Bronzed Tiger Beetle

Fascinating facts about the Bronzed Tiger Beetle

• Bronzed tiger beetles chase prey with such high angular velocity that their visual system begins to lose contrast at about 50 degrees per second, so the image of the target blurs. When this threshold is reached they pause, allowing the stationary background to make the moving prey stand out more clearly. Their pursuit therefore consists of a rapid sprint followed by brief stops, a pattern that lets them reacquire the blurred target before continuing the chase.
• Adult bronzed tiger beetles have been observed feeding on fallen fruits such as sassafras and pokeweed, showing they will eat plant material as well as insects. Experiments found the beetles were equally attracted to the high-fat sassafras fruit and the sugary pokeweed fruit, indicating no strong preference for one over the other.
• The bronzed tiger beetle follows a two-year developmental cycle in which larvae pupate in the autumn and the newly emerged adults overwinter before mating in spring. Adults that emerge from hibernation in April peak in number by early summer, after which many die off, while a second generation of adults appears in late August from pupae that developed the previous summer.
• The bronzed tiger beetle is most abundant where water meets land, colonising the margins of lakes, ponds and streams rather than the open sandy flats favoured by many relatives. It thrives in any fluvial setting, from clay-silt stream beds to sand-substrate streams, and is especially common along the Great Lakes shoreline. This preference for shoreline edges makes it a frequent sight on lake and interdunal pond banks throughout North America.
• The beetle's elytra display a gradual rise in reflectance toward near-infrared wavelengths, which makes the surface appear uniformly flat brown to the naked eye. Microscopic examination, however, reveals a complex pattern of reflected colours, dominated by reds, giving the wings a subtle iridescence. This combination of poor single-wavelength reflectance and hidden red hues distinguishes the species from other cicindelids.

Sources

Every fact above was checked against these pages, and kept only where one of them states it.

• Wikipedia

At a glance

About the Bronzed Tiger Beetle

In the scorching expanse of sun-baked terrain, the Bronzed Tiger Beetle is a fleeting glimpse of iridescent beauty, its metallic sheen glimmering like a shard of splintered sunlight as it darts with swift, predatory intent. With each lightning-fast stride, its slender legs devour the distance, driven by an insatiable hunger for the tiny, unwary creatures that cross its path. As it moves, the beetle's bronzed carapace seems to drink in the light, radiating a warm, burnished glow that is at once both captivating and unsettling.

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