G. it. Ent., 15 (65): 723-732
March 2020
Un nuovo Otiorhynchus Germar, 1822
Subgen. Italorrhynchus Magrini, 2019
dell’Umbria
(Coleoptera, Curculionidae, Entiminae)
di
PAOLO MAGRINI & ANDREA PETRIOLI
Abstract - A new Otiorhynchus Germar, 1822 Subgen. Italorrhynchus Magrini, 2019 from Umbria (Coleoptera, Curculionidae, Entiminae) - A new species of Otiorhynchus Germar, 1822 (Subgen. Italorrhynchus Magrini, 2019), the 40th known for this subgenus from Italy, is described from Mount la Pelosa (Polino, Terni, Umbria). You can compare morphologically the new species just with the four geographically closest relatives: O. (I.) fioronii Magrini, Meoli, Cirocchi & Abbazzi, 2003 from the caves near the Marmore Falls (Terni, Umbria); O. (I.) virginiae Magrini, Abbazzi & Cirocchi, 2001 from Cave Eolia (Terni, Umbria); O. (I.) sabinus Magrini, Meoli & Abbazzi, 2005 from Moggio (Contigliano, Rieti, Lazio), and O. (I.) petriolii Magrini & Degiovanni, 2016 from Mount Terminillo (Rieti, Lazio). It is easily distinguishable from the first by the toothless femora, the larger elytral areolae (not punctiform), the interspace between them as wide as their diameter, instead of being twice or more wider, more prominent pterygia, the longer cornus of spermatheca, differently shaped spiculum ventrale. From the second for the longer head and rostrum, the smaller eyes (3-4 ommatidia, instead of 9-10), the larger and, above all, deeper pronotal areolae, the deeper and reciprocally more distant elytral areolae. From the third for its small vestigial eyes (total absence of eye scars in O. sabinus), the much longer and thinner at base legs, metafemora and metatibiae especially, the longer pronotum and elytra, with differently shaped areolae, spermatheca with longer cornus. From the fourth for the longer legs and antennae, especially the scapus and metafemora (thinner at base), the rostrum dorsum convex instead of concave, the elytral areolae smaller, the interspace between them equal to their diameter (less than their diameter in O. petriolii). A greater difference compared to the other species more geographically distant.
