The rare central European beetle Isorhipis marmottani (Bonvouloir, 1871) is here reported for the first time from Italy (Emilia Romagna/Tuscany regions, Sasso Fratino Integral Nature Reserve). The currently known distribution, ecology, and biology, as well as the habitat of the species in the study area are briefl y discussed

Biscaccianti, Alessandro Bruno

Giuliano Grimaldi, Enrica

English

Riviste Online SApienza - R.O.SA - 2 (Sapienza University of Rome)

125© Author (s) E-ISSN 2284-4880ISSN 0429-288X 4.0 INTERNATIONALIntroductionIsorhipis Boisduval & Lacordaire, 1835 is a Holarctic ge-nus of the tribe Melasini (Muona 2010), with seven spe-cies currently recognized for the Palearctic region, three of which occurring in Europe and only one, I. melasoides(Laporte de Castelnau, 1835), so far known from Italy (Muona 2007). The three European species of Isorhipis, namely I. marmottani (Bonvouloir, 1871), I. melasoides, and I. nigriceps (Mannerheim, 1823), are very similar to each other and often diffi cult to identify without exami-nation of the male genitalia (Muona 1995). Isorhipis mar-mottani has never been reported from Italy so far.The ancient beech forest of “Sasso Fratino”, where the species was discovered, is located in the Northern Tus-can-Emilian Apennines, close to the border area between the regions of Emilia Romagna (province of Forlì-Cese-na) and Tuscany (province of Arezzo). It is the fi rst Inte-gral Nature Reserve established in Italy in 1959 (Bottacci 2009). It is currently managed by Carabinieri Biodiversity Department of Pratovecchio and has become part of the UNESCO World Heritage site “Ancient and Primeval Beech Forests of the Carpathians and Other Regions of Europe” in 2017.Materials and MethodsThe Carabinieri Biodiversity Departments of Pratovec-chio, Belluno and Verona, and Carabinieri National Centre for Biodiversity “Bosco Fontana”, started a monitoring project to investigate the saproxylic beetle community of  Sasso Fratino Integral Nature Reserve with the support of the LIFE ESC360 project (LIFE17 ESC/IT/000001), in the framework of which several specimens of Eucnemidae were sampled.The specimens here reported were collected using fl ight intercept window traps baited with 70% ethanol. The traps were exposed from April to October in 2021 and the contents were collected approximately every two weeks by volunteers of the LIFE ESC360 project (Dal Cortivo 2024).Two males were dissected for a more accurate identi-fi cation (Muona 1995): the genitalia of one of them were embedded in DMHF resin (Steedman 1958), mounted on a transparent acetate sheet, and pinned with the relevant specimen; those of the other male were preserved in glyc-erol in a microvial pinned with the relevant specimen.Nomenclature of Eucnemidae follows Muona (2007); botanical nomenclature follows Bartolucci et al. (2018).Fragmenta entomologica, 57 (1): 125-128 (2025)Short scientifi c noteSubmitted: May 27th, 2025 - Accepted: June 18th, 2025 - Published: June 30th, 2025DOI: 10.13133/2284-4880/1795First records of the false click beetle Isorhipis marmottani from Italy(Coleoptera: Eucnemidae)Alessandro B. BISCACCIANTI1,*, Enrica GIULIANO GRIMALDI21 Laboratorio di Entomologia ed Ecologia Applicata, Department PAU, Mediterranea University of Reggio Calabria, Salita Melissari, I-89124 Reggio Calabria, Italy – alessandro.biscaccianti@unirc.it2 Via Lido Sacramento 39/3, I-96100 Siracusa, Italy – enricagiulianogrimaldi@gmail.com* Corresponding authorAbstractThe rare central European beetle Isorhipis marmottani  (Bonvouloir, 1871) is here reported for the fi rst time from Italy (Emilia Romagna/Tuscany regions, Sasso Fratino Integral Nature Reserve). The currently known distribution, ecology, and biology, as well as the habitat of the species in the study area are briefl y discussed.Keywords: saproxylic beetles, Eucnemidae, Italy, new records, Sasso Fratino