Mahanarva (Ipiranga) nefasta Meneghetti, Biganzoli-Rangel, Carvalho & Paladini, 2025, sp. nov.
Notice bibliographique
Résumé
3.4. 11.Mahanarva(Ipiranga)nefastasp. nov. Figures 6 I, 13 A – L Measurements male / female. Head length: 0.84 / 0.97; head width: 1.87 / 2.02; pronotum length: 1.57 / 1.83; pronotum width: 2.75 / 3.01; tegmen length: 7.67 / 8.35; tegmen width: 2.33 / 2.4; total length: 9.1 / 10.22 (in mm). Diagnosis. Tegmina brownish with one complete, yellowish transverse band between basal and median third, and an incomplete transverse band between median and apical third; subgenital plate not excavated at the basal portion and with an acute apex; paramere apex rounded. Description. Head black, vertex subretangular with a slightly marked median carina in the apex, but indistinct on its base, ocelli closer to each other than to eyes, separated by about one diameter from each other; tylus quadrangular, black, with its basal third with slightly marked carina, becoming indistinct towards the apex (Fig. 13 A); antenna brownish, pedicel sparsely setose; basal body of flagellum subcylindrical with a single and short arista shorter than the pedicel length. Postclypeus black, inflated, with convex profile, longitudinal carina present, lateral grooves slightly marked (Fig. 13 B, C); rostrum with second segment yellowish and third segment brownish, reaching the base of mesocoxae. Pronotum black, hexagonal, with muscular insertions slightly apparent, median carina slightly marked; anterior and anterolateral margins straight; posterolateral with slight sinuosity and posterior margin medially grooved, humeral angles acute; scutellum black, with slight central concavity and slightly marked horizontal grooves. Tegmina (Fig. 13 A, B) brownish, narrow, with one transverse complete band yellowish between basal and median third and an incomplete yellowish band resembling rounded spots, between median and apical third; veins M and Cu 1 united at base, veins A 1 and A 2 distincts, apical reticulation undeveloped, prominent venation. Hindwings hyaline, with brownish venation, Cu 1 thickened at the base, hamuli with three spines. Legs light brown, metathoracic femur with a small apical spine; tibia with two lateral spines, basal one smaller than the ones located at apical crown, which has 12–14 spines arranged in two rows; basitarsus with three rows of spines covered by long setae; subungueal process present. — MALE: Genitalia: Pygofer (Fig. 13 D, E) with one finger-like processes between anal tube and subgenital plate; subgenital plate long, not excavated at the basal portion, covered with small tooth-like spines, and narrowing towards the apex, which is acute. Paramere (Fig. 13 F) subretangular, dorsal margin rounded and developed, apex rounded; subapical hook-like spine directed outwards and forward. Aedeagus (Fig. 13 G – I) subcylindrical, narrowing towards apex with a pair of straight dorsal processes, shorter than half the length of the shaft and inserted between middle and apical third of aedeagus. — FEMALE: Morphology similar to that of the male, but slightly larger in relation to total body length. First valvula of ovipositor long (Fig. 13 J, K), with acute apex, basal process rounded and developed, directed downwards; second valvula (Fig. 13 L) long with rounded apex and dorsal margin covered by teeth in apical third; third valvula short and wide, with rounded apex, covered ventrally by long setae. Remarks. This species was being treated as M. (I.) aguirrei mainly by the pattern and coloration of the tegmina, and the phylogenetic analysis presented here corroborates a close relationship between these species (Fig. 4). Despite this, they differ in several aspects in relation to male genitalia: while M. (I.) aguirrei presents a long subgenital plate with rounded apex and a rounded depression on its basal third, M. (I.) nefasta sp. nov. has an acute subgenital plate apex. Moreover, M. (I.) aguirrei has a subquadrangular paramere apex, which differs from the rounded paramere apex seen in M. (I.) nefasta sp. nov. In comparison to the other species within the subgenus, this species presents a more developed basal process of the ovipositor. Etymology. The new species name is due to the fact that it had long been mistaken for M. (I.) aguirrei in our morphological analyses. Distribution. Brazil (Minas Gerais). Material examined. BRASIL, Holotype ♂: Minas Gerais: Uberaba, 04.i.1984, Koller, W. W. leg. (MCTP); Paratypes: same data as holotype, 8 ♂, 6 ♀ (DZUP). Adicional material examined. BRASIL, Minas Gerais: Uberaba, 04.i.1984, Koller, W. W. leg. 9 ♂, 3 ♀ (MCTP).
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) | 0,000 | 0,000 |
| Bibliométrie | 0,001 | 0,001 |
| Études des sciences et des technologies | 0,002 | 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) | 0,011 | 0,004 |
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 ».