Lasionycta coracina Crabo & Lafontaine 2009, sp. n.
Notice bibliographique
Résumé
<i>Lasionycta coracina</i> Crabo & Lafontaine, sp. n. urn:lsid:zoobank.org:act: 884101B7-189C-4311-8A32-2C3EC330DE3B Figs 31, 32, 149, 205. Map 7 <b>Type material.</b> <b>Holotype</b> ♁. Canada, Northwest Territories, Richardson Mts., 67.141° N 136.004° W, 690 m., 5 July 2009, L. Crabo and G. Morrell. CNC. <b>Paratypes:</b> 10 ♁, 20 &female;. <b>Canada, Northwest Territories.</b> Same data as holotype (6 ♁, 5 &female;). <b>Yukon.</b> British Mts, Firth R., 24 July 1956, E. P. Cashman / Slide No. 8364 (1 &female;); same locality, 25 July 1956, R. E. Leech (1 &female;); Richardson Mts, km 413 [Dempster Hwy], 66.630° N 136.275° W, 840 m., 2–3 July 2009, L. Crabo and G. Morrell (1 ♁, 4 &female;); same locality and collectors, 5 July 2009 (7 &female;); km 416 Dempster Hwy, 22–28 June 1980, 750 m, Wood and Lafontaine / Slide No. 8309 (1 ♁); Mi 252 Dempster Hwy, 1 July 1985, Tom Kral / Databased for CNC, Noctuoidea # 10526/ Barcodes of Life Project, University of Guelph, DNA # Noctuoidea 10528 (1 &female;); km 465 Dempster Hwy, 4 July 1985, 800 m., J. and L. Troubridge / Databased for CNC, Noctuoidea # 10286/ Barcodes of Life Project, University of Guelph, DNA # Noctuoidea 10286 (1 &female;); <b>USA, Alaska.</b> Cape Th ompson, 3 Aug. 1961, B. S. Heming (2 ♁). CNC, LGC, UASM, USNM, personal collection of Glenn Morrell, Maine, USA. <b>Etymology.</b> <i>Coracina</i> is Latin and means raven-like, a reference to the dark appearance and northern distribution of this species. <b>Diagnosis.</b> <i>Lasionycta coracina</i> is a small entirely dark-gray species from northern Alaska, northern Yukon, and adjacent Northwest Territories. It resembles a dark <i>L</i>. <i>leucocycla</i> with which it is structurally indistinguishable in males and females. <i>Lasionycta coracina</i> differs from all <i>L</i>. <i>leucocycla</i> sub-group species except <i>L</i>. <i>anthracina</i> in having a dark dorsal hindwing. <i>Lasionycta anthracina</i> occurs far south and east of the range of <i>L</i>. <i>coracina</i> <i>.</i> The forewing apex of <i>L</i>. <i>coracina</i> is more sharply angled than that of <i>L</i>. <i>anthracina</i> and it is a duller gray without a warm brown tint. Th e hindwing fringe is pale in <i>L</i>. <i>coracina</i> whereas it is dark in <i>L</i>. <i>anthracina</i>. The single available CO1 sequence of <i>L</i>. <i>coracina</i> is identical to one of the haplotypes of <i>L</i>. <i>leucocycla albertensis</i>. <b>Description. Head <i>–</i></b> Antenna of male weakly biserrate. Antenna of female filiform and ciliate. Dorsal antenna gray with scattered white scales in distal row on each segment. Scape mixed gray and white scales. Eye reduced, ellipsoid. Palpus covered with dark-gray and scattered white scales. Frons and top of head a mixture of darkgray and white hair-like scales. <b>Thorax <i>–</i></b> Vestiture of thorax a mixture of dark-gray and white hair-like scales, appearing uniform dark gray. Legs dark gray with lighter gray to white at distal end of tarsal segments. <b>Wings <i>–</i></b> Forewing length: male 11–13 mm (expanse 23 <i>–</i> 30 mm); female 12 <i>–</i> 13 mm (expanse 24 <i>–</i> 31 mm). Forewing a mixture of slate gray, black, and white scales, appearing uniform to slightly mottled ash gray. Terminal area with luteous scales in some specimens. Basal, antemedial, and postmedial lines dark gray with slightly lighter filling. Basal and antemedial lines undulating. Medial line nearly obsolete, evident as slightly darker area between orbicular and reniform spots. Postmedial line moderately scalloped between veins, excurved between top of cell and fold. Subterminal line pale, evident mostly due to irregular dark shading proximally. Spots dark gray, faint. Orbicular spot round, filled with ground color or pale-gray scales and a faint darker ocellus. Reniform spot faint, evident as a dark smudge. Claviform spot faint and small. Fringe of ground color to pale gray, weakly checkered with darker gray between veins. Ventral forewing brown gray with dark-gray discal spot, subterminal line, and terminal area. Dorsal hindwing dark brown gray with slightly darker gray postmedial line and wide marginal band. Discal spot inconspicuous, slightly darker gray than ground color. Hindwing fringe white. Ventral hindwing covered with pale-gray scales and heavily suffused with dark-gray scales, appearing slightly lighter than ventral forewing. Markings darker gray. Discal spot moderately large and thick. Postmedial line closer to marginal band than to discal spot, variable in darkness, evident only at costa in some specimens and nearly complete in others. Marginal band thin with sharply demarcated medial margin. Fringe uniform luteous to white. <b>Abdomen –</b> Uniformly dark gray. <b>Male genitalia –</b> (Fig. 149). Genital capsule and aedeagus as for <i>L</i>. <i>leucocycla</i> species-group and <i>L</i>. <i>leucocycla</i> sub-group descriptions. Valve approximately 6.8× as long as wide. Single vesica preparation examined lacks subbasal cornuti. <b>Female genitalia –</b> (Fig. 205) Ovipositor, segment VIII, and bursa copulatrix as in <i>L</i>. <i>leucocycla</i> species-group description. Corpus bursae approximately 1.3× ductus bursae length and 0.6× as wide as long with 50 % constriction near base. Appendix bursae relatively wide at base. <b>Distribution and biology.</b> This species is only known from the Richardson and British Mountains in northern Yukon, adjacent Northwest Territories, and Cape Thompson in northwestern Alaska. Specimens were collected from late June to early August. Th e habitat in the Richardson Mountains is sparsely vegetated gravel tundra slopes with <i>Dryas</i> (Rosaceae) stripes. Th e adults feed at <i>Saxifraga</i> spp. (Saxifragaceae). Th e moths are diurnal, most active in the late afternoon and when cloudy. <b>Remarks.</b> <i>Lasionycta coracina</i> is similar to <i>L</i>. <i>fumida</i> (Graeser) <b>stat. rev.</b> from eastern Russia, previously treated as a subspecies of <i>L</i>. <i>leucocycla</i> (Lafontaine et al. 1986), but differs structurally; <i>L</i>. <i>fumida</i> has a round eye unlike <i>L</i>. <i>leucocycla</i> and <i>L</i>. <i>coracina</i>, suggesting that it is nocturnal. Th e male valve of <i>L</i>. <i>fumida</i> is longer and more slender than that of either of the other two species.
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 distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,001 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,011 | 0,016 |
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; les deux têtes enseignantes s’accordent sur ce qui est montré ici.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».