A new genus of flower-dwelling melicharid mites (Acari: Mesostigmata: Ascoidea) phoretic on bats and insects in Costa Rica and Brazil
Why this work is in the frame
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Bibliographic record
Abstract
The genus Spadiseius gen. nov. of the ascoid family Melicharidae is described, based on all instars of two newly described species in Costa Rica and adults of four undescribed species in Costa Rica and Brazil. These mites undergo their life histories quickly in spike or spadix inflorescences of their plant hosts in lowland tropical rainforests, where they apparently feed on nectar or pollen. One inflorescence may bear hundreds of the developing mites in all instars. Pollen is found on all instars of these mites, which may act as miniature pollinators of their plant hosts. Adult males are strongly sexually dimorphic, with bizarrely modified setae peripherally on the body dorsum and on dorsal surfaces of the legs. These structures are thought to be used competitively for mates, in much the same way as in males of the related hummingbird flower mite genera Rhinoseius and Tropicoseius. Spadiseius calyptrogynae sp. nov. lives in inflorescences of a palm, Calyptrogyne ghiesbreghtiana, and has a phoretic association both with perching bats of the genus Artibeus, which are major pollinators of this plant, and scarab beetles of the genus Lagochile, which feed destructively on flowers of this plant. Spadiseius spathiphyllae sp. nov. lives in inflorescences of an aroid, Spathiphyllum friedrichsthalli, and is phoretic on meliponine bees of the genus Trigona that pollinate this plant. Polymorphism among adult males occurs in both species. In male S. calyptrogynae a “warty” ornamentation of the dorsal shield seems to be correlated with extreme elongation of certain body and leg setae, while in male S. spathiphyllae such disproportionate setal elongation seems correlated with more robust individuals of greater body and leg dimensions. Several newly recognized morphological attributes are noted among species of Spadiseius, including apically forked salivary styli.
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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