Chaeteessidae, Handlirsch, 1926

Schubnel, Thomas & Nel, Andre, 2019, New Paleogene mantises from the Oise amber and their evolutionary importance, Acta Palaeontologica Polonica 64 (4), pp. 779-786 : 780

Chaeteessidae indet.

Figs. 1 , 2 , 4A .

Material.—MNHN-F.A71139, PA 3309, head and fore legs; MNHN-F.A71142, PA 2420, fore legs. From Le Quesnoy, Chevrière, region of Creil, Oise department, France; lowermost Eocene, Sparnacian, level MP7 of the mammal fauna of Dormaal.

Description.—MNHN-F.A71139: head 1.9 mm long, 2.3 mm wide, triangular, 1.2 times as wide as long; compound eyes globular; antennae filiform, long but incomplete; ocelli not visible; fore coxae without visible spines; fore femora 2.8 mm long, of semicircular section, without distinct carina and probably with six posteroventral spines; fore tibia 1.8 mm long, slightly curved toward posteroventral edge; 14 anteroventral spines, with eighth spine larger than ninth, apical spur not clearly define ( Fig. 1 ). MNHN-F.A71142 is similar to MNHN-F.A71139 ( Fig. 2 ).

Figures

Fig. 1. Chaeteessidae gen. at sp. incertae sedis, MNHN-F.A71139, Le Quesnoy, France, Eocene. General habitus (A1), right fore tibia (A2), outer side of left fore femur (A3), inner side of left fore femur (A4), head (A5). Scale bars 2 mm.

Fig. 2. Fore legs of Chaeteessidae gen. at sp. incertae sedis, MNHN-F. A71142, Le Quesnoy, France, Eocene.

Fig. 4. Fore legs of chaeteessid mantodeans. A. Chaeteessidae gen. at sp. incertae sedis, MNHN-F.A71139, Le Quesnoy, France, Eocene; inner (A1) and outer (A2) side of left fore femur. B. Fore legs of Chaeteessa valida (Perty, 1833), Recent, MNHN collection. C. Habitus of Arvernineura insignis Piton, 1940, MNT NEL1656, Menat, France, Paleocene; photograph with low-angle light (C1), in alcohol (C2). Arrows correspond to tibial major median spines. Scale bars 2 mm.