Solariola obsoleta Bello' & Osella & Baviera 2019, sp.n.
Creators: name: Bello', Cesare
name: Osella, Giuseppe
name: Baviera, Cosimo
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Solariola
Solariola obsoleta

description: Solariola obsoleta Bellò, Osella & Baviera sp.n.
(Figs 24, 24a, 24b, 24c, 24d, 24e, 45i, 70, 70 ’, 113, 156, 199) http://zoobank.org/ urn:lsid:zoobank.org:act: 4A2AA2E2-0225-4BDB-AB7B-9B2C3AE16D30
Type locality. Calabria, Catanzaro, Le Serre Mountains, Cardinale, 620m (Fig. 250).
Diagnosis. A small size Solariola (TL: 2.5 2–2.80 mm; BL: 2.10–2.30 mm) belonging to the gestroi group with more robust body shape. Within the species group, it is recognisable by black–brownish cuticle, elytra sub-parallel to sides, pronotum a lot longer than wide, legs short and robust. Rostrum tapered (RL: 0.35–0.45 mm, RW: 0.20–0.30 mm, RL/RW: 1.50–1.75). Mesorostrum carinae slightly divergent to sides. Forehead convex and wide (FW/MW: 2.00–2.00). Submentum with whitish, flattened, and short pappolepida. Antennae with scape and funicle quite short and thin (SL: 0.50–0.55 mm, FL: 0.65–0.75 mm, SL/FL: 0.73–0.77). Pronotum longer than wide (PL: 0.60–0.67 mm, PW: 0.50–0.58 mm, PL/PW: 1.16–1.20) without echinopappolepida at base. Small elytra elongate, sub-parallel to sides, dorsally vaulted (EL: 1.40–1.67 mm, EW: 0.76–0.90 mm, EL/EW: 1.84–1.86) with elytral setae elongate, semi-erect.
Type series. Holotype male with following labels: [genitalia in DHMF] [transparent label] / ♂ [w, p] / Calabria, CZ, Cardinale, 22. V. 2012, leg. Baviera C. [w, hw] / leg. Ruffa D., Sito 3, 22. V. 2012 [w, hw] / Collezione Cesare Bellò, Castelfranco Veneto [g, p] / Solariola obsoleta Holotype det. Bellò, Osella & Baviera, 2018 [r, p] / esemplare fotografato by Francesco Sacco [y, p] (CBE).
Paratypes. Six specimens (4 males and 2 females) with following labels: Calabria, CZ, Cardinale, 22. V. 2012, leg. Baviera C. [w, hw] / leg. Ruffa D., Sito 3, 22. V. 2012 [w, hw] / Collezione Cesare Bellò, Castelfranco Veneto [g, p] (1 male, CBA); Italy, Calabria, Catanzaro, Cardinale, 620m, sito A, 38°38.951’N 16°24.610’E, 3-22.V.2012, Ruffa D. leg. [w, p] / Collezione Cesare Bellò, Castelfranco Veneto [g, p] (1 male, 1 female CBA; 2 males, 1 fermale CBE). All with label: Solariola obsoleta paratype det. Bellò, Osella & Baviera, 2018 [r, p].
Holotype description. Male. See Figs 24, 24a, 24b, 24c, 24d, 24e. Elongate–cylindrical body (T L: 2.52 mm, BL: 2.10 mm). Black–brownish cuticle.
Rostrum slender (RL: 0.35 mm, RW: 0.20 mm, RL/RW: 1.75), conical to sides with pterygium expanded. Epistome absent. Mesorostrum carinae slightly divergent to sides. Submentum with some pappolepida, whitish, short and not visible around mesorostrum. Interocular pit not visible. Forehead convex and wide (FW/MW: 2.00). Vestigial eyes convex, not small and well visible.
Antennae with scape and funicle quite short and thin (SL: 0.50 mm, FL: 0.65 mm, SL/FL: 0.77); AS ratio: 6.5.4.3.3.3.4.10. Scape clubbed, more robust than funicle, curved at proximal third and progressively thickening towards apex. Funicle segments with elongate and thin setae. Club three-segmented, oval, in length less than twice the width, densely covered by thin setae.
Pronotum elongate (PL: 0.60 mm, PW: 0.50 mm, PL/PW: 1.20), wider in the middle and without echinopappolepida at base. Scutellum visible.
Elytra oval-elongate and sub-parallel to sides, dorsally vaulted (EL: 1.40 mm, EW: 0.76 mm, EL/EW: 1.84), wider at middle with slightly convex suture. Humeri rounded. Striae with 12–13 punctures, catenulate. Interstriae slightly convex, with thin and elongate setae semi-erect. Elytral declivity>60 degrees.
Legs short and robust with femora clubbed. Protibia with seven acute spines on inner edge and an evident mucro on inner apical angle. Protibia slightly sinuous on inner edge and slightly curved in side view. Metatibia and mesotibia straight in side view. All tibia with noticeable apical comb. Tarsal segment 1 short, conical; segment 2 short and transverse; segment 3 very bilobed; all segments with thin golden setae. Onychium curved, robust and short with one short claw.
Male genitalia. See Figs: dorsal shape aedeagus Fig. 70; apex of penis Fig. 70 ’; IX sternite Fig. 113.
Female genitalia. See Figs: spermatheca Fig. 156; VIII sternite Fig. 199.
Sexual dimorphism. Males can usually be recognized by their smaller size, slender appearance, more rounded humeri, legs stronger with a more noticeable apical mucro, and ventrites 1 and 2 slightly hollowed.
Paratypes variability. Paratypes, sexual dimorphism excluded, are similar to the holotype but differs in size.
Distribution. See Figs. 222, 222a. Italian endemic. Known only from Catanzaro, “Le Serre” Mountains, and Cardinale locality at 600–700 meters of elevation.
Etymology. Named from Latin word “obsoleta”, damaged in English.
Ecology and Phenology. S. obsoleta specimens were collected by Winkler or Berlese extractors from soil obtained sifting the leaf litter of a forest of Quercus sp. with Hedera sp. in May.
Main soil type. Dystrict Cambisol (European Soil Data Centre; Panagos et al. 2012).
Reproduction. Amphigonic.
Associated species. Sympatric with Pseudomeira erinacea Bellò & Baviera, 2011.
description: Published as part of Bello', Cesare, Osella, Giuseppe & Baviera, Cosimo, 2019, A taxonomic monograph of the genus Solariola Flach, 1908 (Coleoptera: Curculionidae: Entiminae), pp. 1-261 in Zootaxa 4676 (1) on pages 134-138, DOI: 10.11646/zootaxa.4676.1.1, http://zenodo.org/record/3468945