Bibrax Fletcher, 1927
publication ID |
https://doi.org/10.3897/zookeys.1250.156763 |
publication LSID |
lsid:zoobank.org:pub:C677FE28-AB0C-467F-86BA-459EF275E79E |
DOI |
https://doi.org/10.5281/zenodo.16949994 |
persistent identifier |
https://treatment.plazi.org/id/B4E0DBE1-8327-5AF6-9739-B85FDCAC0924 |
treatment provided by |
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scientific name |
Bibrax Fletcher, 1927 |
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Bibrax Fletcher, 1927 View in CoL
Type species.
Bibrax bradleyi Fletcher, 1927 , by original designation. Type locality. Barro Colorado Island, Panama.
Diagnosis.
Among Metopiasini , Bibrax has been diagnosed (e. g., by Asenjo et al. 2024; Mario Chaul and Lopes-Andrade 2024; Chandler, unpublished) by having a scape as long as the funicular antennomeres combined (unlike Rhinoscepsis ), the abdomen laterally margined, with distinct paratergites (unlike Metopioxys and Metopiosoma ), the second antennomere or pedicel (at least up until now) at least 2 × as long as the third, the lack of acute pronotal and vertexal tubercles (seen in Metopiellus ), having distinct lateral and / or median longitudinal pronotal sulci, having abdominal sternite III (first visible) longer than the metacoxae, and having the anterolateral corners of the gula acutely projecting (the size of which are, in light of new species, quite varied).
Secondary sexual characters, when present, frequently involve modifications of the male abdominal sternites, the male tibial apices, male antennal pedicel, and male trochanters. In some species the sexes are dimorphic in eye size, although in several species described below reduced eyes are present in both sexes. The male genitalia, while highly varied in particulars, are consistent in having a large basal bulb that is articulated with an elongate distal tegmen. Parameres are absent. Asenjo et al (2024) demonstrated the basal articulation of the basal bulb with an “ apodemal plate ” on the inner surface of sternite VIII, and all of the species have a variously developed process (sometimes paired) on the basal bulb for this purpose. The tegmen can be simple or quite elaborate, sometimes subdivided, and is highly diagnostic of each species.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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SubFamily |
Pselaphinae |