Nuovi dati faunistici su Tenebrionidi dell'Arcipelago Toscano (Coleoptera Tenebrionidae)

Vengono forniti nuovi dati sulla distribuzione nell'Arcipelago Toscano di 19 specie di Tenebrionidae. Dichillus corsicus (Solier, 1838) risulta nuovo per l'isola di Montecristo, l'Arcipelago Toscano e la regione Toscana; Eledona agricola (Herbst, 1783), Palorus depressus (Fabricius, 1790), Uloma culinaris (Linnaeus, 1758), Diaperis boleti (Linnaeus, 1758), Pentaphyllus chrysomeloides (rossi, 1792), Corticeus pini (Panzer, 1799) e Scaphidema metallica (Fabricius, 1792) sono segnalati per la prima volta per l'Isola d'Elba e l'Arcipelago Toscano; Phaleria acuminata acuminata Küster, 1852 viene segnalata per la prima volta per Pianosa e Arcipelago Toscano; Dichillus minutus (Solier, 1838) viene segnalato per la prima volta per Cerboli, Dichillus tyrrhenicus Leo, 2008 e Gonocephalum obscurum obscurum (Küster, 1849) per Pianosa, Alphitobius diaperinus (Panzer, 1797) per l'Elba, Catomus rotundicollis (Guérin-Méneville, 1825) per Cerboli e Gorgona, Colpotus strigosus strigosus (A. Costa, 1847) per il Giglio, Crypticus gibbulus (Quensel, 1806) e Phaleria bimaculata bimaculata (Linnaeus, 1767) per Montecristo; vengono inoltre resi noti i primi reperti di tre specie di Tenebrionidae per l'isolotto di Palmaiola: Nalassus planipennis (Küster, 1850), Dendarus coarcticollis (Mulsant, 1854) e Colpotus strigosus strigosus. Le tribù Bolitophagini , Ulomini (sottofamiglia Tenebrioninae), Hypophlaeini e Scaphidemini (sottofamiglia Diaperinae) sono anch'esse nuove per l'Arcipelago Toscano. Viene anche illustrato l'habitus delle tre specie del genere Dichillus Jaquelin Du Val, 1861 presenti nell'arcipelago

Peritelini nuovi o interessanti della fauna w-paleartica. XXVI Una nuova Pseudomeira del gruppo sardoa (Coleoptera Curculionidae Entiminae)

Viene descritta una nuova Pseudomeira del gruppo sardoa: abbazzii dell'isola di Pianosa; disegni di parti tassonomicamente significative completano il lavoro

Rise and fall of island butterfly diversity : understanding genetic differentiation and extinction in a highly diverse archipelago

Aim. We describe fine-scale diversity patterns of the entire butterfly fauna occurring on the Tuscan Archipelago. By assessing the traits associated with population diversification, haplotype uniqueness and extinction, we aim to identify the factors determining the origin and maintenance of genetic diversity, and population vulnerability to environmental changes. Location. Tuscan Archipelago, Sardinia, Tuscany (Italy) and Corsica (France). Methods. We built a mtDNA dataset (1,303 COI sequences) for the 52 butterfly species reported in the Archipelago, also including specimens from neighbouring areas, and compiled data on 12 species traits and on the apparent extinction of species from the main islands. We calculated indices that measure genetic differentiation, and using phylogenetic regressions we evaluated the relationships between these indices and species traits. Finally, we inferred which traits are associated with disappearance of species on individual islands using phylogenetic regression. Results. The overall spatial pattern of genetic diversity corresponded with the proximity of the areas, but strong contrasts were also identified between geographically close areas. Together with the island endemics, several common and widespread species had a high genetic diversification among islands and mainland. Phylogenetic regressions revealed that smaller-sized, more specialized species, with a preference for drier regions, displayed greater genetic structure and/or haplotype uniqueness. Species that disappeared from islands had a higher population diversification. Capraia has experienced a notable loss of diversity, which significantly affected species with shorter flight periods. Main conclusions. Tuscan island butterflies are characterized by strong genetic contrasts and species differ in their contribution to the overall genetic diversity. By ranking the species for their contribution to genetic diversity and identifying the traits linked to the emergence and maintenance of diversity, we have developed a valuable tool for prioritizing populations as targets for monitoring and conservation action. The dataset constructed also represents a valuable resource for testing biogeographical hypotheses

