Rugilus (Rugilus) geniculatus (Erichson, 1839)

Ferreira, Raul Nascimento, 2021, The genus Rugilus Leach, 1819 in the Portuguese fauna (Coleoptera: Staphylinidae: Paederinae), Arquivos Entomolóxicos 24, pp. 243-248 : 245

Rugilus (Rugilus) geniculatus (Erichson, 1839)

Material examined: ( Ferreira, 2021).

Douro Litoral, Porto, Porto, PaÇos de Ferreira, Penamaior , 3 ex.

( PRNC)

Distribution: See Sch̡lke & Smetana (2015). Distribution in Portugal: Beja, Castelo Branco, Lisboa, Porto, Vila Real.

Remarks: Length 5- 5,5 mm. Species black with posterior margins of elytra brown-yellowish. Legs, antennae and mouth parts yellow-reddish. Head, pronotum and elytra slightly longer than wide, but elytra wider than head. For a more complete description see Coiffait (1984). Aedeagus as in Fig. 4. The species displays two peaks, one in May and the other in September. Larvae unknown. Adults found along brooks and river margins, in wet substracts and decaying plant materials. Barros (1913) reported this species from S. MArtinho d‟AntA. Fuente (1922) and Seabra (1943) refer to Barros (1913) as the one that mentions the species for Portugal. Ferreira (1962) recorded the species for Portugal without any locality. Rougemont (1988) refers the species from Beja. Gamarra & Outerelo (2020) mention the species from Baixo Alentejo e Castelo Branco. Also referred for Portugal in the Palaearctic Catalogue (Sch̡lke & Smetana, 2015). There is one specimen from Lisboa, Alvalade, collected in 31-May-2000 and identified by Pedro MendonÇa ( Lopes et al., 2019), but it was not possible to confirm the identification.