Cionus maurus, 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 : 35-36

16. Cionus maurus sp. n.

Figs 16 a–f.

http://zoobank.org/ urn:lsid:zoobank.org:act:1461FEA2-9EAB-490A-A1DE-5112CB6FC212

Type locality. Azrou ( Morocco) .

Type series. Holotype: completely preserved, 4.98 mm long dissected male labeled: “Azrou Atlas 17.4.33 / coll. Mus. Frey / HOLOTYPUS Cionus maurus sp. n. M.Košťál et R.Caldara des. 2017 [printed red label]” ( NHMB) . Paratypes (same designating label except for “ PARATYPUS ”): same labeling as holotype (1 ♂ NHMB) ; “ Azrou At- las 17.4.33 / coll. Mus. Frey ” (1 ♂ NHMB) ; “ Marocco , Knitra, Mamora, 20. 6. 26 Lindberg / Brit. Mus. 1951-318. / Cionus schöhrerri Bris. Harald Lindb. det. / coll. Mus. Berlin / ” (1 ♂ ZMHB) ; “Under stones / MOROCCO Near Imlil 45 km. S. Marrakech. c. 4000ft. I. v.1961 / 1043- 4 P. N.Lawrence B.M. 1961-328 / coll. London NHM-gen.” (1 ♂, 1 ♀ BMNH) ; “ Cedar forest – sweeping / MOROCCO Mougouyou 35km. S.W. Ifrane 6,500ft. 17.v.1961. / 1211. P.N. Lawrence B.M. 1961-328 / coll London NHM-gen.” (1 ♀ BMNH) ; “Maroc Forêt de la Mamora 23. III. 1961 Lindberg / Mus.Zool.Helsinki Loan No. C 08–556” (1 ♀ MZHF) ; “ Maroc Mehdina W de Kenitra 17. III. 1961 Meinander / Mus.Zool.Helsinki Loan No. C 08 - 563” (1 ♀ MZHF) ; “1897 Maroc / longicollis ex Vaucher” (1 ♂ MSNM) ; “ Spanien : Madrid V. 1969 leg. Hückpohl / Cionus sp. aff. hortulanus Dieckmann det. / coll. Behne ” (1 ♀ BN) ; “E–Oviedo–S. ra Cuera–Arangas m 400 – 10.6.91 Meregalli leg / coll. Meregalli ” (4 ♂♂ ME) ; “E–Orense– Poboa Trives – 5. VI. 91 Alto Cerdeira m900 Meregalli / coll. Meregalli ” (1 ♂ ME) ; “ Andalousie : Lanjaron (prov. Granada) 26.IV–18.V.1961 G.Fagel / R. I. Sc. N. B. I. G. 22.544 / coll. Mus. Tervuren ” (1 ♂ RMCA) ; “ Hisp. Madrid Valdemorillo 11.7. 78 W. Gfeller leg. / Cionus longicollis Br. Voříšek det. 1978 / BMNH {E} 2010-26 O. Voříšek ” (1 ♂ BMNH) ; “ Piedralaves , Hi. S.de Gredos. 18.5.34 C.Koch ” (1 ♀ MSNM) ; “Hispan / ab. Tieffenbachi / MWi” (1 ♂ NHMW) ; “ Spanien : Madrid, V.1 969 leg. Hüdepohl / Cionus sp. af. hortulanus Dieckmann det.” (1 ♂ BN) .

Description. Male (holotype). Body considerably stout, round. Head: rostrum moderately slender, medium long (l/ w 4.9, Rl/Pl 1.09), black, very close to apex dark brown; in lateral view slightly evenly curved, very slightly narrowed to antennal insertion, then moderately tapered to apex; in dorsal view moderately broadened to antennal insertion, then almost indistinctly narrowed to apex, basal part constricted laterally, apical part dorsoventrally flattened; basal part very densely to confluently longitudinally punctured to ribbed, apical part densely punctured; scaliness as in C. hortulanus . Head between eyes and eyes as in C. hortulanus . Antennae as in C. hortulanus . Pronotum: dark brown to black, somewhat wider than long (Pl/Pw 0.64); punctation, scales and shape as in C. hortulanus . Prosternum: anterior margin with deep, sharply incised semicircular emargination, bounded by indistinct tu- bercles, separated from coxae by narrow prosternal area. Scutellum: as in C. hortulanus . Elytra: brown to reddish, in basal 2/3 slightly rounded to subparallel, moderately elongate (El/Ew 1.21), widest between basal 1/3 and 1/2 of their length, at base markedly wider than pronotum (Ew/Pw 1.75), elytral base at interstria 3 moderately prominent anteriad, humeri subrotund, moderately prominent, with shallow posthumeral impression, slightly convex on disc; interstria 1 from 0.2 to almost half medial length and in preapical area very strongly broadened, interstria 2 at same lengths very strikingly narrowed to discontinued and constricted laterally encompassing very large dorsal and large preapical black tomentous maculae with distinct border of denser yellowish scales, interstria 3 around dorsal macula also constricted laterally; interstriae except perimacular areas of similar width; odd interstriae, especially in posterior part of elytra, with alternating black and yellowish inconspicuous scale patches; striae shallow, formed by single rows of round, densely arranged punctures; entire surface covered with densely arranged, elongate (l/w 4–6) scales similar to those in C. hortulanus , concealing almost completely integument. Venter: covered with very densely arranged, backwardly oriented recumbent to subrecumbent, elongate yellowish scales and hairs completely concealing integument; metasternum concave, impressions on ventrites 1 and 2 only punctured, without marked ribs, other characters as in C. hortulanus . Legs: as in C. hortulanus . Penis: Figs 16 d–f, its body similar to that of C. hortulanus but slightly more broadened at apex.

Female. Rostrum longer (Rl/Pl 1.35), finely punctured, with shiny apical part, in dorsal view markedly narrowed to apex. Ventrites 1 and 2 without impression. Claws equally long.

Variability. Length ♂♂ 4.45–4.98 mm, ♀ 5.06–5.21 mm. The type series does not show a considerable vari- ability. The elytral pattern varies from indistinct to moderately distinct.

Diagnosis. Cionus maurus is recognizable by almost invisible elytral integument, distinctly narrowed apical part of rostrum at least in lateral view being shiny in females, prominent base of interstria 3, very large dorsal and large preapical round maculae, large body size, brown to reddish elytra, deep impression on ventrites 1 and 2, very densely squamose venter, and penis shape.

Comparative notes. Cionus maurus is most closely related to C. hortulanus , from which it differs by very large dorsal and large preapical macula, moderately prominent elytral base at interstria 3, mostly brown or reddish elytra, very densely squamose venter and lack of distinct transverse ribs in the impression on ventrites 1 and 2.

Biological notes. Biology unknown.

Distribution. Spain, Morocco.

Etymology. The name refers to ancient inhabitants of Iberian Peninsula and Morocco, where the new species occurs, the Moors, in Latin Mauri.

Non-type specimens examined. None.

Figures

FIGURES 15–16. FIGURE 15. Cionus hortulanus. 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 16. Cionus maurus sp. n. 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.