Trigonorhinus zeae (Wolfrum, 1931) nuova specie introdotta per Italia e per l'Europa continentale (Coleoptera: Curculionoidea: Anthribidae)

The presence in Italy and in continental Europe of alien species Trigonorhinus zeae (Wolfrum, 1931), is reported for the first time

New and Interesting Records of Coleoptera from Northeastern Italy and Slovenia (Alexiidae, Buprestidae, Carabidae, Cerambycidae, Ciidae, Curculionidae, Mordellidae, Silvanidae)

Ruzzier, Enrico, Morin, Lucio, Glerean, Paolo, Forbicioni, Leonardo (2020): New and Interesting Records of Coleoptera from Northeastern Italy and Slovenia (Alexiidae, Buprestidae, Carabidae, Cerambycidae, Ciidae, Curculionidae, Mordellidae, Silvanidae). The Coleopterists Bulletin 74 (3): 523-531, DOI: 10.1649/0010-065X-74.3.523, URL: http://dx.doi.org/10.1649/0010-065x-74.3.52

Giavarhynchus amicorum Bello, Osella & Ruzzier 2021, sp. n.

<i>Giavarhynchus amicorum</i> Bellò, Osella & Ruzzier sp. n. <p>(Figures 2a, 2b, 2c, 2d, 2e, 2f)</p> <p> <b>Type series.</b> <i>Holotype</i>. Female with labels: [genitalia in DHMF] [transparent card] / ♀ [w, p] / Grecia, nom.[os] Thesprotía, O. [ros] Paramithlăs [Paramythyás], Agia Mavra, 620m, N 39°30’06.8” E 20°30’06.3”, 23.VI.2014 - 20.IX.2015, Giachino & Vailati leg. [w, p] / Collezione Cesare Bellò, Castelfranco Veneto [g, p] / <i>Giavarhynchus amicorum</i> Holotype det. Bellò & Osella, 2020 [r, p] / esemplare fotografato by Francesco Sacco [y, p] (GOPC). <i>Paratype.</i> Female with labels: [genitalia in DHMF] [transparent card] / ♀ [w, p] / Grecia, nom. [ros] Thesprotía, O. [ros] Paramithlăs [Paramythyás], Agia Mavra, 620m, N 39°30’06.8” E 20°30’06.3”, 23.VI.2014 - 20.IX.2015, Giachino & Vailati leg. [w, p] / Collezione Cesare Bellò, Castelfranco Veneto [g, p] / <i>Giavarhynchus amicorum</i> Paratype det. Bellò & Osella, 2020 [r, p] / esemplare fotografato by Francesco Sacco [y, p] (CBPC).</p> <p> <b>Holotype.</b> Body elongate, size: 8.00 mm (TL), 6.60 mm (BL). Integument blackish-brownish, dull or weakly glossy, with antennae and tarsi lighter, only with sparse setae on head and slightly longer setae on pronotum and elytra.</p> <p> <i>Rostrum</i> elongate (RL: 1.60 mm, RW: 0.60 mm, RL / RW: 2.67). Forehead (FW / MW: ratio 1.60) slightly convex in lateral view.</p> <p> <i>Antennae</i> quite elongate (SL: 1.40 mm, FL: 2.10 mm, SL/ FL: 0.67). Funicle 7-segmented, all segments with very thin and elongate setae, their relative lengths are: 0,34 mm, 0.32 mm, 0.20 mm, 0.20 mm, 0.15 mm, 0.18 mm, 0.18 mm, the club is 0.60 mm.</p> <p> <i>Pronotum</i> longer than wide (PL: 1.90 mm, PW: 1.80 mm, PL / PW: 1.06).</p> <p> <i>Elytra</i> elongate-oval (EL: 4.80 mm, EW: 2.80 mm, EL / EW: 1.72). Elytral declivity inclined at about 60 degrees down the dorsal plane of elytra.</p> <p> <b>Paratype.</b> The paratype is similar to the holotype but differs in size (TL: 7.30 mm, BL: 5.60 mm, RL: 1.30 mm, RW: 0.50 mm, RL/RW: 2.60; SL: 1.30 mm, FL: 2.00 mm, SL/FL: 0.65; PL: 1.80 mm, PW: 1.70 mm, PL / PW: 1.05, EL: 4.40 mm, EW: 2.60 mm, EL / EW: 1.70).