Rovnoleptochromus ableptonoides Jałoszyński & Perkovsky, 2016, sp. n.
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| author | Jałoszyński, Paweł Perkovsky, Evgeny |
| author_facet | Jałoszyński, Paweł Perkovsky, Evgeny |
| contents | <p><b>† <i>Rovnoleptochromus ableptonoides</i> sp. n.</b></p><p>(Figs 1, 39–48)</p><p><b>Type material. Holotype: Late Eocene of Europe, Rovno amber:</b> sex unknown; inclusion in elongate, L-shaped piece of amber 17 mm long (Fig. 1), collection number K-27418 (SIZK).</p><p><b>Diagnosis.</b> This is the only species of <i>Rovnoleptochromus</i> and can be identified on the basis of the generic diagnosis.</p><p><b>Description.</b> Body (Figs 39–42, 44–45, 47–48) strongly elongate and flatten, dark brown; BL 2.10 mm.</p><p>Head (Figs 43, 46, 48) broadest at large eyes, HL 0.35 mm, HW 0.38 mm; vertex and frons seem confluent (but dorsally poorly visible); tempora longer than eyes; supraantennal tubercles indistinct. Punctures on head unclear, setae only partly visible (Fig. 46), sparse, moderately long and erect. Antennae (Figs 39–46, 48) long and slender, AnL about 0.98 mm, scape longer than antennomeres II–IV combined, pedicel less than half as long as scape, distinctly longer than antennomere III, all antennomeres elongate, flagellomeres sparsely covered with very long and suberect setae (Figs 44, 46).</p><p>Pronotum (Figs 41, 47) partly distorted; PL 0.53 mm, PW 0.44 mm; pronotal disc broadest near anterior fifth and strongly narrowing posteriorly; anterior pronotal margin broadly rounded, laterally confluent with lateral margins, sides strongly rounded in anterior third, subparallel in posterior third. Punctures on disc (Fig. 47) small but distinct, separated by spaces about as wide as two diameters of puncture; setae (Fig. 47) sparse, short and suberect.</p><p>Elytra (Figs 39–41, 44–45, 47) elongate oval, strongly flattened; EL 1,23 mm, EW 0.50 mm, EI 2.45; humeri weakly marked, sides of elytra nearly parallel in anterior third, weakly convergent posteriorly behind middle, rounded at apices; dorsal rows of pits distinct and deep, intervals between striae with 2–3 irregular rows of short suberect setae (Figs 44, 47). Hind wings present.</p><p>Legs (Figs 39–40, 42, 44–45, 48) long and slender.</p><p><b>Etymology.</b> The name <i>ableptonoides</i> was chosen to underline the significance of the median metaventral longitudinal carina, a character that <i>Rovnoleptochromus</i> shares with <i>Ablepton</i> and for the first time found in another genus of Mastigitae.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_5681733 |
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| publishDate | 2016 |
| publisher | Zenodo |
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| spellingShingle | Rovnoleptochromus ableptonoides Jałoszyński & Perkovsky, 2016, sp. n. Jałoszyński, Paweł Perkovsky, Evgeny Biodiversity Taxonomy Animalia Arthropoda Insecta Coleoptera Staphylinidae Rovnoleptochromus Rovnoleptochromus ableptonoides <p><b>† <i>Rovnoleptochromus ableptonoides</i> sp. n.</b></p><p>(Figs 1, 39–48)</p><p><b>Type material. Holotype: Late Eocene of Europe, Rovno amber:</b> sex unknown; inclusion in elongate, L-shaped piece of amber 17 mm long (Fig. 1), collection number K-27418 (SIZK).</p><p><b>Diagnosis.</b> This is the only species of <i>Rovnoleptochromus</i> and can be identified on the basis of the generic diagnosis.</p><p><b>Description.</b> Body (Figs 39–42, 44–45, 47–48) strongly elongate and flatten, dark brown; BL 2.10 mm.</p><p>Head (Figs 43, 46, 48) broadest at large eyes, HL 0.35 mm, HW 0.38 mm; vertex and frons seem confluent (but dorsally poorly visible); tempora longer than eyes; supraantennal tubercles indistinct. Punctures on head unclear, setae only partly visible (Fig. 46), sparse, moderately long and erect. Antennae (Figs 39–46, 48) long and slender, AnL about 0.98 mm, scape longer than antennomeres II–IV combined, pedicel less than half as long as scape, distinctly longer than antennomere III, all antennomeres elongate, flagellomeres sparsely covered with very long and suberect setae (Figs 44, 46).</p><p>Pronotum (Figs 41, 47) partly distorted; PL 0.53 mm, PW 0.44 mm; pronotal disc broadest near anterior fifth and strongly narrowing posteriorly; anterior pronotal margin broadly rounded, laterally confluent with lateral margins, sides strongly rounded in anterior third, subparallel in posterior third. Punctures on disc (Fig. 47) small but distinct, separated by spaces about as wide as two diameters of puncture; setae (Fig. 47) sparse, short and suberect.</p><p>Elytra (Figs 39–41, 44–45, 47) elongate oval, strongly flattened; EL 1,23 mm, EW 0.50 mm, EI 2.45; humeri weakly marked, sides of elytra nearly parallel in anterior third, weakly convergent posteriorly behind middle, rounded at apices; dorsal rows of pits distinct and deep, intervals between striae with 2–3 irregular rows of short suberect setae (Figs 44, 47). Hind wings present.</p><p>Legs (Figs 39–40, 42, 44–45, 48) long and slender.</p><p><b>Etymology.</b> The name <i>ableptonoides</i> was chosen to underline the significance of the median metaventral longitudinal carina, a character that <i>Rovnoleptochromus</i> shares with <i>Ablepton</i> and for the first time found in another genus of Mastigitae.</p> |
| title | Rovnoleptochromus ableptonoides Jałoszyński & Perkovsky, 2016, sp. n. |
| topic | Biodiversity Taxonomy Animalia Arthropoda Insecta Coleoptera Staphylinidae Rovnoleptochromus Rovnoleptochromus ableptonoides |
| url | https://doi.org/10.5281/zenodo.5681733 |