Reserve.Biscaccianti & Giuliano Grimaldi126Figs 1-2 – Male (1) and female (2) of Isorhipis marmottani (Bonvouloir, 1871) (photos: courtesy of T. Németh).Isorhipis marmottani in Italy127Acronyms of repository collections:ABB A.B. Biscaccianti’s personal collection, Baschi, Italy.CNCB Carabinieri National Centre for Biodiversity, Marmirolo, Italy.ResultsIsorhipis marmottani (Bonvouloir, 1871)Material examined. Italy: Emilia-Romagna, Foreste Casentinesi, Monte Falterona, and Campigna National Park, Bagno di Romagna (Forlì-Cesena province), RNS Sasso Fratino, Poggio Scali, 43.84766°N, 11.78954°E, 1395 m, 16-30 Jun 2021, window trap AW7, 1 ♂ (ABB); Emilia-Romagna, Foreste Casentinesi, Monte Falter-ona, and Campigna National Park, Bagno di Romagna (Forlì-Cesena province), RNS Sasso Fratino, Poggio della Cornioleta, 43.84361°N, 11.83067°E, 820 m, 16-30 Jun 2021, window trap BW1, 1 ♂ (ABB); Emilia-Romagna, Foreste Casentinesi, Monte Falterona, and Campigna Na-tional Park, Bagno di Romagna (Forlì-Cesena province), RNS Sasso Fratino, Poggio della Cornioleta, 43.84338°N, 11.83039°E, 831 m, 16-30 Jun 2021, window trap BW2, 1 ♂ (CNCB); Emilia-Romagna, Foreste Casentinesi, Monte Falterona, and Campigna National Park, Bagno di Romagna (Forlì-Cesena province), RNS Sasso Fratino, Poggio della Cornioleta, 43.84210°N, 11.82833°E, 842 m, 16-30 Jun 2021, window trap BW5, 1 ♂ (ABB); Emil-ia-Romagna, ibidem, 30 Jun - 14 Jul 2021, window trap BW5, 1 ♀ (ABB).DiscussionIsorhipis marmottani (Figs 1-2) exhibits a Centraleurope-an chorotype (sensu Vigna Taglianti et al. 1999), extended westwards to central France and southwards to north-west-ern Turkey and northern Caucasus (Muona 2007; Lesei-gneur 2014; Sürgüt & Varli 2023).The ecology and biology of the three European species of Isorhipis appear substantially similar: they are strict-ly xylophagous and linked to dead hard wood in broad-leaved forests (Dorn 1940; Leseigneur, 1968; Leiler 1976 [but see Muona 1995]; Lucht 1985a, 1985b; Muona 1993, 1995, 2021; Van Meer 1999). The habitat of I. marmot-tani in the study area is represented by montane forests dominated by Fagus sylvatica L., with Acer pseudoplat-anus L. and Sorbus aucuparia L. above 1300 m, referred to as Galeopsi-Fagetum association, or mixed beech and beech-fir forests with Abies alba Mill., Acer spp., Carpi-nus betulus L., Fraxinus excelsior L., Tilia spp., Ulmus glabra Huds., between 800 and 1300 m, referred to differ-ent alliances (Gonnelli et al. 2009). In the site of “Sasso Fratino”, adults of the species were active from mid-June to mid-July.It should be noted that in the study area Isorhipis mar-mottani unusually occurs simpatrically with nine other species of Eucnemidae: Microrhagus lepidus Rosenhauer, 1847, M. pygmaeus (Fabricius, 1792), Hylis simonae (Ol-exa, 1970), I. melasoides, Melasis buprestoides (Linnae-us, 1761), Eucnemis capucina Ahrens, 1812, Dromaeolus barnabita (A. Villa & G.B. Villa, 1837), and Nematodes filum (Fabricius, 1801) were found in the same traps to-gether with I. marmottani, while Xylophilus corticalis (Paykull, 1800) was found in the beech forest of “Poggio Scali”, like I. marmottani, but in a different trap. To our knowledge, no species of Eucnemidae have been previ-ously reported for the Sasso Fratino Integral Nature Re-serve (Cianferoni et al. 2009).Acknowledgements – The authors thank the staff of the Cara-binieri National Centre for Biodiversity “Bosco Fontana” and of the Carabinieri Biodiversity Department of Pratovecchio for providing the opportunity to study the specimens. 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First records of the false click beetle Isorhipis marmottani from Italy (Coleoptera: Eucnemidae)

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First records of the false click beetle Isorhipis marmottani from Italy (Coleoptera: Eucnemidae)

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