</p> <p> <b>Etymology.</b> Amicorum is the genitive plural of the Latin word “amicus” (= friend). The authors are pleased to name this species for their friendship with Pier Mauro Giachino and Dante Vailati, collectors of the type series (Fig. 3b).</p> <p> <b>Reproduction.</b> Since only two females are known it is impossible to say whether the species is bisexual or parthenogenetic like several other Palaearctic otiorhynchines.</p> <p> <b>Collecting conditions.</b> Both specimens of <i>G. amicorum</i> were collected using endogean pitfall traps placed in a calcareous environment covered by degraded Mediterranean shrub on the SSW slope of Mount Paramythyás, at 620 meters of elevation. The traps were set on 23 rd June 2014 and recovered on 20 th September 2015. It is plausible that the new species has a biology similar to those of other endogean weevils, which have rhizophagous adults and larvae developing inside roots, not necessarily in the deepest part of the soil.</p> <p> <b>Distribution.</b> <i>Giavarhynchus amicorum</i> is known only for the type locality (Figs 3a, 4b).</p>Published as part of <i>Bello', Cesare, Colonnelli, Enzo, Forbicioni, Leonardo, Osella, Giuseppe & Ruzzier, Enrico, 2021, A new genus and species of anophthalmous Otiorhynchini from Greece, with a new synonymy and new combinations (Coleoptera: Curculionidae, Entiminae), pp. 69-84 in Zootaxa 4938 (1)</i> on page 75, DOI: 10.11646/zootaxa.4938.1.3, <a href="http://zenodo.org/record/4561366">http://zenodo.org/record/4561366</a&gt

An updated inventory of the vascular flora of Elba island (Tuscan Archipelago, Italy)

We present an updated list of the vascular flora occurring on Elba island (Tuscan Archipelago). The list is based on bibliographic analysis and field studies carried out in the years 2006–2018. With a total of 1,098 specific and subspecific taxa currently occurring on the island (including 101 naturalized aliens), plus 67 casual aliens and 16 hybrid taxa, Elba shows the highest number of species among the islands of the Tuscan Archipelago. Two taxa are new for Tuscany: Hieracium symphytaceum s.l. and Ophrys exaltata subsp. morisii; 22 taxa are new for the island, 34 have been confirmed, while 326 were reliably recorded previously by other authors, but not confirmed by our study. We excluded 41 taxa and considered doubtful the occurrence of 87. Life forms and chorotypes are in agreement with the Mediterranean climate of the island. Despite this, Elba also hosts a considerable proportion of Eurosiberian taxa. We detected significant differences in chorotypes and life forms spectra among different geographical portions of the island, paralleling distinct bioclimatic patterns. Despite the institution of the Tuscan Archipelago National Park, we are still far from an integrated protection of the island flora. Based on our results, it has been possible to arrange a geodatabase of the flora on the island, useful for its protection

Giavarhynchus Bello, Osella & Ruzzier 2021, gen. n.

