Baldorhynchus saccoi Bello & Osella 2016, sp. n.
Creators: name: Bello, Cesare
name: Osella, Giuseppe
name: Baviera, Cosimo
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Baldorhynchus
Baldorhynchus saccoi

description: Baldorhynchus saccoi Bellò & Osella sp. n.
(Figures 30, 30a, 30b, 30c, 30d, 30e, 30f, 87, 119)
Type locality. “Monte Pizzoccolo, 500 m circa, Maderno, Brescia”.
Diagnosis. A Baldorhynchus of small size belonging to the B. kahleni group. Within the species group, it is distinguished by the oblong conical rostrum (briefly conical in the other species), longer elytra (length/width ratio 2.1), and robust antennae having the last five segments moniliform or transverse. Punctation of the pronotum coarse, irregularly scattered, sparse and not deep. Punctation of the elytra small, isodiametric, deep and regularly arranged along the entire surface. Total length: 3.85 mm. Elytra with length/width ratio 2.06. Pronotum length 0.78 mm with length/width ratio 1.15.
Type series. Holotype female: [transparent label with genitalia]// ♀ [white, printed]// "BS, Maderno, M. [onte] Pizzoccolo, m. 500 circa, ceduo latifoglie, 19. I. 1997, Tagliap.[ietra] & Zan.[etti]" [white, printed]// “collezione Cesare Bellò” [green, printed] // " Baldorhynchus saccoi sp. n., Holotype, det. Bellò & Osella, 2015" [red, printed] (GOS).
Paratype: " I, Brescia, Val d’Archesane, westl. Palazzo, 900 m, Hasel wurzeln, 3. 11. ’89, leg. Kahlen " (TLMF): one female. The genitalia of both female types were examined
Holotype. Female. Total length: 3.85 mm. Rostrum strongly elongate and covered by yellowish pubescence; more twice longer than the head; dorsum convex; mesorostrum slightly gibbous; a dozen epistomal setae thin, curved, semi-erect. Antenna slightly robust and short with long, semi-erect, thin setae; scape clavate and robust as funicle. Scape length: 0.75 mm; funicle length: 0.75 mm. Scape length/funicle length ratio: 1.00. Funicle with club ratios as follows: 9: 6: 3: 3: 3: 4: 3: 22 (club); fusiform club with first segment flat, longest of last six funicle segments, at least twice wider than funicle. Head smooth on disc, short, conical. Supraorbital area partially covered by yellowish pubescence. Vertex width / mesorostrum width: ratio 1.60. Vestigial eyes present, visible, partially covered by yellowish pubescence. Pronotum (length: 0.78 mm, width: 0.68 mm, ratio: 1.15) sub-cylindrical, slightly sinuate at the base, longer than wide, wider in the anterior third; short golden erect seta inserted in center of hole; punctation not deep, different widths and not uniformly arranged; smooth central area on disc. Scutellum small, slightly excavated, triangular. Elytra convex, strongly elongate with high suture (length: 2.20 mm, width: 1.07 mm, ratio: 2.1), strongly rounded on sides, widest at middle. Punctation of striae slightly deep, isodiametric but of different widths, 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 sligltly thin and elongate, with rather long golden setae. Femora clubbed and edentate. Tibiae with six/seven little toothlike tubercles on inner edge; protibia slightly curved in side view, metatibia and mesotibia straight. Sternite VIII with sides sub-rounded of lamina and with apical margin fused. Spermatheca with cornu developed, ramus and nodulus inconspicuous (Fig. 26f). Ovipositor weakly sclerotized, gonocoxites tapered, with short styli and several more or less long setae.
Variation. The paratype is similar to holotype only differing in size. Total length: 4.25. Elytra length 2.50 and elytra width 1.23: ratio 2.03.
Distribution. See Fig. 131. Italian endemic. Known only from “Mount Pizzoccolo” from 500 to 900 meters of elevation.
Etymology. Named after our friend and colleague Francesco Sacco for his photos that illustrate this work so well and as a gift for valuable collaboration.
Ecology/Phenology. The holotype was collected sifting the leaf litter in a coppice while the paratype was collected sifting roots of Corylus sp..
Reproduction. Probably amphigonic like the other species of this group.
description: Published as part of Bello, Cesare, Osella, Giuseppe & Baviera, Cosimo, 2016, A taxonomic revision of the genus Baldorhynchus (Di Marco & Osella, 2002) stat. n. (Coleoptera, Curculionidae, Entiminae), pp. 1-101 in Zootaxa 4070 (1) on pages 72-74, DOI: 10.11646/zootaxa.4070.1.1, http://zenodo.org/record/1054428