Phylogenomics of Phengodidae (Coleoptera: Elateroidea): towards a natural classification of a bioluminescent and paedomorphic beetle lineage, with recognition of a new subfamily
Why this work is in the frame
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Bibliographic record
Abstract
Abstract Phengodidae (Coleoptera: Elateroidea), commonly known as glowworm beetles, are a small family of bioluminescent and paedomorphic beetles. There are few phylogenetic studies of Phengodidae, and these are mostly discordant, especially when comparing morphology-based and molecular-based phylogenetic hypotheses. Here, we used the anchored hybrid enrichment approach to undertake the first phylogenomic analysis of Phengodidae (≤358 loci and 39 taxa) and evaluate the higher-level classification of the group. In agreement with previous molecular studies, we recovered Phengodidae as sister to Rhagophthalmidae, and the Old World Cydistinae as sister to all New World Phengodidae. In contrast to previous hypotheses, both Phengodinae and Mastinocerinae were each recovered as monophyletic. Cenophengus was found to be sister to Mastinocerinae, in contrast to some previous hypotheses that placed it as sister to all New World Phengodidae. Considering its morphological divergence, we here establish Cenophenginae subfam. nov. Despite the largest and most comprehensive sampling of Phengodidae in any molecular-based study to date, we had only limited success in revealing the relationships among genera within the most species-rich subfamily, Mastinocerinae. Further studies should focus on the phylogeny and classification of this taxonomically neglected subfamily, on the phylogenetic placement of enigmatic Penicillophorinae, and on seeking morphological support for the main clades of Phengodidae.
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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