Solariola cajetanibelloi Bellò, Osella & Baviera sp.n.

(Figs 19, 19a, 19b, 19c, 19d, 19e, 45d, 65, 65 ’, 108, 151, 194) http://zoobank.org/ urn:lsid:zoobank.org:act: F69BD5EB-239B-4839-A8B5-6B59DDA24420

Type locality. Calabria, Cosenza, Cetraro, Pistuolo Mount, 700m (Fig. 245).

Diagnosis. A small–medium size Solariola (TL: 2.6 0–3.20 mm; BL: 2.20–2.60 mm) belonging to the gestroi group with more robust body shape. Within the species group, it is recognisable by red-brownish cuticle; elytra subparallel to sides, pronotum a lot longer than wide, legs short and robust. Rostrum short (RL: 0.40–0.50 mm, RW: 0.30–0.40 mm, RL/RW: 1.25–1.33). Mesorostrum carinae slightly divergent to sides. Forehead convex and wide (FW/MW: 2.00–2.00). Submentum with whitish-yellowish, flattened, and short pappolepida. Antennae with scape and funicle elongate and thin (SL: 0.50– 0.50 mm, FL: 0.75– 0.75 mm, SL/FL: 0.67–0.67). Pronotum a lot longer than wide (PL: 0.64–0.75 mm, PW: 0.57–0.65 mm, PL/PW: 1.12–1.15) without echinopappolepida at base. Slightly elongate–oval elytra, dorsally vaulted (EL: 1.54–1.80 mm, EW: 0.82–0.98 mm, EL/EW: 1.84–1.87) with elytral setae elongate, semi-erect.

Type series. Holotype male with following labels: [genitalia in DHMF] [transparent label] / ♂ [w, p] / Calabria, Cosenza, Cetraro, Monte Pistuolo, Il Rifugio, 700m, 1. XI. 2011, leg. Bellò C. [w, p] / CSPI 1.3 [w, hw] / Collezione Cesare Bellò, Castelfranco Veneto [g, p] / Solariola cajetanibelloi Holotype det. Bellò, Osella & Baviera, 2018 [r, p] / esemplare fotografato by Francesco Sacco [y, p] (CBE) .

Paratypes. Eight specimens (5 males and 3 females) with following labels: Calabria, Cosenza, Cetraro, Monte Pistuolo, Il Rifugio, 700m, 1. XI. 2011, leg. Bellò C. [w, p] / CSPI 1,1 [w, hw] (1 female, CBA); Calabria, Cosenza, Cetraro, Monte Pistuolo, Il Rifugio, 700m, 1. XI. 2011, leg. Bellò C. [w, p] / CSPI 1,2 [w, hw] (1 female, CBE); I, Calabria, CS, Cetraro, Monte Pistuolo, 700m, vaglio bosco misto, 1. XI. 2011 [w, p] / N39°30.890’ E016°01.965’ legg. Bellò & Chemello [w, p] / collezione Cesare Bellò, Castelfranco Veneto [g, p] (1 male, CBA; 1 male + 1 female, CBE); Italy, Calabria, Cosenza, Cetraro, Monte Pistuolo, dintorni Rifugio, 700m, vaglio Quercus + Hedera [w, p] / N39°30.890’ E016°01.965’, 3. V. 2018, Cesare Bellò & Chemello Maria Silvana, Leonardo Forbicioni legg. [w, p] / collezione Cesare Bellò, Castelfranco Veneto [g, p] (1 male, CBA; 2 males, CBE). All with label: Solariola cajetanibelloi paratype det. Bellò, Osella & Baviera, 2018 [r, p].

Holotype description. Male. See Figs 19, 19a, 19b, 19c, 19d, 19e. Slightly oval-elongate body (T L: 2.85 mm, BL: 2.30 mm). Red-brownish cuticle.

Rostrum short (RL: 0.45 mm, RW: 0.35 mm, RL/RW: 1.29), conical to sides with pterygium expanded. Epistome absent. Mesorostrum carinae slightly divergent to sides. Submentum with some pappolepida, whitish-yellowish and short not visible around mesorostrum. Interocular pit visible. Forehead convex and wide (FW/MW: 2.00). Vestigial eyes convex, small but well visible.

Antennae with scape and funicle elongate and thin (SL: 0.50 mm, FL: 0.75 mm, SL/FL: 0.67); AS ratio: 6.5.4.3.3.3.4.13. 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: 0.68 mm, PW: 0.60 mm, PL/PW: 1.13), wider in the middle and without echinopappolepida at base. Scutellum visible.

Elytra oval-elongate and sub-parallel to sides, dorsally vaulted (EL: 1.65 mm, EW: 0.88 mm, EL/EW: 1.87), wider at middle with slightly convex suture. Humeri rounded. Striae with 13–14 large 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 eight 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. 65; apex of penis Fig. 65 ’; IX sternite Fig. 108.

Female genitalia. See Figs: spermatheca Fig. 151; VIII sternite Fig. 194.

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 Cetraro on Monte Pistuolo (Mount of Coastal Mountains) near “Il Rifugio”, locality at 700 meters of elevation.

Etymology. This species is named after Gaetano (Bellò) (latinized: Cajetanus), the very young grandson of one of us (Bellò).

Ecology and Phenology. We collected S. cajetanibelloi by Winkler or Berlese extractors from soil obtained sifting the thick leaf litter of a forest of Quercus sp. with Hedera sp., in winter and springtime.

Main soil type. Dystrict Cambisol ( European Soil Data Centre; Panagos et al. 2012) .

Reproduction. Amphigonic.

Associated species. Sympatric with Pseudomeira lucana Bellò & Pierotti (1992), Acalles parvulus Boheman (1837), Elliptacalles longus (Desbrocers, 1892), Otiorhynchus (Nehrodistus) armatus armatus Boheman (1842) .