Derelomus setifer Haran & Benoit & Dufaÿ & Procheş & Kergoat 2025, sp. nov.
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| author | Haran, Julien M. Benoit, Laure Dufaÿ, Mathilde Procheş, Serban Kergoat, Gael J. |
| author_facet | Haran, Julien M. Benoit, Laure Dufaÿ, Mathilde Procheş, Serban Kergoat, Gael J. |
| contents | <p><b><i>Derelomus setifer</i> Haran sp. nov.</b></p><p>urn:lsid:zoobank.org:act: 2011F57B-74C1-4204-B93E-4560240AD0E5</p><p>Fig. 11A–D</p><p><b>Diagnosis</b></p><p><i>Derelomus setifer</i> sp. nov. can be distinguished from other species of the genus by the combination of appendiculate claws, a rostrum longer than the pronotum in lateral view, the metanepisterna with a dense vestiture of white scales and the erect setae on the elytra. It is closest to <i>D. prochesi</i> sp. nov., but the latter species only bears small recumbent setae on the elytra. The penis of both species is diagnostic (Fig. 11C, G).</p><p><b>Etymology</b></p><p>The species name refers to the erect setae on elytra of this species. This feature is apparently unique in the genus <i>Derelomus</i>.</p><p><b>Material examined</b></p><p><b>Holotype</b></p><p>REPUBLIC OF SOUTH AFRICA • ♂; “S. Afr; Tvl. [Mpumalanga Province] Nelshoogte; Forest Station; 25.50S – 30.50E [25°50′00″ S 30°50′00″ E]” “ 18.ii.1987; E-Y:2449; White flow. creeper; Leg. Endrödy-Younga ” “Holotype; <i>Derelomus setifer</i>; Haran 2025”; TMSA.</p><p><b>Paratypes</b></p><p>REPUBLIC OF SOUTH AFRICA – <b>Mpumalanga Province</b> • 1 ♀; Nelshoogte, Forest Station; 25°50′00″ S, 30°50′00″ E; 18 Feb. 1987; Endrödy-Younga coll.; on white flower creeper; E-Y:2449; TMSA • 1 ♀; same collection data as for preceding; CBGP. – <b>Eastern Cape Province</b> • 1 ♂; Queenstown [Komani]; 31°54′03″ S, 26°54′40″ E; 16 Jan.–10 Feb. 1923; 1066 m a.s.l.; R.E. Turner coll.; British Museum 1923-140; NHMUK.</p><p><b>Description</b> (♂)</p><p>MEASUREMENTS. Body length 2.2 mm.</p><p>COLOR. Body integument pale brown; vestiture of elytra consists of row of white setae alternately erect and recumbent on each interstria, striae as long as width of interstriae; each puncture of striae with short recumbent seta, shorter than width of interstriae; setae not concealing the integument.</p><p>HEAD. Rostrum longer than pronotum in lateral view (1.4×), moderately and regularly downcurved; in dorsal view 5× as long as wide, integument densely punctate, covered with short suberect whitish setae oriented transversally; antennae inserted near apical 1/5 of length; head capsule coarsely punctate in dorsal view, with contiguous suberect whitish setae oriented toward centre of forehead; eyes convex, exceeding lateral curve of head capsule in dorsal view; antennal funicle with first segment 2× as long as wide, equal in length to segments 2–4 together, 3–5 isodiametric, 6–7 transverse.</p><p>PRONOTUM. Wider than long (W:L ratio: 1.25), widest near middle of length, 0.75 × as wide there as elytra at humeral angles, lateral carina forming an obtuse tooth in middle of length; sides abruptly converging in apical ⅓, apical constriction shallow, hardly visible; integument with large circular punctures, space between punctures smooth, shiny, as wide as or wider than diameter of punctures near scutellar shield, narrower on the rest of pronotum; setae suberect, downcurved, oriented toward scutellar shield.</p><p>METATHORAX. Metanepisterna with dense vestiture of white scales.</p><p>ELYTRA. Longer than wide (W: L ratio: 0.62); sides slightly convex, widest near middle of length; humeri raised; apex jointly rounded, notched at apex of suture; striae with punctures as wide as or slightly narrower than interstriae; interstriae slightly convex, 9 raised into carina; scutellar shield triangular, bearing recumbent setae.