuptial gift is a longhorned beetle. Madras, Oregon, USA. #asilidae #robberfly #fly #diptera #entomology #nature #beetle #insects
An Asilidae aka "Robber Fly" enjoys a meal of a fly in the Panamint Valley, California. April 2021 Note the proboscis stabbed into the back of the fly. It injects a neurotoxin and digestive enzymes and slups up its meal. #panamint #robberfly #nature #brutal #fly #bugs #desert #macro #cvvhrn #r2508

Some #insects support passive #breathing via tracheae through #active #respiratorymovements, nsmed #convectiveventilation. Muscle contractions cause motions that e.g. dilate the #spiracles, allowing more efficient #gasexchange. The same time, the process also serves #thermoregulation. My example, the #robberfly #Tolmerus #cingulatus, demonstrates this #behavior.

Please watch my YouTube video; my channel needs more views.
https://youtu.be/zSOdFZF18yk?si=J67MJAevRUq-mP6i

©#StefanFWirth #Berlin2025

#Photos
© S.F.Wirth

Zandroofvlieg - Philonicus albiceps

#nature #darktable #nederland #robberfly #roofvlieg #fly #vlieg