I just discovered your site, When I took this picture last month I thought it was a mother doting over a dead relative. Now I think it’s a robberfly eating it’s victim? This insect wither was there for a couple of days, and didn’t mind my getting to within 2 inches with a macro lens.
The only insects that exhibit anything remotely resembling doting are the social insects in the order Hymenoptera, the Ants, Bees and Wasp, and Termites in the order Isoptera. Robberflies are dispassionate about their meals.