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Type: Article
Published: 2023-08-28
Page range: 424–434
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Blurring the limits of anaxyelid subfamilies: a new genus and species (Hymenoptera: Anaxyelidae) from the Albian of the Republic of Korea

Univ. Rennes, CNRS, Géosciences Rennes, UMR 6118, F-35000 Rennes, France
Naturhistorisches Museum Basel, Augustinergasse 2, 4051 Basel, Switzerland; Borissiak Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya ul. 123, 117647 Moscow, Russia; Cherepovets State University, Lunacharskogo prosp. 5, 162600 Cherepovets, Russia
Borissiak Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya ul. 123, 117647 Moscow, Russia; Natural History Museum, London SW7 5BD, UK
Gongju National University of Education, Gongju, Chungcheongnam-do 32553, Republic of Korea
Gongju National University of Education, Gongju, Chungcheongnam-do 32553, Republic of Korea
Univ. Rennes, CNRS, Géosciences Rennes, UMR 6118, F-35000 Rennes, France; Institut de Systématique, Évolution, Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, CP50, 57 rue Cuvier, F-75005 Paris, France; CNRS, UMR 5554 Institut des Sciences de l’Évolution de Montpellier (Université de Montpellier), Place Eugène Bataillon, F-34095 Montpellier, France
Hymenoptera Anaxyelidae Jinju Formation Cretaceous Korean Peninsula new genus new species


Hanguksyntexis haeretica gen. et sp. nov. is the first Anaxyelidae described and illustrated from the early Albian Jinju Formation (Republic of Korea). This new taxon is attributed to the subfamily Syntexinae because of its forewing venation (i.e., 1-Rs+M forking at 1m-cu level), but differs from all other syntexines genera because of its peculiar shape and length of 2r cell (ca. twice as long as wide, not distinctly widened apically nor basally) and by its vein 6-Rs strongly curved distally towards wing margin. The discovery of this new genus challenges the clear differentiation between Anaxyelinae and Syntexinae, prompting a thorough discussion on the diagnostic value of the wing venation characters that were previously used to distinguish the two subfamilies. Consequently, the genus Cretosyntexis Rasnitsyn & Martínez-Delclòs, 2000 is transferred to Anaxyelinae.


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