Revision of the Neotropical subgenera Coelioxys (Platycoelioxys) Mitchell and C. (Rhinocoelioxys) Mitchell (Hymenoptera; Megachilidae) with the description of one new species
Bibliographic record
Abstract
Two Neotropical subgenera of Coelioxys Latreille are revised. The monotypic C. (Platycoelioxys) Mitchell and C. (Rhinocoelioxys) Mitchell has seven valid species; six of them (C. agilis Smith, C. barbata Schwarz & Michener, C. clypearis Friese, C. nasidens Friese, C. paraguayensis Schrottky and C. zapoteca Cresson) previously described, and one, C. platygnatha Rocha-Filho & Packer n. sp. is new from Amazonas State, Brazil. Coelioxys nasidens, previously considered a junior synonym of C. clypeata Smith, is resurrected. Coelioxys crassiceps Friese and C. excisa Friese are synonymized under C. agilis, and C. rostrata Friese is synonymized under C. paraguayensis. Nine names (C. clypeata, C. leucochrysea Cockerell, C. angustivalva Holmberg, C. doelloi Holmberg, C. blabera Holmberg, C. mesopotamica Holmberg, C. bilobata Friese, C. bilobata schenki Friese and C. bullaticeps Friese) are synonymized with C. zapoteca. In the latter species the shape of the apical margin of the clypeus of the female varies widely and, though intermediates occur among all forms, the DNA barcode sequences for the different forms are very similar. One species formerly considered as incertae sedis, C. clypearis, and one belonging to the subgenus C. (Cyrtocoelioxys) Mitchell, C. barbata, are both assigned to the subgenus C. (Rhinocoelioxys). Keys for both sexes of C. (Rhinocoelioxys), distribution maps, host and floral records, redescriptions of species and the description of a new species are provided. In the subgenus C. (Platycoelioxys), only one species, C. alatiformis Friese, is recognized with two junior synonyms: C. crassiceps Friese syn. nov. and C. spatuliventer Cockerell.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".