Wrinkled master of wood: Photographing a Heilus weevil in the Ecuadorian Amazon

The genus Heilus belongs to the true weevil family (Curculionidae) and is native to the Neotropical regions of South America. These distinct snout beetles use their elongated rostrum to bore into host plant tissues—a trait that makes species within Heilus difficult to distinguish both from one another and from the closely related genus Heilipus. To lay her eggs, the female uses her rostrum to drill a precise cavity into bark, stems, or wood, depositing a single, small, whitish egg deep inside. She then seals the hole with sap or frass to protect it from desiccation and parasites. Once hatched, the larva spends several months burrowing through subcortical tissues, utilizing specialized gut enzymes to digest the tough plant matter as it progresses through four instar stages. I stumbled upon this intriguing little beetle while exploring a city park in Puyo, a vibrant town on the edge of the Ecuadorian Amazon.

Leave a Comment

Your email address will not be published. Required fields are marked *

Latest posts of related arthropods

Photo taken on 19-09-2026 in Husby, Sweden, with the Nikon Z6-II camera and Nikon Z MC 105mm f2.8 VR S lens and following settings:  f16, 1/125, ISO 200.
A shining spot in the meadow: A metallic...
Photo taken on 12-09-2026 in Barkarby, Sweden, with the Nikon Z6-II camera and Nikon Z MC 105mm f2.8 VR S lens and following settings: f16, 1/30, ISO 200.
Mildew munchers and sesame seeds: Meetin...
Photo taken on 06-09-2026 in Barkarby, Sweden, with the Nikon Z6-II camera and Nikon Z MC 105mm f2.8 VR S lens and following settings: f16, 1/200, ISO 160.
Molten lava drops and sorrel feasts: Mee...
Photo taken on 05-09-2026 in Barkarby, Sweden, with the Nikon Z6-II camera and Nikon Z MC 105mm f2.8 VR S lens and following settings: f16, 1/100, ISO 200.
Sun-loving seed eaters: Meeting the Zabr...
Photo taken on 30-08-2026 in Akalla, Sweden, with the Nikon Z6-II camera and Nikon Z MC 105mm f2.8 VR S lens and following settings: f16, 1/50, ISO 160.
Dimpled armor and swollen bellies: Meeti...
Photo taken on 30-08-2026 in Akalla, Sweden, with the Nikon Z6-II camera and Nikon Z MC 105mm f2.8 VR S lens and following settings: f18, 1/50, ISO 160.
Chasing childhood memories: The challeng...
Scroll to Top

Would you prefer to hide close-up spider photos?
Wolisz ukryć zdjęcia pająków?
¿Ocultar fotos de arañas en primer plano?