Taxonomic revision of Nylanderia (Hymenoptera: Formicidae) in the Nearctic region
Bibliographic record
Abstract
Nylanderia (Hymenoptera: Formicidae) is a genus in the Prenolepis genus-group of formicine ants. They are distinguished from other formicine genera by the presence of six (rarely seven) mandibular teeth, paired macrosetae on the head and mesosoma, and a global distribution. Over 130 species have been described, 13 of which are from the Nearctic region, which includes Canada, the United States, and areas of northern and central Mexico. Two species are newly described from the Nearctic region: N. querna and N. trageri, both from the central United States. All castes of each taxon are accompanied by images and known distribution maps. Updated keys for both workers and males include these new taxa. Worker morphology is frequently convergent and male features have proven effective in distinguishing species, and special attention is focused on the male caste. It is not unlikely that further analysis of widespread species would indicate cryptic complexes. Discussion follows on discovery of new species, biogeography, and social parasitism in the clade.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 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 | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 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".