Cenocimbex Nel, 2004

Archibald, S. Bruce & Rasnitsyn, Alexandr P., 2023, Cimbicidae (Hymenoptera, ‘ Symphyta’) in the Paleogene: revision, the new subfamily Cenocimbicinae, and new taxa from the Eocene Okanagan Highlands, Zootaxa 5278 (1), pp. 1-38 : 4-5

Genus Cenocimbex Nel, 2004

Figs. 2 , 3E–F .

Type species C. menatensis Nel, 2004 .

Emended diagnosis. Separated from all other Cenocimbicinae by R before base of pterostigma with dark triangular sclerite reaching 1-Rs+M near 1m-cu [vs. sclerotization not apparent, either absent or pale, small]; by wing broad, estimated length/width 2.5 [all others ca. 2.8 or more]; by cell 3rm short (2r-m to 3r-m length ≤ 3r-m [vs. distinctly longer]); from Leptostigma n. gen. also by pterostigma broad, maximum height distinctly more than height of C to R basal to pterostigma [ Leptostigma n. gen.: similar in height to C to R basal to pterostigma]. Hind wing with r-m, m-cu and cu-a only moderately distant from each other (for about length of m-cu, so cu-a at about midlength cell mcu) [in other genera usually well before mid-length].

Remarks. Sclerotisation on R near the pterostigma, even though of much lesser size, is clearly seen in an extant cimbicine, see Vilhelmsen et al. 2018, Fig. 2B ).

Locality and age. Menat Formation; Puy-de-Dôme, France; Selandian.

Species included. Type species only.

Figures

FIGURE 2. Cenocimbex menatensis Nel, holotype MNHN-LP-R.11195: A, extract from a reflectance transformation imaging (RTI) file (Cultural Heritage Imaging 2012); B, drawing of left forewing; C, drawing of right forewing preserved portion; D, left hind wing. Scale bars 5 mm.

FIGURE 3. Heads of Cenocimbicinae: A, Leptostigma brevilatum GSC 142839, drawing; B, L. brevilatum GSC 142839, photograph; C, Leptostigma longipallidum GSC 142841, drawing; D, L. longipallidum GSC 142841, photograph; E, Cenocimbex menatensis MNHN-LP-R.11195, drawing; F, C. menatensis MNHN-LP-R.11195, photograph; G, Leptostigma longipallidum F-771, drawing; H, L. longipallidum F-771, photograph; I, Leptostigma longitenebricum F-1565, drawing; J, L. longitenebricum F-1565, photograph; K, Leptostigma longiclava RBCM.EH2017.050.4085.0001, drawing; L, L. longiclava RBCM.EH2017.050.4085.0001, photograph. Scale bars 2 mm.