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Record W4416832361 · doi:10.11646/megataxa.18.1.1

A revision of the former family Pseudopomyzidae (Diptera, Acalyptratae, Cypselosomatidae)

2025· article· W4416832361 on OpenAlexaff
TIFFANY YAU, Stephen W. Marshall, Matthias Buck

Bibliographic record

VenueMegataxa · 2025
Typearticle
Language
FieldAgricultural and Biological Sciences
TopicDiptera species taxonomy and behavior
Canadian institutionsRoyal Alberta MuseumUniversity of Guelph
Fundersnot available
KeywordsSubgenusParaphylyGenusSister groupKey (lock)

Abstract

fetched live from OpenAlex

The former family Pseudopomyzidae is revised. Morphological characters and multiple genes are used to assess relationships among the families of Nerioidea, concluding that the family Pseudopomyzidae as currently defined is paraphyletic with respect to Cypselosomatidae Hendel; the family Cypselosomatidae is therefore redefined to include the Pseudopomyzidae. The subgeneric classification of the large genus Pseudopomyza Strobl is updated by synonymizing the subgenera Macalpinella Papp and Rhinopomyzella Hennig with Pseudopomyza s.s., and reinstating the subgenus Heluscolia (Harrison), resulting in four valid subgenera: Apops McAlpine, Dete McAlpine, Heluscolia and Pseudopomyza s.s. The subgenus Apops is composed of two previously included species (P. flavitarsis (Harrison) (New Zealand) and P. arenae McAlpine (Australia, Tasmania)) and three new species (P. chilensis Yau and Marshall (Chile), P. medianentis Yau and Marshall (Australia, Western Australia) and P. nigritarsis Yau and Marshall (New Zealand)). The subgenus Dete includes P. collessi McAlpine (Australia). The subgenus Heluscolia includes P. antipoda (Harrison) and P. brevis (Harrison), both from the New Zealand Subantarctic Islands. The subgenus Pseudopomyza includes P. aristata (Harrison) (New Zealand), P. atrimana (Meigen) (Palaearctic), P. brevicaudata (Harrison) (New Zealand), P. brevifacies (Papp) (Oriental and Palaearctic) and the P. nigrimana species group (formerly treated as the subgenus Rhinopomyzella). The P. nigrimana species group, shown here to be the sister group to P. atrimana, includes P. albimana (Hennig), P. nigrimana (Hennig) and fifteen new species (P. adunca Yau and Marshall, P. ampliata Yau and Marshall, P. angustifrons Yau and Marshall, P. binaevia Yau and Marshall, P. brunneicacumen Yau and Marshall, P. cordata Yau and Marshall, P. cyathiformis Yau and Marshall, P. flavicacumen Yau and Marshall, P. gambiformis Yau and Marshall, P. inflexa Yau and Marshall, P. machaera Yau and Marshall, P. parabinaevia Yau and Marshall, P. proboscis Yau and Marshall, P. prolata Yau and Marshall, P. simulatrix Yau and Marshall).

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.008
Threshold uncertainty score0.026

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0020.002
Open science0.0010.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0080.003

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.

Opus teacher head0.019
GPT teacher head0.238
Teacher spread0.218 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2025
Admission routes1
Has abstractyes

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