Baldorhynchus metallarius Bellò & Osella, 2016

Bello, Cesare, Osella, Giuseppe & Baviera, Cosimo, 2016, A taxonomic revision of the genus Baldorhynchus (Di Marco & Osella, 2002) stat. n. (Coleoptera, Curculionidae, Entiminae), Zootaxa 4070 (1), pp. 1-101 : 82-84

Baldorhynchus metallarius Bellò & Osella sp. n.

( Figures 35, 35a, 35b, 35c, 35d, 35e, 35f , 78 , 124 )

Type locality. “Miniera Palio Pignolino, 1020 m, Dossena, Bergamo”.

Diagnosis. A Baldorhynchus species of oval shape and large size species belonging to the B. moczarskii group. Within the species group, it is distinguished by elytra with length/width ratio 1.85–1.90 (1.95–2.05 in the other species) and the fourth funicle segment longer than the third (shorter in the other species). Punctation on the pronotum small, shallow and quite regularly arranged. Elytra punctation is not deep, isodiametric, regularly aligned. Total length: 4.80–5.55 mm. Pronotum length 1.00– 1.15 mm with length/width ratio 1.18–1.21.

Type series. Holotype female: // ♀ [white, printed] // "IT-Lombardia, BG [Bergamo], Dossena, Miniera Palio Pignolino, m 1020, 1.II. 2015, Grottolo leg." [white, printed] // " Baldorhynchus metallarius sp. n., Holotype, det. Bellò & Osella, 2015" [red, printed] (GOS).

Paratypes. "IT-Lombardia, BG [Bergamo], Dossena, Miniera Palio Pignolino, m 1020, 1.II. 2015, Pedersoli D. leg."(CBE, MGR): five females (legs and funicle segments partially present); "IT-Lombardia, BG [Bergamo], Dossena, Miniera Palio Pignolino, m 1020, 28.III. 2015, Pedersoli D. leg." (MGR): one female (legs and funicle segments partially present). Types are seven (all females) and genitalia only one were examined.

Holotype. Female. Total length: 5.55 mm. Rostrum elongate and covered by brown-yellowish pubescence; about twice longer than the head; dorsum convex; mesorostrum not gibbous; a dozen epistomal setae thin, curved, semi-erect. Antenna strongly slender and elongate with long, semi-erect, thin setae; scape clavate and thin as funicle. Scape length: 1.15 mm; funicle length: 1.30 mm. Scape length/funicle length ratio: 0.88. Funicle with club ratios as follows: 15:11:8:9:5:7:5: 33 (club); fusiform club with first segment flat, almost as long as the last five funicle segments, at least twice wider than funicle. Head smooth on disc, short, conical. Supraorbital area partially covered by brown -yellowish pubescence. Vertex width / mesorostrum width: ratio 2.00. Vestigial eyes visible, partially covered by brown-yellowish pubescence. Pronotum (length: 1.15 mm, width: 0.95 mm, ratio: 1.21), sinuate at the base, wider in the middle; short golden erect seta inserted in center of hole; punctation small, shallow, isodiametric but of different widths and quite regularly arranged; smooth little central area on disc. Scutellum small, slightly excavated, triangular. Elytra convex, elongate-oval with high suture (length: 3.30 mm, width: 1.70 mm, ratio: 1.94), strongly rounded on sides, widest at middle and ogive-shaped on declivity. Punctation of striae not deep, isodiametric, regularly aligned, only some with a minute and short seta; interspaces between strial punctation regular and less wide than hole. Interstriae less wide than striae, flat, smooth with sparse, short and erect setae. Legs thin and elongate, with rather long golden setae. Femora strongly clubbed and edentate. Tibiae with seven tooth-like tubercles on inner edge; protibia slightly curved in side view, metatibia and mesotibia straight. Sternite VIII with sides sub-parallel of lamina and with apical margin fused. Spermatheca with cornu developed, ramus and nodulus inconspicuous ( Fig. 78 ). Ovipositor weakly sclerotized, gonocoxites tapered, with short styli and several more or less long setae.

Male. Not known.

Distribution. See Fig. 132 . Italian endemic. Known only from the old mine “Palio Pignolino” at 1020 m near Dossena, Bergamo.

Etymology. Derived from the Latin word, metallarius (miner), for the place of the discovery of this unexpected species.

Ecology/Phenology. Specimens were collected in an old iron mine. B. metallarius confirms a wider spread of the moczarski - group even at higher elevations in the Orobian Pre- Alps, as observed for B. baldensis on Monte Baldo.

Reproduction. Probably parthenogenetic. Species known only from seven females.

Figures

FIGURE 132 — Distribution of the B. moczarskii group.

FIGURES 35 – 35 f — Baldorhynchus metallarius Bellò & Osella sp. n. holotype ♀ from “ Miniera Palio Pignolino, 1020 m, Dossena, Bergamo ”: 35 — habitus, dorsal view (scale bar: 1 mm); 35 a—habitus, lateral view; 35 b—rostrum, lateral view; 35 c—pronotum; 35 d—elytra punctuation; 35 e— funicle and club; 35 f—spermatheca.

