Cionus hauseri Wingelmüller, 1914

Košťál, Michael & Caldara, Roberto, 2019, Revision of Palaearctic species of the genus Cionus Clairville (Coleoptera: Curculionidae: Cionini), Zootaxa 4631 (1), pp. 1-144 : 27-29

11. Cionus hauseri Wingelmüller, 1914

Figs 11 a–f.

Cionus hauseri Wingelmüller, 1914: 220 . Wingelmüller, 1921: 106; 1937: 202. Caldara, 2013: 123. Alonso-Zarazaga et al., 2017: 185.

Type locality. “ Tschintschan ” (probably in present-day Kyrgyzstan) .

Type series. In coll. Wingelmüller ( NHMW), there are five male (one of them erroneously labeled as a female) and one female specimen. Four males are labeled: “Tschintschan Tau Gebge. Coll.Hauser / ♂ / Hauseri n.sp. det. Wingelmüll. [Wingelmüller´s handwriting]”, the female with the same labels as the males but with “ ♀ ” label (the same label erroneously in one of the males), one male is labeled “Buchara / Hauseri”. These localities exactly correspond to author´s data reported in the original description. Therefore, we consider these specimens syntypes. One male from Tschintschan has the penis mounted, the other male from the same place was remounted and its genital dissection was made. In the original description, there is no indication of a type specimen. Therefore, we designated the remounted male as the lectotype of Cionus hauseri Wingelmüller by adding the printed red label “LECTOTY- PUS Cionus hauseri Wingelmüller M.Košťál et R.Caldara 2011 ”. The lectotype is 3.69 mm long, well-preserved, with missing right antenna from the third funicular segment. The other specimens were labeled as paralectotypes accordingly .

Synonyms. None.