<i>Giavarhynchus</i> Bellò, Osella & Ruzzier gen. n. <p>(Figs 1 a-1n)</p> <p> Type species. <i>Giavarhynchus amicorum</i> Bellò, Osella & Ruzzier <b>sp. n</b>.</p> <p> <b>Diagnosis.</b> Blind, large-sized (7.3-8.0 mm) Otiorhynchini easily distinguishable from all other genera by the following combination of characters: elongate rostrum with a ventral transverse furrow and excised lateral margins located at apical third (Figs 1 d-1e), punctation of pronotum of two distinct sizes arranged in a distinctive pattern (figs. 1a, 1b, 2a, 2c, 2f), interval 7 of elytra crenulate in basal eighth (figs 1a, 1g, 2a); by metafemora bearing a spine-like tooth placed at apex of distal third and much larger than that of pro- and mesofemora (Fig. 1a, 2a); tibiae of female granulate on inner margin, granules particularly strong on the bisinuous mesotibiae (figs 1a, 1c, 1f); and tarsi thin and elongate, segment 3 only slightly wider than the preceding two (figs 1a, 1c).</p> <p> <b>Description.</b> <i>Body</i> elongate (TL: 7.30–8.00 mm; BL: 5.60–6.60 mm), colour brownish-black, dull or weakly glossy, antennae and legs paler.</p> <p> <i>Head</i> globular and smooth. Rostrum elongate (RL: 1.30–1.60 mm, RW: 0.50–0.60 mm, RL/RW: 2.60–2.67), regularly curved from base to apex. Scrobes deep, completely visible in dorsal view. Pterygia evident. Rostrum ventrally in apical third with deep transverse furrow. Apex of rostrum with sparse raised short setae. Upper surface of mesorostrum with setae on both sides, carinae sub-parallel to the lateral margin. Epistome absent. Genae elongate, scarcely punctured. Mandibles in horizontal plane, with scar indicating point of attachment of deciduous cusps; mandibular scars present. Eyes absent. Forehead (FW / MW: ratio 1.50–1.60) in lateral view slightly convex, intraocular pit not visible. Submentum without pappolepida.</p> <p> <i>Antennae</i> long and thin (SL: 1.30–1.40 mm, FL: 2.00– 2.10 mm, SL/FL: 0.65–0.67). Scape about 4-5 times as long as wide, straight, with widened and curved apex. Funicle with 7 antennomeres, all with fine setae. Relative length of antennomeres 1-7 of funicle, in millimetres: 0.32–0.34, 0.30–0.32, 0.18–0.20, 0.18–0.20, 0.12–0.15, 0.16–0.18, 0.16–0.18; length of antennal club: 0.58–0.60. Club fusiform, as long as the last four funicular antennomeres, almost 3 times as wide as the funicle, basal antennomere of club elongate and glabrous, the remaining two with golden pubescence and some thin, long setae.</p> <p> <i>Pronotum</i> longer than wide (PL: 1.80–1.90 mm, PW: 1.70–1.80 mm, PL/PW: 1.05–1.06) with strongly rounded margins, widest at middle, anterior and posterior margins straight, the anterior one much narrower than the posterior margin. Disc with irregularly placed large and fine punctures bearing long erect setae; punctures more distant from each other than on sides; interspaces between punctures often shiny and microreticulate.</p> <p> <i>Elytra</i> dorsally almost glabrous, slightly shining, in dorsal view oval-elongate, in lateral view slightly vaulted (EL: 4.40–4.80 mm, EW: 2.60–2.80 mm, EL/EW: 1.70–1.72). Elytra slightly convex, widest at middle of moderately rounded sides, not fused but suture ill defined. Humeri protruding, angular and toothed (Fig. 1g). Wings absent. Each elytron with nine complete striae; seventh stria raised and prominent particularly at humeri. Interstriae convex, with 10 to 20 punctures and with sparse thin setae. Elytral declivity from 60 to 75 degrees.