</p><p>ABDOMEN. Underside covered with minute recumbent whitish setae, not contiguous. Stridulatory plate with lines of 7 granules ¾× as long as median line from base. Central sclerotized area regularly rounded laterally.</p><p>LEGS. Profemora moderately thickened near middle of length; protibiae with external margin straight, internal slightly concave in apical ½, metatibiae slightly curved outward in apical half; claws appendiculate.</p><p>TERMINALIA. Body of penis elongate (W: L ratio: 0.20), more than 2× as long as apodemes; sides straight in dorsal view, widest at base, converging regularly apicad, apex rounded; in lateral view curvature stronger in basal ⅓ of length, width narrowing regularly from middle of length to apex; apex curved upward (Fig. 11C).</p><p><b>Sexual dimorphism</b></p><p>Female can be distinguished from males by the rostrum which is narrower in dorsal view (6–7× as long as wide in females, 5× as long as wide in males).</p><p><b>Life history</b></p><p>Specimens were collected on an unidentified creeper with white flowers (Endrödy-Younga obs.). Adults were collected in January and February.</p><p><b>Distribution</b></p><p><i>Derelomus setifer</i> sp. nov. is known from the Eastern Cape and Mpumalanga provinces in the Republic of South Africa.</p><p><b>Remarks</b></p><p>Elytral striae 2–3 and 4–5 are merged in the holotype. This is obviously a teratogenic case not representative of the species and as such not reported in the description.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_17251867 |
| institution | Zenodo |
| language | |
| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Derelomus setifer Haran & Benoit & Dufaÿ & Procheş & Kergoat 2025, sp. nov. Haran, Julien M. Benoit, Laure Dufaÿ, Mathilde Procheş, Serban Kergoat, Gael J. Biodiversity Taxonomy Animalia Arthropoda Insecta Coleoptera Curculionidae Derelomus Derelomus setifer <p><b><i>Derelomus setifer</i> Haran sp. nov.</b></p><p>urn:lsid:zoobank.org:act: 2011F57B-74C1-4204-B93E-4560240AD0E5</p><p>Fig. 11A–D</p><p><b>Diagnosis</b></p><p><i>Derelomus setifer</i> sp. nov. can be distinguished from other species of the genus by the combination of appendiculate claws, a rostrum longer than the pronotum in lateral view, the metanepisterna with a dense vestiture of white scales and the erect setae on the elytra. It is closest to <i>D. prochesi</i> sp. nov., but the latter species only bears small recumbent setae on the elytra. The penis of both species is diagnostic (Fig. 11C, G).</p><p><b>Etymology</b></p><p>The species name refers to the erect setae on elytra of this species. This feature is apparently unique in the genus <i>Derelomus</i>.</p><p><b>Material examined</b></p><p><b>Holotype</b></p><p>REPUBLIC OF SOUTH AFRICA • ♂; “S. Afr; Tvl. [Mpumalanga Province] Nelshoogte; Forest Station; 25.50S – 30.50E [25°50′00″ S 30°50′00″ E]” “ 18.ii.1987; E-Y:2449; White flow. creeper; Leg. Endrödy-Younga ” “Holotype; <i>Derelomus setifer</i>; Haran 2025”; TMSA.</p><p><b>Paratypes</b></p><p>REPUBLIC OF SOUTH AFRICA – <b>Mpumalanga Province</b> • 1 ♀; Nelshoogte, Forest Station; 25°50′00″ S, 30°50′00″ E; 18 Feb. 1987; Endrödy-Younga coll.; on white flower creeper; E-Y:2449; TMSA • 1 ♀; same collection data as for preceding; CBGP. – <b>Eastern Cape Province</b> • 1 ♂; Queenstown [Komani]; 31°54′03″ S, 26°54′40″ E; 16 Jan.–10 Feb. 1923; 1066 m a.s.l.; R.E. Turner coll.; British Museum 1923-140; NHMUK.