Cionus osmanlis, Košťál & Caldara, 2019

Košťál, Michael & Caldara, Roberto, 2019, Revision of Palaearctic species of the genus Cionus Clairville (Coleoptera: Curculionidae: Cionini), Zootaxa 4631 (1), pp. 1-144 : 18-19

4. Cionus osmanlis sp. n.

Figs 4 a–f.

http://zoobank.org/ urn:lsid:zoobank.org:act:18BF4A18-C98A-4036-A3AE-82C9866E747F

Type locality. Artvin ( Turkey) .

Type series. Holotype: 3.50 mm long, well-preserved male labeled “ 15.06.2002 NE Turkey Macahel Gecidi N Artvin leg. P. Bialooki / coll. Białooki / HOLOTYPUS Cionus osmanlis sp. n. M.Košťál et R.Caldara des. 2016 [printed red label]” ( UWCP) . Paratype: “J·gaz Dagh Paphlag Turc Staněk lgt. / PARATYPUS Cionus osmanlis sp. n. M.Košťál et R.Caldara des. 2016” (1 ♂ NMPC) .

Description. Male (holotype). Body subrotund. Head: rostrum stout, medium long (l/ w 4.4, Rl/Pl 1.41), black; in lateral view clearly evenly curved, same width from base to antennal insertion, shortly beyond antennal insertion narrower, apically bluntly tapered; in dorsal view narrowest at base, slightly broadened to apex, basal part not laterally constricted, apical part shortly beyond antennal insertion moderately dorsoventrally flattened; from base to antennal insertion with very dense to confluent rugulose punctures, apical part, especially on sides, semi-densely covered with round punctures, at antennal insertion finely longitudinally ribbed; basal part with mostly backwardly oriented, recumbent whitish small thin seta-like scales, apical part with long, forwardly oriented, suberect yellowish seta-like scales. Head between eyes narrow, about 0.3 rostrum width at base. Eyes large, very slightly rounded to flat, not protruding from head outline. Antennae reddish-brown, with very slightly darkened club, inserted at 0.7 of rostrum length; funicle of 0.7 scape length, segment 1 wider than segment 2, as long as segment 2, segment 1 more than twice as long as wide, segment 2 3 × as long as wide, segment 3 subquadrate, segments 4–5 transverse; club oblong suboval, 2.2 × as long as wide, of approximately 0.9 funicle length, completely covered with recumbent, densely arranged, brown tiny hairs and sparsely distributed, erect, dark long sensilla. Pronotum: black, markedly wider than long (Pl/Pw 0.60), densely finely, evenly covered with small round punctures; on sides densely covered with subrecumbent, forwardly and medially oriented reddish-brown, elongate (l/w 4–6) scales, at midline with very sparse broad scales, longitudinal area in basal part narrowed forwardly, then slightly broadened to anterior margin, anteriorly with small recumbent, forwardly oriented gray to yellowish scales, lateral scaled pronotal area with small bare “window”; widest at base, subconically narrowed to 1/2 of pronotal length, then very moderately constricted and narrowed to anterior margin, in lateral view in basal half flat on disc, then slightly falling to anterior margin. Prosternum: anterior margin with deep, nearly rectangularly incised emargination, bounded by sharp elevated margins, not reaching coxae. Scutellum: broadly subtriangular, blunt at apex, at posterior margin with comb of densely arranged, backwardly oriented yellowish elongate scales. Elytra: black, in basal 2/3 evenly, in apical third broadly rounded, short (El/Ew 1.09), widest shortly before mid-length, at base markedly wider than pronotum (Ew/Pw 1.77), humeri clearly but not strikingly prominent, with shallow posthumeral impression; very slightly convex on disc; interstria 1 beyond 1/4 of medial length distinctly, before apex slightly broadened, interstria 2 at same lengths narrowed and markedly constricted laterally, interstria 3 slightly constricted laterally encompassing large dorsal elongate black tomentous and smaller preapical elongate maculae, dorsal macula at posterior, preapical macula at anterior margin with relatively large patch formed by densely arranged overlapping whitish-yellow scales, odd interstriae markedly convex and clearly broader than even ones; odd interstriae with unevenly large, alternating light brownish and black velvet-like patches; striae shallow, formed by irregular single rows of round punctures; entire surface excepting described pattern covered with recumbent gray, light brown and blackish elongate (l/w 3–5) scales, sparsely distributed and leaving integument partially visible. Venter: relatively densely covered with subrecumbent, gray thin long hairs, lateral parts of meso- and metasternum, metepisternum and both epimera covered with densely arranged whitish and reddish elongate scales, most lateral parts of ventrites 3 and 4 with small patches of whitish scales; mesosternal process very short, broad, blunt at apex; metasternum concave, punctured; ventrite 1 with relatively deep, ventrite 2 with shallow medial impression, punctured, with suberect, backwardly oriented, long gray hairs; ventrite 1 1.7 × as long as ventrite 2, ventrites 1–2 combined 5.1 × as long as ventrites 3–4 combined, ventrites 3–4 combined of 0.7 length of ventrite 5. Legs: femora and tibiae brown, tarsi light brown; profemora with very small teeth emphasized by several erect scales, meso- and metafemora with large triangular sharp teeth; femora and tibiae covered with unevenly distributed, subrecumbent, whitish, reddish and blackish scales, clustered especially on profemora into feebly distinct transverse bands, tarsi including onychia with whitish suberect hairs; onychia of anterior legs of normal length, maximally of 0.8 length of tarsomeres 1–3 combined; lateral protarsal claws of half length of medial ones, medial claws of meso- and metatarsi only slightly shorter than lateral ones. Penis: Figs 4 d–f, its body broadly pointed at apex.

Female. Unknown.

Variability. The paratype (3.47 mm long) differs from the holotype by lighter antennae and tarsi, and more pointed apex of the body of penis.

Diagnosis. This species is recognizable by smaller size, stout and curved rostrum, clearly vaulted odd interstriae, especially at elytral base, not elongate onychia in males, and penis shape.

Comparative notes. Cionus osmanlis is most closely related to C. tuberculosus , from which it differs by not elongate antennal club, more curved rostrum, brown femora and tibiae, shorter protarsal onychia in male, and broader and pointed body of penis.

Biological notes. Biology unknown.

Distribution. North-eastern and northern (Paphlagonia) Turkey.

Etymology. Derived from the genitive of a Latin name of a Turkish inhabitant of Ottoman empire.

Non-type specimens examined. None.

Figures

FIGURES 3–4. FIGURE 3. Cionus tuberculosus. a: body in dorsal view (male), b: body in lateral view (male), c: rostrum in lateral view (female), d: penis in ventral view, e: penis in lateral view, f: apex of penis in dorsal view. Not to scale. FIGURE 4. Cionus osmanlis sp. n. a: body in dorsal view (male), b: body in lateral view (male), c: penis in ventral view, d: penis in lateral view, e: apex of penis in dorsal view. Not to scale.