Parapiophila atrifrons Melander & Spuler
Bibliographic record
Abstract
Parapiophila atrifrons (Melander & Spuler) Piophila atrifrons Melander & Spuler, 1917: 66 (type locality: United States of America. Idaho: Troy). Allopiophila calceata Duda, 1924: 174 (type locality: Sweden: Gällivare and Abisko), syn. n. NBP/NIS material examined. 9 ♂, 9 ♀ from the following sites: Manitoba: Churchill; Northwest Territories: Norman Wells; Nunavut: Kugluktuk; Ontario: Moosonee; Quebec: Schefferville (vi.1952, 1962; vii.2010, vi–vii.2011; viii.1952) (CNC, LEM). Other material examined. Lectotype of P. atrifrons: 1 ♂ labelled Troy, Idaho, 14.vi.08, Paratype Piophila atrifrons M-S, Lectoholotype P. atrifrons, d. G Steyskal 1963, Lectotype Piophila atrifrons Melander, Spuler, 1917: 66, by Steyskal, 1964: 177, det. A Ozerov, 2002 (USNM). Paralectotypes: UNITED STATES OF AMERICA. Washington: Oroville, Paratype M.-S., Paralectotype, Melander et Spuler, 1917: 66, det. A.L. Ozerov 2003, USNM ENT 0 1071201, (1 ♀, USNM); Oroville, Type M.-S., Paralectotype, Melander et Spuler, 1917: 66, det. A.L. Ozerov 2003, USNM ENT 0 1071192, (1 ♀, USNM). Comments. Parapiophila atrifrons is widespread in northern Canada and the northern United States (Washington, Idaho, Maine) (Melander & Spuler 1917; McAlpine 1977). It is also known from the Palaearctic region (McAlpine 1977; Ozerov 2004b). Steyskal (1964) suggested that Allopiophila calceata might be conspecific with Parapiophila atrifrons but that examination of more specimens would be required. We examined 185 specimens of both species from CNC and LEM. The only reliable difference between A. calceata and P. atrifrons is the shape of the tip of the pregonite: one round and one pointed tip in P. atrifrons; two pointed tips in A. calceata (McAlpine 1977). The male genitalia are otherwise identical, and the minor difference in the pregonite may not be enough to justify two species. Parapiophila nitidissima (Melander & Spuler) has variation in the shape of the pregonite tip (Steyskal 1975). There is variation in the colour of the fore tibia in some specimens, but such variation is seen in multiple species of Parapiophila (e.g., P. vulgaris (Fallén), P. fulviceps (Holmgren), P. kugluktuk). In addition to morphological evidence, there was almost no divergence in DNA barcodes (658 bp of CO1) between five specimens of P. atrifrons and A. calceata from Ontario, Quebec and the Northwest Territories in LEM (Barcode of Life Database numbers: BOLD LYMAA315–14, 316–14, 319–14, 320–14, 321–14) identified by S. Rochefort based on morphological characters and compared with types of P. atrifrons and original descriptions of both species. Based on morphological and molecular evidence, we consider A. calceata a junior synonym of P. atrifrons.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.009 | 0.004 |
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".