Solariola diottii 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 diottii

description: Solariola diottii Bellò, Osella & Baviera sp.n.
(Figs 21, 21a, 21b, 21c, 21d, 21e, 45f, 67, 67 ’, 110, 153, 196) http://zoobank.org/ urn:lsid:zoobank.org:act: 52898F86-943E-49A0-B9C0-305F7EA43F8C
Type locality. Calabria, Reggio Calabria, Aspromonte Mountains, Ferruzzano, Bosco Rùdina (Fig. 247).
Diagnosis. A small–medium size Solariola (TL: 2.8 0–3.30 mm; BL: 2.30–2.90 mm) belonging to the gestroi group with more robust body shape. Within the species group, it is recognisable by brown-reddish cuticle; elytra sub-parallel to sides and sub-flat on disc; with shallow punctures and interstriae raised. Rostrum quite short (RL: 0.40–0.50 mm, RW: 0.28–0.35 mm, RL/RW: 1.43–1.50). Mesorostrum carinae sub-parallel to sides. Forehead convex and wide (FW/MW: ratio 2.15–2.15). Submentum with whitish-yellowish, flattened, and short pappolepida. Antennae with scape and funicle quite short and robust (SL: 0.45–0.60 mm, FL: 0.65–0.80 mm, SL/FL: 0.67–0.75). Pronotum sub-square or longer than wide (PL: 0.65–0.80 mm, PW: 0.65–0.80 mm, PL/PW: 1.00–1.08) without echinopappolepida at base. Slightly elongate elytra, dorsally sub-flat (EL: 1.85–2.02 mm, EW: 0.90–1.07 mm, EL/ EW: 1.83–1.90) with elytral setae elongate and semi-erect.
Type series. Holotype female with following labels: ♀ [w, p] / Aspromonte, Ferruzzano, Bosco Rudina, lecceta, 17. XI. 1993, Sabella [w, p] / Solariola hirtula, L.[uciano] Diotti det. 2006 [w, p] / Colonnelli [w, p] / Collezione Cesare Bellò, Castelfranco Veneto [g, p] / Solariola diottii Holotype det. Bellò, Osella & Baviera, 2018 [r, p] / esemplare fotografato by Francesco Sacco [y, p] (CBE).
Paratypes. Five specimens (2 males and 3 females) with following labels: Aspromonte (RC) Ferruzzano, 17. XI. 1993, Sabella [w, p] / Solariola paganettii Flach, det. Diotti, 2006 [w, p] / collezione Cesare Bellò, Castelfranco Veneto [g, p] (1 female, APA; 1male, CBE; 1female, LDI); Aspromonte, Ferruzzano, Bosco Rudina, lecceta, 17. XI. 1993, Sabella [w, p] / Solariola hirtula, E. Colonnelli det. 2004 [w, p] / collezione Enzo Colonnelli [w, p] (1 male, ECO); Aspromonte, Ferruzzano, Bosco Rudina, lecceta, 17. XI. 1993, Sabella [w, p] collezione Cesare Bellò, Castelfranco Veneto [g, p] (1 female, CBA). All with label: Solariola diottii paratype det. Bellò, Osella & Baviera, 2018 [r, p].
Additional material examined. Two specimens fragments (male and female abdomens) with following label: Italy, Calabria, Reggio Calabria, Aspromonte, Bosco Rùdina, vaglio, 2. V. 2018, Bellò & Baviera legg. [w, p] / Caraffa del Bianco, 135m, 38°03’43.5’’N 16°05’28.2’’E, 2. V. 2018, Bellò & Chemello leg. [w, p] / Collezione Cesare Bellò, Castelfranco Veneto [g, p] / Solariola diottii det Bellò, Osella & Baviera, 2018 [w, p] (CBE).
Holotype description. Female. See Figs 21, 21a, 21b, 21c, 21d, 21e. Slightly oval-elongate body (T L: 2.80 mm, BL: 2.25 mm). Brown-reddish cuticle.
Rostrum short (RL: 0.45 mm, RW: 0.30 mm, RL/RW: 1.50), conical to sides with pterygium expanded. Epistome absent. Mesorostrum carinae sub-parallel to sides. Submentum with some pappolepida, whitish-yellowish and short not visible around mesorostrum. Interocular pit visible. Forehead convex and wide (FW/MW: ratio 2.15). Vestigial eyes flat and just visible.
Antennae with scape and funicle quite short and robust (SL: 0.50 mm, FL: 0.75 mm, SL/FL: 0.67); AS ratio: 6.5.3.4.3.3.3.12. 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 sub-square (PL: 0.65 mm, PW: 0.65 mm, PL/PW: 1.00), wider in the middle and without echinopappolepida at base. Scutellum visible.
Elytra oval-elongate and sub-parallel to sides, dorsally sub–flattened (EL: 1.85 mm, EW: 0.97 mm, EL/EW: 1.90), wider at middle with convex suture. Humeri briefly rounded. Striae with 12–13 shallow punctures, catenulate. Interstriae convex, with thin and elongate setae semi-erect. Elytral declivity>60 degrees.
Legs short and robust with femora clubbed. Protibia with five acute spines on inner edge and an evident mucro on inner apical angle. Protibia slightly sinuous on inner edge and straight 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. 67; apex of penis Fig. 67 ’; IX sternite Fig. 110.
Female genitalia. See Figs: spermatheca Fig. 153; VIII sternite Fig. 196.
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 Aspromonte, Ferruzzano, Bosco [=Woodland] Rùdina locality at 135–400 meters of elevation.
Etymology. This species is named after our friend and colleague Diotti (Luciano), specialist in weevils, in appreciation and gratitude for his cooperation in our study on Peritelini.
Ecology and Phenology. Adult specimens were collected in November, with pitfall traps placed in the leaf litter of Quercus ilex.
Main soil type. Calcaric Regosol (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 121-125, DOI: 10.11646/zootaxa.4676.1.1, http://zenodo.org/record/3468945