Testing the monophyly of the subtribe Deronectina and the phylogenetic position of the Nearctic endemic genus Leconectes Fery & Ribera, 2018 (Coleoptera: Dytiscidae, Hydroporinae) based on larval morphology
Bibliographic record
Abstract
We describe the larvae of the monotypic Nearctic endemic diving beetle Leconectes striatellus (LeConte, 1852), including detailed morphometric, chaetotaxic, and porotaxic analyses of the cephalic capsule, head appendages, legs, terminal abdominal segment and urogomphi in order to discover useful characters for distinguishing Leconcetes Fery & Ribera, 2018 larvae from those of other known Deronectina genera i.e., Deuteronectes Guignot, 1945, Deronectes Sharp, 1882, Hornectes Fery & Ribera, 2018, Nectoporus Guignot, 1950, Neonectes J. Balfour-Browne, 1944, Oreodytes Seidlitz, 1887, and Scarodytes Gozis, 1914. A parsimony analysis based on 75 larval characters was conducted using the program TNT. The main conclusions arising from this analysis are: (1) Deronectina are monophyletic; (2) Deronectes is sister to other Deronectina; (3) Scarodytes and Leconectes are monophyletic and belong to a lineage best adapted for swimming; (4) Nectoporus and Deuteronectes represent two strongly supported monophyletic entities.
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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 | 0.001 | 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".