Sclerocoelus aduncus Kuwahara, Marshall & Paiero, 2025, sp. nov.
Bibliographic record
Abstract
Sclerocoelus aduncus sp. nov. urn:lsid:zoobank.org:act: C599DCDE-8989-4D4E-927C-A00C7A4134B4 Figs 5A, 11–12 Etymology This name refers to the apically hooked male cercus (from the Latin ‘ aduncus ’, meaning ‘hooked, bent, curved’). Material examined Holotype ECUADOR • ♂; Pichincha, Campamento Pichan, near Nono; 3350 m a.s.l.; 0°7′31″ S, 78°33′56″ W; 24 Oct. 1999; S.A. Marshall leg.; cloud forest, green leaf litter; QCAZ debu00115508. Paratype ECUADOR – Pichincha • 1 ♂; same data as for holotype; DEBU debu00115545. Description BODY (Fig. 11A). Length 2.9–3.4 mm. Head dark brown, orbital plate, face, and antenna orange; gena and frontal vitta reddish. Frontal width 2.2–2.3 × frontal height. Two pairs of large interfrontal bristles surmounting a fine third (holotype has a third large interfrontal bristle on one side); anterior orbital 0.4– 0.5× length of posterior. Palpus pale brown. Eye very large, greatest height about 5.0 × shortest genal height. Thorax dark brown, scutum shiny with slightly paler lateral edges. Two pairs of dorsocentral bristles (anterior pair distinct, 0.4× length of posterior pair) separated by 5–6 rows of acrostichal setulae. Membrane around prosternum bare. Legs dark brown, foreleg paler. Fore femur with four large ventral preapical setae. Dorsal surface of mid tibia with a small pair of setae at ¼, a large anterior seta just above ½, and a large pair of setae at ¾. Ventral surface of male mid tibia with two rows of stout setae along apical third. Wing (Fig. 5A) short, extending only to midpoint of T3; strongly infuscate. All veins distinguishable. CS2 0.6–0.7 × CS3. Halter reduced to a small white nub. MALE ABDOMEN (Figs11B–C, 12).Dark brown,posterior edges of tergites sometimes slightly desclerotized. T2–5 and S2–4 uniformly long-setose with large posterolateral setae. S5 broad, rectangular, 0.9× length of S4, broadly desclerotized posteromedially, setae largely restricted to desclerotized area. Anterior flange of S6+7 not developed. Additional sclerites of genital pouch inconspicuously developed on anterior face of genital pouch (perpendicular to S5): sclerite A dark, fused to S6+7; sclerite B dark, arched into genital pouch; sclerite C apparently absent; sclerites D and E fused into a dark, posteriorly bilobed sclerite; sclerites F and G fused, dark with a rounded, preapical notch on left side; ring sclerite weakly sclerotized. Epandrium small, 0.7× length of S8, height 1.9× maximum length and 0.8× maximum width, densely setose; anal fissure small, ovoid; perianal pads weakly developed. Pseudocercus absent; halves of subepandrial sclerite broadly arched, thin, closely associated medially but not fused together. Cercus slightly sinuate in posterior view, curved with apex hooked, flattened and extended anteriorly. Hypandrium with anteromedial apodeme tapered and sinuate. Surstylus broad, subequal in length and height, subquadrate with dense ventral setae and a triangular anterobasal lobe. Postgonite with basal third boxy, apical two-thirds narrow, sinuate, apex emarginate with a slight anterior, preapical lobe. Phallapodeme narrow, slightly sinuate; basiphallus stout and connected to distiphallus by a neck-like distal part; distiphallus large with a downturned, tubular, sclerotized part and a large membranous, ventral part. FEMALE ABDOMEN. Female unknown. Distribution Neotropical: Ecuador. Remarks Sclerocoelus aduncus sp. nov. is easily identified by the strongly reduced wing (Fig. 5A) with a small alula (all other brachypterous species have a large alula), apically hooked male cercus, and small, subquadrate surstylus. Sclerocoelus aduncus has distinct cerci fused basally into a subanal plate but lacks separate pseudocerci or subcerci. These characters suggest that S. aduncus and the similarly brachypterous species S. flavus sp. nov., S. limbus sp. nov., and S. meridensis sp. nov. are among the few species in the genus that are basal to the large, derived groups characterized by separate subcerci and pseudocerci. All four species are associated with wet, green plant material in high elevation cloud forests or elfin forests in the Andes.
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 distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.003 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.032 | 0.025 |
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; both teacher heads agree on what is shown here.
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".