Sirdenus (Syrdenopsis) grayii
Creators: name: Muñoz-Santiago, José
name: Ortuño, Vicente M.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Sirdenus
Sirdenus grayii

description: Sirdenus (Syrdenopsis) grayii (Wollaston, 1862)
Figs 1A, 3A, 4A
Pogonus grayii Wollaston, 1862: 438.
Pogonus dilutus Fairmaire, 1873: 333.
Pogonus fulvus Baudi di Selve, 1864: 206.
Diagnoses
Tegument partially depigmented, testaceous. Pronotum longitudinal, as wide as or barely wider than the head. Elytra parallel and body almost cylindrical. Up to 4 setigerous pores with short setae along the 3 rd interstria. Legs shorter, in relation to the body, than in the rest of species.
Material examined
PORTUGAL • 5 specs; Ribatejo, Herdade do Pinheiro; C. de Barros leg.; MNCN.
SPAIN • 22 specs; Alicante, Albufera de Elche; Apr. 1934; C. Bolívar leg.; MNCN • 138 specs; same collection data as for preceding; no date; MNCN • 1 spec.; Alicante, Calpe; 7 Apr. 1918; Moroder leg.; MNCN • 3 ♂♂, 2 ♀♀; Alicante, Urbanova; 17 Apr. 1988; V.M. Ortuño leg.; VMO • 2 ♂♂, 1 ♀; same collection data as for preceding; 21 Apr. 1988; VMO • 2 ♂♂, 3 ♀♀; same collection data as for preceding; 28 Apr. 1988; VMO • 2 ♂♂, 1 ♀; same collection data as for preceding; 25 May 2001; VMO • 3 specs; Almería, Salinas de Cabo de Gata; 2 May 1842; E. Zarco leg.; MNCN • 1 spec.; Cádiz, San Fernando; 2 Jul. 1976; J. Ramírez leg.; MNCN • 2 specs; same collection data as for preceding; 13 Jul. 1976; J. Ramírez leg.; MNCN • 4 ♂♂, 8 ♀♀; Guadalajara, Santamera; 10 Aug. 2021; J. Muñoz-Santiago, V.M. Ortuño and E. Andrés Gómez leg.; JMS • 1 ♂, 2 ♀♀; same collection data as for preceding; 19 Aug. 2021; J. Muñoz-Santiago leg.; JMS.
Description
Habitus (Fig. 1A). Length: 4.0–5.0 mm. Head as wide as, or barely wider than the pronotum; supraocular sulcus short. Pronotum longitudinal, scarcely narrowed in its posterior region and with a long and smooth lateral sinuosity; hind angles obtuse, little or nothing protruding. Base of the pronotum without punctation; foveae little deep, no limited by a carinula but a longitudinal cleft. Elytra slightly wider than the pronotum. Striae with superficial punctation. The 9 th interstria is wider than the rest. Legs with a similar colour to the tegument. Prosternum covered by fine setae. Median lobe of the aedeagus rather short, with a straight base and the apex scarcely directed down (Fig. 3A).
Chorology
The genus, subgenus and species S. grayii are distributed principally in the Palaearctic Region (Europe, Asia and North Africa) but also in the Afrotropical Region (Bousquet 2017). Sirdenus grayii also occurs in the Canary Islands and Cyprus (Putzeys 1874; Jeanne 1986).
Ibero-Balearic distribution (Fig. 4A): in the Iberian Peninsula, the species is principally represented along the Mediterranean coast, but it is also present at some meridional Atlantic coastal localities. The interior records correspond to saline lagoons and saltmarshes from the Ebro valley (NE Spain) and the Southern Sub-plateau (SE Spain). It is known, with no precise records, from Los Monegros Desert (NE Spain) and other saline environments of Aragon (NE Spain; Vives & Vives 1978a, 1981, 1999; Vives 1998), Toledo (SE Spain; Vives & Vives 1981) and Alicante (E Spain; Vives & Vives 1978a). We also examined collection material labelled as coming from “Herdade do Pinheiro // Ribatejo”, an inland locality from Portugal crossed by the Tagus River. In the Balearic Islands, Sirdenus grayii is present in Mallorca.
Biology
Sirdenus grayii is present both in interior and coastal regions (Bolívar 1919; see Vives & Vives 1978a, 1981). This species is frequently associated with plants of the Salicornioideae and Arthrocnemetea groups (Sauleda 1985). The maximum activity period principally occurs in spring, but it has been found from March to July (Sauleda 1985; Andújar et al. 2002). Sirdenus grayii develops a sub-lapidicolous to endogean life (Machado 1992): it occupies abandoned galleries excavated by some species of the genus Bledius Leach, 1819 (Coleoptera, Staphylinidae). Its morphological appearance –tegument partially depigmented, cylindrical and stylised body, relatively short legs– could be interpreted as adaptations of a gallery-dweller (Sauleda 1985).
Bibliographic Ibero-Balearic records
Aistleitner & Lencina 2018; Andújar et al. 2002; Baehr 1988; Bolívar 1919; Español 1964; Jeanne 1968; Putzeys 1874; Sauleda 1985; Serrano et al. 2015, 2021; Vives & Vives 1978a; Zaballos & Jeanne 1994.
description: Published as part of Muñoz-Santiago, José & Ortuño, Vicente M., 2022, Revision of the tribe Pogonini (Coleoptera, Carabidae, Trechinae) from the Ibero-Balearic region, pp. 75-109 in European Journal of Taxonomy 846 (1) on pages 81-83, DOI: 10.5852/ejt.2022.846.1967, http://zenodo.org/record/7277247