</p> <p> <i>Legs</i> long, slender, with long setae, and more or less large tooth on each femur. All femora clubbed at middle, tooth of metafemur very large and with four to five small tooth-like tubercles. All tibiae mucronate, with fringe of thick golden setae on inner apical angle, protibia with distinct inner apical grooming brush, tarsomere 1 elongate, conical, 2 short and transverse, 3 deeply bilobed; all tarsomeres with thin golden setae. Onychium curved, thin and elongate.All coxae globular, procoxae almost connate, mesocoxae separated by a space almost equal to the diameter of a mesocoxa, metacoxae separated by a space about three times their diameter.</p> <p> <i>Abdomen</i> shiny, slightly rugose, finely punctured; each puncture bearing a short seta.</p> <p> <i>Male terminalia.</i> Unknown.</p> <p> <i>Female terminalia.</i> Female genitalia as in figs: (1i) spermatheca; (1l) VIII sternite; (1m) III- VII sternites; (1n) gonocoxites. Gonocoxite small, rather slender, weakly sclerotized, evenly tapered apicad, stylus elongate, with tuft of 4–6 setae at apex. Sternite VIII with long, straight and slender apodeme terminating just at base of plate, creating a short basal margin. Plate of sternite VIII trapezoid and with longitudinally developed arms, apical margin welldefined, armed with fringe of setae. Spermatheca sclerotized, small, slender, cornu slender, corpus small, ramus slightly longer than wide, nodulus smaller, hump-shaped.</p> <p> <b>Etymology.</b> The new genus is named after our friends and colleagues Pier Mauro Giachino and Dante Vailati (World Biodiversity Association, Verona, Italy), collectors of the type material. The name is a combination of their surnames initial Gia[chino]Va[ilati] and [Otio]rhynchus, a supposedly closely related weevil genus, resulting thus in <i>Giavarhynchus.</i> Gender masculine.</p> <p> <b>Remarks.</b> The lack of or extreme reduction of eyes is not such an uncommon feature among the soil-dwelling Entiminae. Morrone & Hlaváč (2017) listed all world taxa of such entimines presently known, which occur in seven tribes: Celeuthetini Lacordaire, 1863 (genera <i>Genavius</i> Osella, 1983 from New Caledonia and <i>Guineobius</i> Osella, 1983 from New Guinea), Laparocerini Lacordaire, 1863 (some species of <i>Laparocerus</i> Schoenherr, 1834 from the Canary Islands and Madeira), Pachyrhynchini Schoenherr, 1826 (genus <i>Schauenbergia</i> Osella, 1977 from Réunion), Peritelini Lacordaire, 1863 (genera <i>Hobarypeithes</i> Hustache, 1939 and some species of <i>Dysommatus</i> Marshall, 1933, both from Africa, plus <i>Solariola</i> Flach, 1908, and <i>Troglorhythmus</i> Alziar & Lemaire, 2008 both from Europe); Sciaphilini Sharp, 1891 (genus <i>Abarypeithes</i> Hustache, 1939 from Africa), Typhlorhinini Kuschel, 1954 (genera <i>Cambefortinus</i> Richard, 1986, <i>Cephalorostris</i> Richard, 1979, <i>Hopactorrhynchus</i> Richard, 1953 and <i>Scrobops</i> Richard, 1979 from Madagascar and West Africa), and Otiorhynchini (five taxa from the Palaearctic). Among these last, although one or another of the features of <i>Giavarhynchus</i>, including lack of eyes, can be found in some Mediterranean otiorhynchines, the presence of all of the characters detailed in the diagnosis is unique to the genus described here. Firstly, the unusual deep rostral constriction is shared with both the Moroccan species <i>Otiorhynchus deceptorius</i> Białooki, Germann & Pelletier, 2017 and <i>Otiorhynchus incisirostris</i> Białooki, Germann & Pelletier, 2017 which were incidentally wrongly placed (Białooki <i>et al.