### Identification Commonly known as the Gold-green Weevil, *Rhynchites auratus* is a living gemstone. Measuring 5–9 mm (excluding the snout), its body is draped in a brilliant, metallic iridescence that shifts from fiery copper to a deep, lustrous gold-green depending on the light. The most striking feature is its elongated rostrum (snout), which is slightly curved and exceptionally sturdy. For a definitive ID, look at the thorax: males possess a sharp, forward-pointing spine on each side of the prothorax—a feature absent in the similar *Byctiscus betulae*, which also lacks the "hairy" texture of *R. auratus*.
### Habitat & Range This weevil is a classic inhabitant of the Palearctic, ranging from Central and Eastern Europe to the steppes of Central Asia. It is a specialist of the *Prunus* genus; look for it in sun-drenched orchards, wild cherry thickets, and warm forest edges. It favors low-to-mid elevations where its host trees—apricots, cherries, and plums—are abundant.
### Behaviour Active from late April through July, these weevils are diurnal sun-seekers. You will often find them methodically patrolling the surface of developing fruit. They are wary; if they sense a shadow or vibration, they may tuck their legs and drop into the leaf litter—a classic "play dead" defense. During the breeding season, females exhibit a slow, mechanical precision as they prepare "cradles" for their offspring, often spending hours on a single fruit.
### Diet Both a grazer and a precision-borer, the adult *R. auratus* feeds on tender leaf buds and blossoms in early spring. As the season progresses, they transition to the developing fruit. They use their specialized mandibles at the tip of the rostrum to gouge deep, circular pits into the flesh of cherries and apricots to reach the nutrient-rich interior.
### Fascinating Fact The female is a master mechanical engineer. To ensure her larva’s survival, she drills through the soft fruit and bores directly into the hardening pit (endocarp). After laying a single egg inside the stone, she secretes a chemical that prevents the fruit from falling prematurely, ensuring her offspring has a secure, climate-controlled nursery until it is ready to pupate in the soil.