FIGURES 57 – 91. Spermatheca of Baldorhynchus sp.: 57 — B. agostianus Bellò & Osella sp. n., paratype; 58 — B. amicalis (Osella, 1983), holotype; 59 — B. anachoreta Bellò & Osella sp. n., paratype; 60 — B. baldensis (Czwalina, 1875), topotype; 61 — B. blesioi (Osella, 1983), paratype; 62 — B. bodeianus Bellò & Osella sp. n., paratype; 63 — B. branchianus Bellò & Osella sp. n., holotype; 64 — B. brixiensis (Osella, 1983), paratype; 65 — B. caoduroi (Osella, 1983), topotype; 66 — B. chiarae (Monguzzi, 1999), holotype; 67 — B. cohabitator Bellò & Osella sp. n, holotype; 68 — B. comottii (Osella, 1983), holotype; 69 — B. danzii Bellò & Osella sp. n., paratype; 70 — B. deceptor Bellò & Osella sp. n., paratype; 71 — B. ferrarii (F. Solari, 1955), paratype; 72 — B. grottoloi Bellò & Osella sp. n., paratype; 73 — B. judicariensis (Osella, 1983), paratype; 74 — B. kahleni (Osella, 1983), holotype; 75 — B. lessinicus (Osella, 1983), holotype; 76 — cf. B. magasaensis Bellò & Osella sp. n.; 77 — B. marianus Bellò & Osella sp. n., holotype; 78 — B. metallarius Bellò & Osella sp. n., holotype; 79 — B. mockzarskii (Breit, 1913), holotype; 80 — B. monguzzii Bellò & Osella sp. n., holotype; 81 — B. nardii Bellò & Osella sp. n., holotype; 82 — B. paladinii Bellò & Osella sp. n., holotype; 83 — B. pedersolii Bellò & Osella sp. n., holotype; 84 — B. pivai Bellò & Osella sp. n., paratype; 85 — B. regalini Bellò & Osella sp. n., holotype; 86 — cf. B. ruzzieri Bellò & Osella sp. n.; 87 — B. saccoi Bellò & Osella sp. n., holotype; 88 — B. settei Bellò & Osella sp. n., holotype; 89 — B. tedeschii Bellò & Osella sp. n., holotype; 90 — B. toscolanus (Osella, 1983), paratype; 91 — B. valvestinus (Osella, 1983), paratype.

FIGURES 92 – 126. VIII sternite of Baldorhynchus sp.: 92 — B. baldensis (Czwalina, 1875), topotype; 93 — B. amicalis (Osella, 1983), holotype; 94 — B. caoduroi (Osella, 1983), topotype; 95 — B. lessinicus (Osella, 1983), holotype; 96 — B. paladinii Bellò & Osella sp. n., holotype; 97 — B. ruzzieri Bellò & Osella sp. n., paratype; 98 — B. blesioi (Osella, 1983), holotype; 99 — B. brixiensis (Osella, 1983), paratype; 100 — B. agostianus Bellò & Osella sp. n., paratype; 101 — B. bodeianus Bellò & Osella sp. n., paratype; 102 — B. deceptor Bellò & Osella sp. n., paratype; 103 — B. grottoloi Bellò & Osella sp. n., paratype; 104 — B. marianus Bellò & Osella sp. n., holotype; 105 — B. nardii Bellò & Osella sp. n., holotype; 106 — B. tedeschii Bellò & Osella sp. n., holotype; 107 — B. chiarae (Monguzzi, 1999), holotype; 108 — B. danzii Bellò & Osella sp. n., paratype; 109 — B. monguzzii Bellò & Osella sp. n., holotype; 110 — B. ferrarii (F. Solari, 1955), paratype; 111 — B. anachoreta Bellò & Osella sp. n., paratype; 112 — B. magasaensis Bellò & Osella sp. n., holotype; 113 — B. pivai Bellò & Osella sp. n., paratype; 114 — B. settei Bellò & Osella sp. n., holotype; 115 — B. kahleni (Osella, 1983), holotype; 116 — B. judicariensis (Osella, 1983), paratype; 117 — B. toscolanus (Osella, 1983), paratype; 118 — B. valvestinus (Osella, 1983), paratype; 119 — B. saccoi Bellò & Osella sp. n., holotype; 120 — B. mockzarskii (Breit, 1913), holotype; 121 — B. comottii (Osella, 1983), holotype; 122 — B. branchianus Bellò & Osella sp. n., holotype; 123 — B. cohabitator Bellò & Osella sp. n, holotype; 124 — B. metallarius Bellò & Osella sp. n., holotype; 125 — B. pedersolii Bellò & Osella sp. n., holotype; 126 — B. regalini Bellò & Osella sp. n., holotype.