Jakob Jilg Curator

Joined: Feb 20, 2020 Last Active: Jul 23, 2024 iNaturalist

I'll be visiting Costa Rica and Panama in August/September. Would very much appreciate contacts and advice!

Studying "Biodiversity & Ecosystem Health" in Frankfurt am Main.

My main interest are beetles, especially central-european Curculionoidea, "weevils" (or "Rüsselkäfer" in German).
Check out my Instagram focused on Weevils: https://www.instagram.com/weevil.see/
Researchgate: https://www.researchgate.net/profile/Jakob-Jilg/research

Please do not agree with identifications (even if done by an expert) unless you can personally prove that they are correct. Everyone can make mistakes, and there is no need to push an observation to research grade without proper verification. Be aware that many species have lookalikes which aren't represented on iNaturalist yet:
iNaturalist has about 7.000 weevil species, while about 60.000 have been described!

Usually i am careful, but i misidentify from time to time. Please do not agree with my identifications without doing your own research.

I would like to recommend the DJN, a network of young (~12-27) naturalists living in Germany and nearby:
You can take part in our activities (e.g. field trips) without being a member.
Check out our recommendations on field guides and identification keys (in German, focus on Central Europe): https://www.naturbeobachtung.de/naturkunde/bestimmungsliteratur-emfpehlungen

Some helpful resources for the identification of worldwide Curculionoidea:
Most literature is assuming use of a microscope and physical specimen. Identification from images can be problematic, but those resources could help:

BAHR, F.: Catalog of selected weevils of the Palearctic Region. https://curcipal.site.at/

Girón Duque, Jennifer (2020): Status of knowledge of the broad-nosed weevils of Colombia (Coleoptera, Curculionidae, Entiminae). Neotropical Biology and Conservation 15: 583-674. [Tribal diagnoses and pictorial key for the following neotropical Entiminae tribes: Naupactini, Eustylini, Anypotactini, Eudiagogini, Entimini, Premnotrypini, Tanymecini, Lordopini]
There is also a youtube video: https://www.youtube.com/watch?v=GPFXUqRs_Y4

Lanteri, A. A. & M. G. del Río: Naupactini (Coleoptera: Curculionidae) species from Argentina and Uruguay. https://biodar.unlp.edu.ar/naupactini/

Meregalli M. 2017. World Catalogue of the Curculionidae: Lixinae: Cleonini. In: Lyal C.H.C. (Ed.) International Weevil Community Website. Available from: http://weevil.info/content/world-catalogue-curculionidae-lixinae-cleonini.

Key to the weevils of central Europe (in German): https://coleonet.de/coleo/texte/rhynchophora.htm

Checklist, distribution maps and Images of Beetles in Germany: http://www.colkat.de/de/fhl/

Cooperative Catalogue of Palaearctic Coleoptera Curculionoidea (CCPCC): https://weevil.myspecies.info/content/palaearctic-catalogue

Curculionoidea contacts:
https://www.curculionoidea.org/ (worldwide)
https://curci.de/institute/index.php (Western Palearctic, they also have illustrated catalogues)

View All