A new Eocene genus of the subtribe Tylodina (Coleoptera: Curculionidae) and notes concerning local differences of Baltic amber in the Kaliningrad Region
Abstract
. Based on a well-preserved specimen from Eocene Baltic amber, a new weevil - Baltacalles triumurbium gen. et sp. nov. - is described and illustrated. The new fossil genus is similar to the extant Acalles Schoenherr, 1825 but differs from it in the denticulate femora, abdominal ventrites 1-2 combined about 2.8 times as long as ventrites 3-4 combined, distinct scutellum, narrow, subparallel metepisternum, not flattened rostrum, and narrow forehead. This is the first described representative of the Tylodina (Molytinae: Cryptorhynchini) described from Baltic amber. The data on the geographically and stratigraphically distinct local sources of Baltic amber in the Kaliningrad Region are provided; the main sampling localities are listed and photographed. The importance of the possible exact labeling of the material is emphasized.
- Publication:
-
Fossil Record
- Pub Date:
- April 2020
- DOI:
- 10.5194/fr-23-75-2020
- Bibcode:
- 2020FossR..23...75B