</i> 2015) in the subgenus <i>Lixorrhynchus</i> Reitter, 1914 rather than in <i>Aranihus</i> Reitter, 1912 to which they evidently belong because (<b>new subgeneric placement</b>). Secondly, the ventral rostral furrow is also present in the Cretan genus <i>Mirorhynchus</i> Magnano, 2003. All the above cited taxa clearly have a shorter rostrum, well developed eyes and edentate (or almost so) femora and cannot be confused with <i>Giavarhynchus</i>. In particular, whereas both <i>Otiorhynchus</i> (<i>Aranihus</i>) <i>deceptorius</i> and <i>Otiorhynchus</i> (<i>Aranihus</i>) <i>incisirostris</i> appear also to be very different from <i>Giavarhynchus amicorum</i> on the basis of their very weakly granulate tibiae, lacking humeral tubercles, and granulate pronotum, <i>Mirorhynchus bellus</i> Magnano, 2003 from Crete (not from Cyprus as wrongly reported in the title of its description (Magnano 2003)), has a similar or even stronger tibial denticulation compared to that of <i>G. amicorum</i>, but on the inner margin of the protibiae instead of on the meso- and metatibiae. It is however immediately distinguishable by the squamiform-like punctation of pronotum, lack of humeral tubercles and oval shape (Germann <i>et al.</i> 2021). The loss of eyes is a morphological convergence of <i>Giavarhynchus</i> with <i>Baldorhynchus</i> Di Marco & Osella, 2002, <i>Ioniorhynchus</i> Magrini, Meoli & Abbazzi, 2005, and with some <i>Otiorhynchus</i> of the subgenera <i>Aranihus</i> Reitter 1912, <i>Cavernodes</i> Białooki 2015, <i>Italorrhynchus</i> Magrini, 2019, <i>Lixorrhynchus</i> Reitter, 1914 and <i>Troglorhynchus</i> F. Schmidt, 1854.</p> <p> <i>Giavarhynchus</i> is one of the nine genera or subgenera of micro-or anophthalmic subterranean weevils occurring in Greece (Morrone & Hlaváč 2017). Two of these are apparently endemic to this country, namely <i>Hauseriola</i> Osella, 1980 and <i>Giavarhynchus</i>, whereas the remaining six are not, namely <i>Absoloniella</i> Formánek, 1913, <i>Amaurorhinus</i> Fairmaire, 1860, <i>Ioniorhynchus</i> Magrini, Meoli & Abbazzi, 2005, <i>Otiorhynchus</i> Germar, 1822, <i>Styphloderes</i> Wollaston, 1873 and <i>Ubychia</i> Rost, 1893. <i>Giavarhynchus</i> is surely one of the most peculiar entimine genera due to its unique morphology, also being somewhat similar, although distantly related, to <i>Solariola</i> Flach, 1908 and <i>Troglorhythmus</i> Alziar & Lemaire, 2008, genera which include much smaller species and which are both presently placed in Peritelini (Bellò <i>et al</i>. 2019).</p> <p> The presence of a marked cuticular sculpture, tuberculate elytral humeri and strongly punctured elytral striae suggest a perhaps recent adaptation of <i>Giavarhynchus</i> to life in the superficial subterranean habitat. As in most endogean Otiorhynchini both elytra and elytral humeri are smooth.</p>Published as part of <i>Bello', Cesare, Colonnelli, Enzo, Forbicioni, Leonardo, Osella, Giuseppe & Ruzzier, Enrico, 2021, A new genus and species of anophthalmous Otiorhynchini from Greece, with a new synonymy and new combinations (Coleoptera: Curculionidae, Entiminae), pp. 69-84 in Zootaxa 4938 (1)</i> on pages 71-75, DOI: 10.11646/zootaxa.4938.1.3, <a href="http://zenodo.org/record/4561366">http://zenodo.org/record/4561366</a&gt