New species of Myrmicium Westwood (Psedosiricidae = Myrmiciidae: Hymenoptera, Insecta) from the Early Cretaceous (Aptian) of the Araripe Basin, Brazil

Abstract

This paper records the fi rst occurrence of the genus Myrmicium Westwood, 1854 in the Cretaceous of Gondwana and describes it as a new species Myrmicium araripterum sp. nov, based on the most complete specimen of this genus yet known, which represents the largest specimen of the grade "Symphyta" ever found in the Crato Formation.

<p><strong>A new species of <em>Prosyntexis</em> Sharkey, 1990 (Hymenoptera: Sepulcidae) from the Lower Cretaceous Crato Formation of Brazil confirmed by geometric morphometric analysis</strong></p>

“…The type species P. gouleti Sharkey, 1990 was described from fossil imprints originating from the Crato Formation of Brazil (Darling & Sharkey, 1990). This fossil locality is known to be one of the largest fossil insect Lagerstätten and yields numerous symphytan specimens resulting in the description of numerous species (e.g., Jattiot et al, 2011;Freitas et al, 2020;Jouault et al, 2020). Recently, Prosyntexis legitima Martins-Neto et al 2007 was described from the same outcrop but was later synonymized under P. gouleti (Jattiot et al, 2011).…”