The Neotropical genera Macrostomus Wiedemann and Porphyrochroa Melander (Diptera, Empididae, Empidinae)
Bibliographic record
Abstract
Macrostomus ferrugineus (Fabricius, 1805), the type-species of Macrostomus Wiedemann, 1817 and Porphyrochroa palliata (Coquillett, 1902), the type-species of Porphyrochroa Melander, 1927 are redescribed and figured from the types. Both Neotropical genera are considered sistergroups and their synapomorphies are presented. The species belonging to both genera, and those Neotropical species remaining in the heterogeneous group Rhamphomyia Meigen, 1822 are listed. A key to genera is provided, 25 species are transferred to Porphyrochroa: P. abdominalis (Bezzi, 1905) comb. nov., P. argyrina (Bezzi, 1909) comb. nov., P. barueri (Smith, 1962) comb. nov., P. carrerai (Smith, 1962) comb. nov., P. catarinae (Smith, 1962) comb. nov., P. cyanogaster (Wheeler & Melander, 1901) comb. nov., P. digitata (Smith, 1962) comb. nov., P. distinctipennis (Smith, 1962) comb. nov., P. divisa (Smith, 1962) comb. nov., P. dolichocera (Bezzi, 1905) comb. nov., P. fasciventris (Curran, 1931), P. furcifer (Wheeler & Melander, 1901) comb. nov., P. galactodes (Bezzi, 1909) comb. nov., P. juri (Smith, 1962) comb. nov., P. micrargyra (Bezzi, 1909) comb. nov., P. monstrosa (Bezzi, 1909) comb. nov., P. mundurucu (Smith, 1962) comb. nov., P. mura (Smith, 1962) comb. nov., P. orthoneura (Bezzi, 1905) comb. nov., P. palliata (Coquillett, 1902), P. penicillata (Bezzi, 1909) comb. nov., P. perpulchra (Bezzi, 1909) comb. nov., P. pulchriventris (Bezzi, 1905) comb. nov., P. rotundipennis (Bezzi, 1905) comb. nov., P. seticauda (Smith, 1963) comb. nov., P. variseta (Smith, 1962) comb. nov. and P. wiedemanni (Smith, 1962) comb. nov. A lectotype is designated for P. palliata (Coquillett, 1902).
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 0.002 |
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".