Baldorhynchus toscolanus (Osella, 1983)

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 : 69-71

Baldorhynchus toscolanus (Osella, 1983) stat. n.

( Figures 28, 28a, 28b, 28c, 28d, 28e, 28f, 54, 90, 117)

Troglorhynchus kahleni ssp. toscolanus Osella, 1983: 95 -123; Abbazzi & Osella, 1992: 302; Abbazzi et al., 1994: 21. Otiorhynchus (Troglorhynchus) kahleni toscolanus: Magnano, 1998: 71 .

Otiorhynchus (Baldorhynchus) kahleni ssp. toscolanus: Di Marco & Osella, 2002: 258 ; Colonnelli, 2003: 39; Abbazzi & Maggini, 2009: 53; Magnano & Alonso Zarazaga.

Type locality. “Toscolano, 600 m, Val di Campiglio , Brescia ”.

Diagnosis. A Baldorhynchus of small size belonging to the B. kahleni group. Within the species group, it is recognisable by the strongly carinate rostrum and the vertex width/mesorostrum width ratio: 1.6 (2.0 in the other species). Punctation of the pronotum small, irregularly scattered, slightly dense and deep. Elytral punctution small, regularly arranged, deep and isodiametric. Total length: 3.85 mm. Elytra with length/width ratio 1.96. Pronotum length 0.75 with length/width ratio 1.04.

Description. See Osella (1983) and figures hoc opus.

Holotype. Male. Total length: 3.85 mm. Scape length: 0.80 mm; funicle length: 0.80 mm. Scape length/funicle length ratio: 1.00. Funicle with club ratios: 9: 6: 4:.4: 4: 5: 4: 26 (club). Vestigial eyes present, visible, not covered by pubescence. Vertex width/mesorostrum width: ratio 1.60. Pronotum ratio: 1.04 (length: 0.75 mm, width: 0.72 mm). Elytra ratio: 1.96 (length: 2.20 mm, width: 1.12 mm).

Distribution. See Osella (1983) and Fig. 131.

Material. We examined the material studied by Osella (1983).

Ecology/Phenology. See Osella (1983).

Reproduction. Amphigonic.

Systematic notes. In this work, we elevate the taxon Otiorhynchus (Baldorhynchus) kahleni toscolanus (Osella, 1983) to species level as Baldorhynchus toscolanus (Osella, 1983) . The holotype has a white card with the following handwritten determination " tridentinus kahleni Troglorhyncus det. Osella ’83".

FIGURES 29–29f — Baldorhynchus valvestinus (Osella, 1983) holotype ♂ from “Valvestino, Val Droanello, 550 m, Giudicarie, Brescia”: 29—habitus, dorsal view (scale bar: 1 mm); 29a—habitus, lateral view; 29b—rostrum, lateral view; 29c—pronotum; 29d—elytra punctuation; 29e—funicle and club; 29f—apex penis.