Corps linéaire, allongé, convexe, tête et antennes noires, pronotum brun-noir bordé de ferrugineux, élytres brun ferrugineux. La pubescence blanchâtre fine et courte est peu visible. Chez le mâle, les antennes longues et dentées à partir du 4e article dépassent de quatre article le bord postérieur du pronotum qui est convexe, un peu plus long que large avec les pointes postérieures aigues et fortement divergentes. La ponctuation du pronotum est forte et dense. Les pattes sont brunes. La femelle est plus massive avec les antennes dépassant à peine le bord postérieur du pronotum.
Détermination
Très difficile.
Espèces proches
Le genre Athous comprend 49 espèces en France. A de rares exceptions près, elles ne sont déterminables avec certitude que par un examen minutieux des tarses, des antennes et de l'édéage. De nombreuses espèces sont localisées en montagne.
Période d'observation
Les adultes s'osbervent en mai-juin.
Biologie - éthologie
La larve est terricole. Les adultes se rencontrent en fauchant la végétation basse en sous-bois clair.
Biogéographie et écologie
Endémique du Pays basque français à basse altitude.
Sources
Leseigneur, L. 1972. Coléoptères Elateridae de la faune de France continentale et de Corse. Bulletin mensuel de la Société Linnéenne de Lyon (supplément au numéro de février 1972) 41 : 1-381. Leseigneur, L., Artero, A., Bouyon, H. & Ollagnon, J.L. 2024. Coléoptères Elateridae de France continentale et de Corse. Mise à jour de la nomenclature et catalogue illustré. Conflans Sainte Honorine. Magellanes : 440 p.
The map presents a summary at the 10 x 10 km grid of the observation data for the species transmitted to the SINP. These data have been subjected to validation filters.
Distribution map from the Atlas of Departmental Biodiversity and Marine Sectors program
Current distribution in metropolitan France
The map presents a reference distribution layer of the species at the scale of departments and marine sectors. The presence and absence data were established by expertise within a network of partners. This reference distribution is used in the validation process of the SINP data at the INPN level.
Distribution map from the Atlas of Departmental Biodiversity and Marine Sectors program
Certain presence
Corresponds to a report on the basis of at least one observation proved within a period of 10 years (20 years for little-known invertebrates) preceding the year and no presumption of extinction since obtaining the last data nor doubt on reproductive and implemented nature of this population. For migratory species, the presence indicated concerns areas of reproduction.
Probable presence
This status is based on one or more of the following criteria:
search of species incomplete but presence of supportive environments;
ecology of the species consistent with the hypothesis of his presence;
the last reliable sighting is older than 10 years compared to the reference date, no recent specific research and no presumption of extinction from that date [vertebrates, invertebrates and plants well studied (rhopalocera, grasshoppers, dragonflies ...)] ;
the last reliable observation being older than 20 years, no recent specific research and no presumption of extinction from that date [poorly known taxa: fungus, many invertebrates...].
Probable or certain absence
This point covers the absence, more difficult by nature to demonstrate than presence. This status is based on one or more of the following criteria:
intensive but unsuccessful targeted research;
lack of adequate environments;
unobserved species while its presence is easily detected;
unlikely presence for historical or biogeographical reasons.
This status must be assigned to a department in which the presence of the species is casual.
Absence due to a proven extinction
Particular case of absence due to a proven extinction less than a half century ago (older disappearances are treated as "no probable or definite").
No information
In the state of knowledge, we can not comment on the presence or absence in the current department. This is the default status when not comprised in one of the previous categories or whenever there is doubt.
French Version
