Phymatodes nigrescens Hardy and Preece, NEW STATUS
Bibliographic record
Abstract
Phymatodes nigrescens Hardy and Preece, NEW STATUS (Figs 23, 24) Phymatodes vulneratus var. nigrescens Hardy and Preece, 1927:190. Type locality: Sydney, British Columbia, Canada. CNC Phymatodes oregonensis Chemsak, 1963:39. Type locality: Grave Creek, Josephine County, Oregon, USA. CASC NEW SYNONYMY Chemsak (1963) diagnosed his P. oregonensis from the Pacific Northwest with P. a t e r from eastern North America, noting that the two species were most similar. However, among North American Phymatodes, P. oregonensis appears most similar to P. vulneratus. In fact, the name P. vulneratus var. nigrescens Hardy and Preece was already available for populations in the Pacific Northwest and has priority over Chemsak’s P. oregonensis. The type of P. v. var. nigrescens matches P. oregonensis, and the type series of this taxon extends the range of this species into Washington and British Columbia. Linsley (1964) noted that P. oregonensis “resembles the dark forms of P. vulneratus LeConte, but the elytral punctation differs greatly in the two species”, without further elaboration. Phymatodes nigrescens is in fact distinct from these dark forms of P. vulneratus as well. It can be separated from both bicolored and unicolored forms of P. vulneratus by the coarsely punctate apical one-half of the elytra; the overall more coarsely, sparsely punctate elytra; and the narrower, sinuate antemedian fasciae. Phymatodes vulneratus has impunctate, rugose elytral apices; more finely and densely punctate elytra at the basal one-half; and thinner, more linear, parallel-sided antemedial fasciae. Under ICZN (1999) article 45.6.4, the infrasubspecific variety named by Hardy and Preece is considered subspecific, and therefore an available name. Specimens examined: 123, including the type of P. v. var. nigrescens, P. oregonensis, and P. vulneratus
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.013 | 0.003 |
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".