Cerodontha (Icteromyza) longipennis Loew
Bibliographic record
Abstract
Cerodontha (Icteromyza) longipennis (Loew) (Figs. 13, 42, 43) Material examined. MASSACHUSETTS: Berkshire Co., Lenox, Parsons Marsh, 20.vi.2017, em. by 7.vii.2017, C.S. Eiseman, ex Carex pseudocyperus, #CSE3901, CNC939712 (1³). Hosts. * Cyperaceae: Carex pseudocyperus L.; Juncaceae: Juncus xiphioides E. Mey. (Frick 1959). Leaf mine. (Figs. 42, 43) On Carex pseudocyperus, elongate and whitish, on the upper leaf surface. The mine from which the adult emerged contained a single larva and was formed along the leaf margin; an associated mine contained two larvae and was formed in the center of a leaf. No frass was evident to the naked eye, with minute, fine strips visible in transmitted light under magnification (and with a small cluster of thicker particles near the puparium). Frick (1959) reared this species from both leaf and stem mines on Juncus xiphioides but gave no further details. Puparium. (Fig. 13) Brown, elongate, with deep intersegmental grooves; formed within the mine. Distribution. Known from almost all American states and Canadian provinces (Boucher 2012). Comments. This is the first record of a species of Cerodontha (Icteromyza) from Carex. Besides Juncus (Juncaceae), the only other confirmed host for the subgenus is Eriophorum L.; there is also an unconfirmed record from Fimbristylis Vahl (both Cyperaceae) (Boucher 2012). Frohne (1938, 1939) reported C. longipennis as a stem miner on Schoenoplectus acutus (Muhl. ex Bigelow) Á. L̂ve & D. L̂ve var. occidentalis (S. Watson) S.G. Sm. and S. americanus (Pers.) Volkart ex Schinz & R. Keller (Cyperaceae) in Michigan, but these records require confirmation. He stated that the larvae mine downward, forming “varicose elongated blotch mines” that often end below the water level. When mature, they are green and about 7 mm long; puparia are about 5 mm by 2 mm. Since our C. longipennis puparia are only 2.5 mm long, we are skeptical that his observations refer to the same insect. In our experience puparium length of agromyzids is roughly equal to wing length, and Boucher (2012) reported wing lengths of 1.9–3.1 mm for C. longipennis based on examination of 449 specimens.
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 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) | 0.000 | 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) | 0.006 | 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".