A new fossil genus near Meghyperus Loew from Baltic amber (Diptera: Atelestidae)
Bibliographic record
Abstract
The Atelestidae are a small family of empidoid flies (Diptera: Empidoidea), including 15 recent species in five genera (Sinclair & Grimaldi, 2020). In contrast, they have a rather high fossil diversity (Table 1), with 28 species in nine genera. These fossil taxa are almost entirely from Cretaceous ambers (Canadian, Lebanese, Myanmar, New Jersey, Spanish), and prior to this study only a single described species from Baltic amber (Nemedina eocenica Sinclair & Arnaud, 2001) was known. The extant species are widespread, with two Afrotropical, three Neotropical, two Nearctic and eight Palaearctic species. This family is recognized within the Empidoidea on the basis of their well-developed anal lobe of the wing, distinct alula, R4+5 unforked, M1+2 usually unforked or forked beyond cell dm, cell cua long, at least as long as cell bm, female tergite 10 absent, male terminalia symmetrical and unrotated, with elongate gonocoxal apodemes and shortened hypandrium (Chvála, 1983; Grimaldi & Cumming, 1999; Sinclair & Cumming, 2006).
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".