Diplacodes lefebvrii (Rambur, 1842) is a libellulid dragonfly, which is common and widespread in Africa and across the Indian Ocean. While this species is fairly common in the south and east of the Mediterranean, its European range is confined to Cyprus, the island of Rhodes and the south of the Iberian Peninsula. Here we report the first record of D. lefebvrii for Italy, which was captured near Cagliari (Sardinia) on 11.IX.2013. In October 2014, a population of the same species was observed at a small wetland on the island "Isola di San Pietro" (Sardinia). Here the observed sex ratio of D. lefebvrii was strongly biased in favour of females and only a single male was observed.

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Viene descritta <em>Triodontella mimula</em> n. sp. della Sardegna occidentale (locus typicus.: Oristano, foce fiume Tirso), affine a <em>T. raymondi</em> (Perris, 1869) ma nettamente distinta per la forma dei parameri. Viene definito su base morfologica il gruppo naturale di specie di <em>Triodontella raymondi</em> e si discute l’ecologia e la faunistica di <em>T. mimula n</em>. sp. e<em> T. raymondi</em>, evidenziandone la vicarianza in Sardegna.

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Abstract. All the information on the genus Eledonoprius was gathered to provide an up to-date overview of the geographical distribution and ecology of its species, and to assess their association with old-growth forests. Based on recent samples collected in deciduous forests and woodlands of Italy, the authors outline the habitats of these rare species and give an account of their trophic relations with bracket fungi. E. armatus is recorded in Central Italy and Sardinia for the first time; E. serrifrons is new to Basilicata (Southern Italy) and Syria.