Pseudocimbex Rohwer 1908
| Autor: | Archibald, S. Bruce, Rasnitsyn, Alexandr P. |
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| Rok vydání: | 2023 |
| Předmět: | |
| DOI: | 10.5281/zenodo.7894923 |
| Popis: | Genus Pseudocimbex Rohwer, 1908 Fig. 28. Pseudocimbex Rohwer, 1908, p. 526. Type species: Pseudocimbex clavatus Rohwer, 1908, by original designation. Diagnosis. Distinct from all other Symphyta by hind wing with M+Cu branching to M, Cu unusually basally; M and Cu at a low angle to M+Cu, almost aligned with it; cell mcu long, narrow, wedge-shaped; cu-a present, vertical. Also distinct from all other Symphyta by comparatively short antenna (about as long as half head width) with subspherical club consisting of several very short segments. Additionally distinct from Cimbicidae by lack of 2r-rs; by its wide costal space; and by presence of vein Sc. Remarks. 2r-rs is not detected in the forewing in some cimbicid specimens described here, presumably by preservation. It is, however, confidently absent in both forewings of Pseudocimbex examined dry and wetted with ethanol (Fig. 28). The very short antenna does occur in various Pergidae, however, there it is combined with an elongate and non-segmented club. In comparison with extant species, a placement of this fossil in either Cimbicidae or Pergidae remains ambiguous. Species included. Type species only. Published as part of 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, pp. 1-38 in Zootaxa 5278 (1) on pages 31-32, DOI: 10.11646/zootaxa.5278.1.1, http://zenodo.org/record/7894826 {"references":["Rohwer, S. A. (1908) On the Tenthredinoidea of the Florissant Shales. Bulletin of the American Museum of Natural History, 24, 521 - 530."]} |
| Databáze: | OpenAIRE |
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