Conotrachelus retentus explained

Conotrachelus retentus, the black walnut curculio, is a species of true weevil in the beetle family Curculionidae. It is found in North America. Larvae feed on the developing walnut, while adults feed on foliage. Adult weevils rarely leave the tree they were born on.^[1]

Further reading

• Book: Catalogue of Palaearctic Coleoptera, Volume 7: Curculionoidea I. 2013. Lobl . I.. Smetana . A.. Apollo Books. 978-90-04-26093-1.
• Book: Catalogue of Palaearctic Coleoptera, Volume 8: Curculionoidea II. 2013. Lobl . I.. Smetana . A.. Apollo Books. 978-90-04-25916-4.

Notes and References

1. Ulmer . J. G. . Linit . M. J. . Kearby . W. H. . Flight and Dispersal Behavior of the Black Walnut Curculio, Conotrachelus retentus (Coleoptera: Curculionidae) 1 . Environmental Entomology . 1 December 1983 . 12 . 6 . 1683–1686 . 10.1093/ee/12.6.1683.