Sweltsa lyrata Stark & Baumann 2018, sp. n.
Bibliographic record
Abstract
Sweltsa lyrata, sp. n. (Figs. 16, 18-29, 38-39, 43, 46) http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org: TaxonName:502536 Material examined. Holotype ♂, 3♂, 1♀ paratypes, Washington, Skagit Co., Friday Creek, Prairie Rd, 5 miles N of Burlington, 16 April 1967, K.E. Vander Mey (holotype, United States National Museum, paratypes BYU). Additional paratypes: CANADA: Alberta: Cameron Creek, Cameron Lake, Waterton Lakes National Park, 19 July1965, A. R. Gaufin, 26♂, 30♀ (BYU). British Columbia: Duhamel Creek, Six Mile Rd, 30 May 2010, B. Stark, R. W. Baumann, 2♂, 1♀ (BPSC). Yukon: Klondike River, Dempster Hwy, 23 June 1996, J.C. Abbott, K.W. Stewart, 8♂, 7♀ (BPSC). Mayo River, Hwy 11, 63° 36’ N, - 135° 55’ W, 24 June 1996, K.W. Stewart, J.C. Abbott, 5♂, 3♀ (BYU). McQuesten River, Hwy 2, 63°33’15.88” N, - 137°24’37.88” W, 24 June 1996, K.W. Stewart, J.C. Abbott, 3♂, 6♀ (BYU). Ogilvie River, Dempster Hwy, 65°21’38.82” N, - 138°18’20.73” W, 21 June 1996, K.W. Stewart, J.C. Abbott, 17♂, 5♀ (BYU). UNITED STATES: Idaho: Bonner Co., Pack River, Pack River Rd, 26 May 2010, B. Stark, R. W. Baumann, 5♂, 8♀ (BPSC). Montana: Gallatin Co., Duck Creek, 8 miles N West Yellowstone, 9 June 1987, B.C. Kondratieff, 1♂, 2♀ (CSUIC). Gallatin River, Squaw Creek Rd, 10 July 1999, B. Stark, L. Stark, 1♂, 1♀ (BPSC). Mineral Co., St. Regis River, Little Joe Rd, St. Regis, 25 May 2010, B. Stark, R. W. Baumann, 28♂, 8♀ (BPSC). St. Regis River, Riverside, 11 June 1969, A. R. Gaufin, 4♂, 7♀ (BYU). Trout Creek, Trout Creek Campground, 4 June 2010, B. Stark, R. W. Baumann, 23♂, 6♀ (BPSC). Washington: Okanogan Co., Buck Creek, 20 miles N of Winthrop, 9 June 1995, MacKenzie, 4♂, 1♀ (BYU). Pend Oreille Co. Sullivan Creek, below Sullivan Lake, 2 June 2010, B. Stark, R. W. Baumann, 35♂, 43♀ (BPSC). Whatcom Co., Padden Creek, 33 rd Street, Bellingham, 27 April 1994, Graham, MacKenzie, 6♂, 1♀ (BYU). Adult habitus. Male forewing length 6.2-6.7 mm; female 7.0- 7.5 mm. Similar to S. coloradensis with hieroglyphic-like markings on head and pronotum (Fig. 43). However considerable variation occurs in the pigmentation patterns of individuals within and between sites. Our impression is that the three species overlap in pigment pattern. Male epiproct (n=14). Maximum width 310-410 μm, length 360-470 μm. Base conspicuously narrowed at stem and epiproct relatively wide across body at lateral projections giving a distinct stalked appearance (Figs.18-29). Shoulders scarcely, or not at all projecting beyond base of hook (Fig. 46). Aedeagus (n=1). Length from base to base of apical finger-like lobes 466 μm, width across eye-like lobes to apices of lateral lobes 525 μm. Lateral lobes broad basally near outer margins of eye-like lobes; margins of lateral lobes strongly convergent, forming an overall football-shape to the aedeagal body (Fig. 16). Female terminalia. Posterior margin of subgenital plate truncate, overlapping that of S. coloradensis in shape (Figs. 38-39). Larva. Unknown. Etymology. The species name refers to the lyre- shaped dorsal aspect of the epiproct of this species. Diagnosis and distribution. Sweltsa lyrata is recognized by the prominent lateral projections, small apical projections and abruptly narrowed epiproct stem that give the epiproct a lyre-like shape. Males of this species are distinguished from those of S. mogollonica by the enlarged lateral lobes of the epiproct (Figs.17-28), and from S. coloradensis by the prominent apical lobes of the epiproct in that species (Figs.2-13). The aedeagus of this species (based on one specimen) is shorter than both additional species of the complex, and has the lateral lobes wider and more pointed at their apex. Populations exhibiting the S. lyrata epiproct type are known from the Northern Rocky Mountains including sites in Alberta, British Columbia and Yukon Territory and adjacent areas in Washington, Montana and Idaho.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.003 | 0.001 |
| Scholarly communication | 0.001 | 0.003 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.040 | 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; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".