Review of the genus Zercoseius Berlese, 1916, with first description of a deutonymph, and seven new species (Acari: Mesostigmata: Blattisociidae)
Bibliographic record
Abstract
Records of the genus Zercoseius Berlese in North America are presented from British Columbia and Oregon, in South America from Brazil and Ecuador, and in Europe from northern Europe and Spain. Its sister-group relationships with other genera of Blattisociidae are reviewed. The first description and illustration of a deutonymph reveals an ontogenetic autapomorphy for the genus, the anal shield enlarged to a ventrianal shield bearing more setae than the circumanal setae. Adult females of the Z. spathuliger species group are confirmed to have elements of a phytoseioid sperm access system. A revised diagnosis and description of Zercoseius are presented, along with an updated key to world genera and subgenera of the family Blattisociidae. Apart from the recently described, Neotropical Z. luizdequeiroz Santos et al., uncertainties persist as to whether only one species or a species group currently constitutes the type species of the genus. Nine species, including seven new species of that group are described and illustrated, with a key to those species, based on representatives from western North America and Europe.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.006 | 0.005 |
| Science and technology studies | 0.001 | 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) | 0.006 | 0.002 |
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".