</p><p><b>Description</b> (♂)</p><p>MEASUREMENTS. Body length 2.2 mm.</p><p>COLOR. Body integument pale brown; vestiture of elytra consists of row of white setae alternately erect and recumbent on each interstria, striae as long as width of interstriae; each puncture of striae with short recumbent seta, shorter than width of interstriae; setae not concealing the integument.</p><p>HEAD. Rostrum longer than pronotum in lateral view (1.4×), moderately and regularly downcurved; in dorsal view 5× as long as wide, integument densely punctate, covered with short suberect whitish setae oriented transversally; antennae inserted near apical 1/5 of length; head capsule coarsely punctate in dorsal view, with contiguous suberect whitish setae oriented toward centre of forehead; eyes convex, exceeding lateral curve of head capsule in dorsal view; antennal funicle with first segment 2× as long as wide, equal in length to segments 2–4 together, 3–5 isodiametric, 6–7 transverse.</p><p>PRONOTUM. Wider than long (W:L ratio: 1.25), widest near middle of length, 0.75 × as wide there as elytra at humeral angles, lateral carina forming an obtuse tooth in middle of length; sides abruptly converging in apical ⅓, apical constriction shallow, hardly visible; integument with large circular punctures, space between punctures smooth, shiny, as wide as or wider than diameter of punctures near scutellar shield, narrower on the rest of pronotum; setae suberect, downcurved, oriented toward scutellar shield.</p><p>METATHORAX. Metanepisterna with dense vestiture of white scales.</p><p>ELYTRA. Longer than wide (W: L ratio: 0.62); sides slightly convex, widest near middle of length; humeri raised; apex jointly rounded, notched at apex of suture; striae with punctures as wide as or slightly narrower than interstriae; interstriae slightly convex, 9 raised into carina; scutellar shield triangular, bearing recumbent setae.</p><p>ABDOMEN. Underside covered with minute recumbent whitish setae, not contiguous. Stridulatory plate with lines of 7 granules ¾× as long as median line from base. Central sclerotized area regularly rounded laterally.</p><p>LEGS. Profemora moderately thickened near middle of length; protibiae with external margin straight, internal slightly concave in apical ½, metatibiae slightly curved outward in apical half; claws appendiculate.</p><p>TERMINALIA. Body of penis elongate (W: L ratio: 0.20), more than 2× as long as apodemes; sides straight in dorsal view, widest at base, converging regularly apicad, apex rounded; in lateral view curvature stronger in basal ⅓ of length, width narrowing regularly from middle of length to apex; apex curved upward (Fig. 11C).</p><p><b>Sexual dimorphism</b></p><p>Female can be distinguished from males by the rostrum which is narrower in dorsal view (6–7× as long as wide in females, 5× as long as wide in males).</p><p><b>Life history</b></p><p>Specimens were collected on an unidentified creeper with white flowers (Endrödy-Younga obs.). Adults were collected in January and February.</p><p><b>Distribution</b></p><p><i>Derelomus setifer</i> sp. nov. is known from the Eastern Cape and Mpumalanga provinces in the Republic of South Africa.</p><p><b>Remarks</b></p><p>Elytral striae 2–3 and 4–5 are merged in the holotype. This is obviously a teratogenic case not representative of the species and as such not reported in the description.</p> |
| title | Derelomus setifer Haran & Benoit & Dufaÿ & Procheş & Kergoat 2025, sp. nov. |
| topic | Biodiversity Taxonomy Animalia Arthropoda Insecta Coleoptera Curculionidae Derelomus Derelomus setifer |
| url | https://doi.org/10.5281/zenodo.17251867 |