Abstract
Acalanthis quadrisignata Erichson (Coleoptera: Trogossitidae) is an endemic beetle predator of southern Chile and Argentina, inhabiting native forest environments. By conducting a study on the life cycle of the small banded pine weevil, Pissodes castaneus De Geer, using trap logs and sampling forest debries, in a Pinus radiata (D. Don) afforestation in Trevelin (Chubut, Argentina), between September 2014 and September 2015, adults of A. quadrisignata were found inside the pupal chambers of the weevil. This is the first record of a natural enemy of P. castaneus in Patagonia, Argentina. This contribution adds a new habitat record where A. quadrisignata can develop and a new record to its geographical distribution in Argentina.
Highlights
adults of A. quadrisignata were found inside the pupal chambers of the weevil
This is the first record of a natural enemy of P. castaneus
La presente nota constituye el primer registro de enemigos naturales asociados con P. castaneus en la Patagonia argentina y agrega un nuevo hábitat de este predador en una distribución más austral respecto de la citada en la bibliografía, a unos 700 km al sur del registro existente
Summary
Acalanthis quadrisignata Erichson (Coleoptera: Trogossitidae) es un coleóptero predador endémico del sur de Chile y de la Argentina, que habita bosques nativos. Don), en la localidad de Trevelin (Chubut, Argentina), donde se hallaron adultos de A. quadrisignata en el interior de cámaras pupales del gorgojo.
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