Parachaetocladius lenferringtoni (Diptera: Chironomidae), a new orthoclad from North America, with keys to adult males and pupae of the Nearctic Parachaetocladius (Wülker, 1959)
Bibliographic record
Abstract
In this study, we describe Parachaetocladius lenferringtoni sp. nov., based on all its life stages, and provide keys to adult males and pupae of the Nearctic Parachaetocladius. The new species was originally placed in Parachaetocladius abnobaeus (Wlker 1959) due to the similarity in the hypopygium of these species. However, a detailed examination of adults and associated immature specimens demonstrates that P. lenferringtoni sp. nov. represents a single species that is different from P. abnobaeus. Diagnostic adult and pupal characters were identified to separate this new species from P. abnobaeus and other species of Parachaetocladius. The separation of the larva of P. lenferringtoni sp. nov. and P. abnobaeus is currently tenuous, but some possible diagnostic characters are provided. Material of P. lenferringtoni sp. nov. was obtained for this study from Canada (Manitoba) and the United States of America (Kansas, Minnesota, Nebraska, and Wisconsin), indicating this species is largely limited to central North America. The habitat of this new species matches that of other Parachaetocladius species in that it has been collected from sandy substrates in springs and groundwater-dominated streams.
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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 | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".