Articles | Volume 23, issue 2
Research article
11 Dec 2020
Research article |  | 11 Dec 2020

Cretolixon – a remarkable new genus of rhopalosomatid wasps (Hymenoptera: Vespoidea: Rhopalosomatidae) from chemically tested, mid-Cretaceous Burmese (Kachin) amber supports the monophyly of Rhopalosomatinae

Volker Lohrmann, Qi Zhang, Peter Michalik, Jeremy Blaschke, Patrick Müller, Laurent Jeanneau, and Vincent Perrichot

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Cited articles

Anderson, K. B.: The nature and fate of natural resins in the geosphere – IV. Middle and Upper Cretaceous amber from the Taimyr Peninsula, Siberia – evidence for a new form of polylabdanoid of resinite and revision of the classification of Class I resinites, Org. Geochem., 21, 209–212,, 1994. 
Anderson, K. B.: New evidence concerning the structure, composition, and maturation of class I (Polylabdanoid) resinites, in: Amber, resinite, and fossil resins, edited by: Anderson, K. B. and Crelling, J. C., Am. Chem. Soc. Symposium Series, 617, 105–129, 1995. 
Anderson, K. B.: The nature and fate of natural resins in the geosphere – XII. Investigation of C-ring aromatic diterpenoids in Raritan amber by pyrolysis-GC-matrix isolation FTIR-MS, Geochem. Trans., 7, 2,, 2006. 
Anderson, K. B., Winans, R. E., and Botto, R. E.: The nature and fate of natural resins in the geosphere – II. Identification, classification and nomenclature of resinites, Org. Geochem., 18, 829–841,, 1992. 
Short summary
A new mid-Cretaceous rhopalosomatid wasp, Cretolixon alatum Lohrmann gen. et sp. nov., is described from Burmese (Kachin) amber. The new genus has a unique mixture of characters, some of which are only known from the recent brachypterous genus Olixon and others of which are known only from the recent macropterous genera. Thus, Cretolixon not only provides further evidence for the monophyly of the family but also contributes evidence for the monophyly of the Rhopalosomatinae.