Leptostigma longiclava Archibald & Rasnitsyn 2023, n. sp.
Notice bibliographique
Résumé
Leptostigma longiclava n. sp. http://zoobank.org/ urn:lsid:zoobank.org:act: B8F5BDEE-1B98-4F5F-94FB-646D070B6153 Figs. 3K–L, 11–12. Holotype. RBCM.EH2017.050.4085.0001a, b (part, counterpart) (Figs. 3K–L, 11). Mostly complete in dorsal aspect but missing much of the abdomen; collected at McAbee by John Leahy; housed in the collections of the RBCM. Diagnosis. Distinguished from other species of Leptostigma by a combination of antenna with club long, darkened, penultimate segment longer than ultimate, flagellar base formed by long, dark, apparently single (entire) segment. Forewing lightly, evenly infuscate throughout (no fascia or macula). Tentatively diagnostic: R+M shorter than 1-M, 2r-rs joins cell 3rm distinctly behind its middle, 2r-m joins M far behind 2m-cu, anal cells meet at crossvein or are at most minimally separated by a very short fusion of 1A with 2A+3A. Description. Holotype. Body. Length not known by preservation, tentative specimen F-848 ca. 14 mm as preserved, likely 15–16 mm in life. Head, thorax, scape, pedicel, basal flagellomere, femora dark; antennal club, pterostigma, tibiae, metasoma darkened as preserved; flagellar segment 2 rather pale, wing membrane lightly infuscate throughout. Head as preserved difficult to interpret. Antenna apparently 7-segmented, with scape, particularly pedicel very short, first flagellomere longest (about one third of flagellum), those following gradually becoming shorter and, except apical one, wider, apical one half-oval. Thorax with distinct median longitudinal mesonotal sulcus, notauli complete, meeting well before transverse scutellum; metascutellum narrow (narrower than normal in Pachylostictinae, Corynidinae), cenchri not apparent. Forewing length 14 (holotype)– 16 mm, maximum width 4.5 (holotype)– 5 mm, length/width 3.1–3.2; pterostigma narrow, similar to width of C&R basal of pterostigma; R+M as long as 1-M in left wing, shorter in right; 2r-rs shorter than Rs between 2rm, 2r-rs, entering Rs behind middle of cell 3rm; 2r-m distinctly curved, joins Rs about same level as 2m-cu joining M, joins M behind 2m-cu for more than half length of 2r-m; 3r-m almost straight; 1-M curved; 1-M and 1m-cu slightly diverging toward wing anterior margin; cell 2mcu with M shorter than 1m-cu; 2m-cu slightly curved or angular mid-length; cu-a slightly postfurcal; anal cells minimally separated by a very short fusion of 1A with 2A+3A, no crossvein between them (in F-848, anal cell region not preserved in holotype). Hind wing mostly indistinctly preserved, crossveins 3r-m, m-cu present, distant for less than length of 2r-m. Abdominal tergum 1 possibly split medially, with hind margin straight. Remarks. Differs from L. brevilatum n. sp. and L. longipallidum n. sp. by its club long and darkened [short, wide, and dark in L. brevilatum n. sp.; long and pale in L. longipallidum n. sp.]; differs venationally, tentatively, from both L. brevilatum n. sp. and L. longipallidum n. sp. in 2r-rs joining cell 3rm distinctly distal to its middle [vs. at or before middle]. Differs from L. longitenebricum n. sp. that has a generally similar antenna (club long, darkened) in that its flagellar base is formed by one long, dark segment [vs. two pale, relatively short ones], and by its penultimate club segment longer than ultimate [vs. shorter]. L. longiclava n. sp. also differs from L. longitenebricum n. sp. in having anal cells at most minimally separated [vs. distant for more than half width/height of cell 2a]. Differs from L. proxivena n. sp., L. fasciatum n. sp., and L. alaemacula n. sp. by its forewing lightly, evenly infuscate throughout [vs. with dark transverse fascia or macula at or basal to level of pterostigmal base] and 2r-m entering M far behind, not close to 2m-cu. Material. Holotype and tentatively (based on venational characters) specimen F-848 (Fig. 12), collector unknown at McAbee, in the collections of TRU. Etymology. From the Latin longus, meaning long, and clava, club, referring to the antennae. The epithet is a noun in apposition. Locality and age. McAbee, British Columbia, Canada, Hoodoo Face beds; mid-Ypresian.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,001 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,003 | 0,001 |
| Études des sciences et des technologies | 0,003 | 0,001 |
| Communication savante | 0,001 | 0,001 |
| Science ouverte | 0,001 | 0,001 |
| Intégrité de la recherche | 0,001 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,026 | 0,009 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».