Redescription. Male. Body medium stout, subparallel. Head: rostrum moderately stout, medium long (l/ w 4.4, Rl/Pl 1.43), black; in lateral view slightly evenly curved, with long but flat swelling near, and at antennal insertion, basal part except swelling of same width, apical part tapered to apex; in dorsal view slightly broadened, then subparallel almost to apex, in basal 1/4 moderately constricted laterally, apical part very slightly flattened dorsoventrally; basal part very densely longitudinally punctured, punctation of apical part sparser towards apex, punctures more round at apex, especially in midline shiny, without punctures; basal part covered with subrecumbent, upwardly oriented, elongate blackish scales, apical part with suberect, forwardly oriented, whitish hair-like scales. Head between eyes narrow, of approximately 0.6 rostrum width at base. Eyes medium large, rounded, very slightly protruding from head outline. Antennae brown to blackish-brown, from funicular segment 3 to club black, inserted at 0.65 of rostrum length; funicle of 0.8 scape length, segment 1 slightly broader than, and about as long as segment 2, segment 1 1.5 × as long as wide, segment 2 twice as long as wide, segments 3–5 subglobose, club elongate, 2.3 × as long as wide, of 0.9 funicle length, completely covered with recumbent dark brown to whitish tiny hairs and sparse erect whitish sensilla. Pronotum: black, somewhat wider than long (Pl/Pw 0.65), densely unevenly punctured, punctures variable in size and shape, mostly round; unevenly semidensely covered with suberect, variously oriented, whitish and dark brown, elongate (l/w 4–7) scales; widest at 1/3 of its length from base, widely rounded in basal half, then broadly and strikingly constricted to anterior margin, in lateral view very slightly rounded in basal half, then moderately falling forwards, and shallowly constricted before anterior margin. Prosternum: anterior margin with very shallow emargination by far not reaching coxae, bounded on each side by tiny, indistinct tubercles. Scutellum: subtriangular, blunt at apex, covered with backwardly oriented, subrecumbent scales being anteriorly blackish and less elongate, and posteriorly whitish and more elongate to hair-like. Elytra: reddish-brown, in basal 2/3 very slightly rounded to subparallel, in apical third broadly evenly rounded, moderately elongate (El/Ew 1.26), widest approximately at anterior 1/3 of their length, at base markedly wider than pronotum (Ew/Pw 1.73), humeri broadly rounded but clearly prominent, with very shallow to unnoticeable posthumeral impression, elytra almost flat on disc; interstria 1 from about 1/4 to half of medial length and shortly before apex broadened, interstria 2 at same lengths narrowed and constricted laterally encompassing medium-sized, almost evenly round dorsal and somewhat irregular preapical black tomentous maculae without any surrounding cluster of scales, interstriae excepting macular areas unevenly wide, interstria 4 at approximately half of elytral length with round punctures, moderately convex; odd interstriae with sparsely and unevenly distributed patches of markedly elongate, whitish scales; striae relatively deep, formed by irregular single rows of deep, unevenly densely distributed punctures, spaces between punctures clearly smaller than puncture diameter; entire surface relatively sparsely, unevenly covered with subrecumbent to suberect, more or less elongate (l/w 5–9), yellowish and whitish scales and hair-like scales leaving integument clearly visible. Venter: moderately densely covered with backwardly oriented, recumbent to subrecumbent, whitish to light brown hair-like scales, with clusters of shorter and wider white scales on margins of ventrites 2–4; mesosternal process flat, blunt at apex; metasternum flat, transversally punctured to ribbed, ventrite 1 with shallow but noticeable, transversally punctured impression, ventrite 2 flat, transversally punctured; ventrite 1 1.8 × as long as ventrite 2, ventrites 1–2 combined 3.9 × as long as ventrites 3–4 combined, ventrites 3–4 combined of 0.8 length of ventrite 5. Legs: black to blackish-brown except reddish-brown tarsomere 3 and basal 4/5 of onychium and claws; profemora with small to indistinct blunt teeth, meso- and metafemora with larger, blunt teeth bearing brushes of seta-like scales giving impression of sharp tiny teeth; femora, tibiae and tarsi semidensely covered with subrecumbent to suberect whitish and black elongate scales, on femora not clustered into transverse bands, onychia with subrecumbent whitish hairs; onychia of anterior legs of normal length, of about 0.9 length of tarsomeres 1–3 combined, protarsal tarsomere 3 as long as wide; claws of all legs of equal length. Penis: Figs 11 d–f, its body in ventral view with concave outline in its distal third, then broadly tapered to apex.

Female. Rostrum moderately longer (Rl/Pl 1.50), of similar shape as in male, in distal part moderately more tapered to apex, antennal insertion closer to rostrum mid-length, in 0.6 of rostrum length. Ventrites 1 and 2 without impression.

Variability. Length: ♂♂ 3.51–3.70 mm, ♀♀ 3.82–3.85 mm. The type series and a few non-type specimens show no variability. The elytra of some specimens may look more reddish, without white patches of scales due to the abrasion of hair-like scales.

Diagnosis. This species is easily recognizable by reddish elytra contrasting with the black rest of body, constricted pronotum, very shallow prosternal emargination, and equally long claws in both sexes.

Comparative notes. This species is very characteristic and apparently intermediate between the genera Cionus and Cleopus because of equally long claws and very shallow prosternal emargination.

Biological notes. Biology unknown. Montane species.

Distribution. Kyrgyzstan, Tajikistan, Mongolia.

Non-type specimens examined. KYRGYZSTAN: “OST-BUCHARA Tschitschantan” (1 ♀ ME) , “Tsch- intschan Tau Gebge. Coll. Hauser / Cionus Hauseri Winglm. det. Stöcklein / Sammlung Stöcklein” (1 ♂ NHMB) ; TAJIKISTAN: Karategin 3200 m 21.vi.1889 (2 spec. ZMHB) ; MONGOLIA: Kalgan (1 ♀ ME) .

Figures

FIGURES 11–12. FIGURE 11. Cionus hauseri. 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 12. Cionus canariensis. 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.