Description of the first- and third-instar larvae of <i>Hydrocanthus levigatus</i> (Brullé, 1837) (Coleoptera: Noteridae)
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Bibliographic record
Abstract
We describe the first and third larval instars of Hydrocanthus levigatus (Brullé, Citation1837), including morphometric and chaetotaxic analyses of the cephalic capsule, head appendages, legs, last abdominal segment, and urogomphus. Larvae of this species have many dark dorsal maculae on the body, similar to those of H. socius Sahlberg, Citation1844 and H. debilis Sharp, Citation1882. First instar larvae of H. levigatus can be separated from those of H. socius and H. debilis by the following combination of characters: large size and seta TI5 somewhat longer than tibial length on mesothoracic and metathoracic legs. Conversely, the third instar of H. levigatus differs from those of H. socius and H. debilis in the greater number of secondary setae on the legs.
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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 it