Sclerocoelus alpinus Kuwahara, Marshall & Paiero, 2025, sp. nov.
Bibliographic record
Abstract
Sclerocoelus alpinus sp. nov. urn:lsid:zoobank.org:act: F98C8FAD-D3B4-4AB9-9AB0-E3ECBE0D0F02 Figs 5B, 13–15 Etymology This name reflects the high-altitude habitats from which this species has been collected (from the Latin ‘ alpinus ’, meaning ‘alpine (of/relating to/inhabiting mountains)’). Material examined Holotype ECUADOR • ♂; Pichincha, 10 km NW of Quito, Valley near Hosteria San Jorge; 3050 m a.s.l.; 23 Oct. 1999; S.A. Marshall leg.; stream debris; QCAZ debu00111277. Paratypes ECUADOR – Carchi • 1 ♂; Guandera Forest Reserve, 15 km E of San Gabriel; 3400 m a.s.l.; 1 Nov. 1999; S.A. Marshall leg.; hand; QCAZ • 1 ♂; same data as for preceding; sweep forest trail; DEBU • 2 ♂♂, 3 ♀♀; Paramo El Angel, 24 km NW of El Angel; 3800 m a.s.l.; 3 Nov. 1999; S.A. Marshall leg.; dung traps in moss; QCAZ. – Loja • 1 ♂; Podocarpus National Park, Cajanuma, Bosque Nublado trail; 3000 m a.s.l.; 19 Feb–5 Mar. 2009; M. Pollet and A. De Braekeleer leg.; Malaise trap; debu00194781 / MYRO919-21 sequenced for CO1-5’; RBINS. – Pichincha • 7 ♂♂, 11 ♀♀; same data as for holotype; QCAZ • 2 ♀♀; Cotopaxi National Park, Quebrada Mishahuaycu; 3600 m a.s.l.; 25 Oct. 1999; S.A. Marshall leg.; under streamside vegetation; DEBU • 1 ♂; 10 km NW of Quito, valley near Hosteria San Jorge; 3050 m a.s.l.; 22–25 Oct. 1999; S.A. Marshall leg.; creek bed, pan traps; QCAZ • 1 ♂, 2 ♀♀; same data as for preceding; 23 Oct. 1999; stream valley sweeping; DEBU. VENEZUELA – Mérida • 4 ♂♂; 6 km S of Azulita, near road; 3 May 1988; S.A. Marshall leg.; DEBU • 5 ♂♂, 5 ♀♀; S Bolivar National Park, near La Aguada; 3000 m a.s.l.; 13 May 1981; L. Masner leg.; DEBU. – Trujillo • 2 ♂♂, 4 ♀♀; Boconó, road to Guaramacal; 2570 m a.s.l.; 2 Mar. 1996; S.A. Marshall leg.; creek bed; DEBU • 2 ♀♀; Boconó-Guaramacal Road; 3000 m a.s.l.; 3 Mar. 1995; S.A. Marshall leg.; wet debris along spring; DEBU. Description BODY (Fig. 13A). Length 2.6–4.1 mm. Head dark brown, lower third to half of frons and antenna orange; face and gena orange-brown. Frontal width 2.4–2.5 × frontal height. Three pairs of strong interfrontal bristles surmounting a very fine fourth pair; anterior orbital 0.6–0.7× length of posterior. Palpus pale brown. Eye large, greatest height about 3.5× shortest genal height. Thorax dark brown, scutum with slightly paler lateral edges; postpronotum and anterior edge of anepisternum pale. Two pairs of dorsocentral bristles (anterior pair only slightly larger than surrounding acrostichal setulae) separated by 6–7 rows of acrostichal setulae. Membrane around prosternum bare. Legs brown, foreleg paler. Fore femur with four large ventral preapical setae. Dorsal surface of mid tibia with a small pair of setae at about ⅓, a large anterior seta at ½ and a large pair of setae at about ¾. Ventral surface of male mid tibia with two rows of stout setae along apical third. Wing (Fig. 5B) slightly infuscate. CS2 subequal to CS3. Halter brown. MALE ABDOMEN (Figs 13B–C, 14). Dark brown, posterior edges of tergites sometimes slightly desclerotized. T2–5 and S2–4 uniformly long-setose with large posterolateral setae. S5 large, rectangular, 1.2× length of S4, uniformly long-setose with a pair of long posteromedial setae surrounded by a broad, pale, densely setulose strip. Anterior flange of S6+7 not developed. Sclerite A large, pale, densely setulose; sclerite B long, arched; sclerite C absent; sclerite D large, asymmetrically triangular; sclerites E and F fused into a large, triangular sheet wrapping around right side of sclerite A; sclerite G large, pale; ring sclerite weakly sclerotized. Epandrium small, wedge-shaped, 0.6× length of S8, height 1.4 × maximum length and 0.8 × maximum width, uniformly long-setose; anal fissure moderate, rounded; perianal pads weakly developed. Pseudocercus and subanal plate absent; halves of subepandrial sclerite weakly arched, medially fused. Subcercus slender, curved and blade-like distally; basally with a broad outer lobe bearing three large setae. Hypandrium with anteromedial apodeme long and straight, hypandrial arms thick and arched. Surstylus stout, subquadrate with long setae (longest on anterior and ventral edges) and a triangular, anteroapical inner lobe. Postgonite short, basal half broad, apical half strongly tapered and gently curved. Phallapodeme long, slightly curved; basiphallus elongate, slightly curved with a stout, upcurved epiphallus; distiphallus short, membranous with a strongly bent dorsal sclerite, a broad ventral sclerite, and a pair of sinuate lateral sclerites; dorsoapical membrane transversely rugose. FEMALE ABDOMEN (Fig. 15). T7 broad, simple; T8 divided into a pale, almost entirely membranous dorsal sclerite and two large, dark, lateral sclerites, posterolateral corners slightly expanded but broadly emarginate. Epiproct large, subtriangular, strongly tapered in apical third, anteromedially desclerotized, and entirely setulose. Cercus elongate, apically pointed with long apical, dorsal, and apicoventral setae. S7 subtriangular/T-shaped, desclerotized along posterior margin with four large posterior setae; S8 entirely membranous. Hypoproct entirely setulose with several small dorsolateral setae. Three spermathecae, bulb stout, spherical, largely smooth with shallow invaginations basally and subapically, both with a small, finger-like, central process. Distribution Neotropical: Ecuador, Venezuela. Remarks Sclerocoelus alpinus sp. nov. can be separated by from other species of Sclerocoelus by the long male S5, relatively small male genitalia, strongly tapered postgonite, and Y- or T-shaped female S7. Sclerocoelus alpinus is among several congeners associated with wet vegetation, especially along waterways, in the high Andes. We have collected it repeatedly in wet vegetation on the margins of alpine streams at altitudes from 2500 to 3400 m a.s.l. The elongate, ventrally narrow and curved subcercus of this species resembles that of S. inornatus sp. nov. but, unlike S. inornatus, S. alpinus has a complex genital pouch with multiple discrete sclerites as in the related S. altus sp. nov., S. puyensis sp. nov., and S. punensis sp. nov.
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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 | 0.000 | 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 | 0.002 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.023 | 0.007 |
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".