Observations on the life history and habits of a tropical sawfly, <i>Sericoceros mexicanus</i> (Kirby), (Hymenoptera: Argidae) on Roatán Island, Honduras
Bibliographic record
Abstract
Observations on the life history and habits of a tropical sawfly, Sericoceros mexicanus, on Roatán Island, Honduras, during January 2002, are reported. This sawfly occurs in southern Mexico and Central America where it feeds on the foliage of Coccoloba spp. On Roatán Island, the only host is seagrape, C. uvifera, a small to medium tree, which occurs on sandy beaches just above tide line. The adults are colourful insects and relatively strong fliers. They swarm around host trees on warm, sunny days and during cool or overcast periods, rest on seagrape foliage and branches. In 2002, a period of peak adult activity occurred between January 8 and10. Eggs are deposited in circular or slightly oval clusters on the undersides of seagrape leaves. Mean egg cluster size is 32.7, range 785. Female adults remain with the egg cluster until they die. Eggs hatch within two or three days of oviposition and the larvae feed gregariously on the edges of seagrape leaves, consuming all of the leaf tissue except the major veins. Larvae undergo six instars. However, the small number of instar VI larvae collected suggests that female larvae may undergo an extra instar, as is the case with other species of sawflies. Pupation occurs in parchment-like cocoons attached to leaves, leaf petioles and branches of seagrape. Occasionally, cocoons are attached to wooden surfaces such as picnic benches. A few instar VI larvae were seen with symptoms suggesting virus infection. While heavily infested trees can suffer complete defoliation, the insect appears to cause little or no permanent damage. Local residents regard the insect as a curiosity rather than a pest and report at least two periods of defoliation a yearJanuary and August. Key words: Sericoceros mexicanus, seagrape, Coccoloba uvifera, sawflies, defoliation, tropical forest insects, forest insects
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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) | 0.000 | 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 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 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".