Belostoma flumineum By Matt Young August 2, 2021 11:00 MST Photograph by Al Denelsbeck. Photography contest, Runner-Up. Belostoma flumineum – Giant water bug – and Notonecta kirbyi – backswimmer prey: The photographer writes, "I'm not absolutely sure of the prey species, but we'll pretend that I'm confident/competent. I had collected some aquatic arthropods from a glorified ditch for some detailed aquarium shots, when the water bug cooperatively snagged the backswimmer for a meal – not exactly rare, because they're notoriously rapacious. The macro aquarium allowed both good lighting and a decent angle to fit within the short depth of field, and I cannot recommend one enough. The $5 'breeder' aquarium had one plastic side removed and replaced with a pane of glass from a photo frame for better clarity, allowing for desktop aquatic photos."