Les Simulies (Diptera Simuliidae) du Sud-Ouest de l'Europe:le crénal et l'épirhithral

Abstract

Between 1984 and 1991, 114 stations belonging to the crenal or the epirhithral zone have been regularly visited inthe high South West European mountains (French and Italian Alps, Pyrenees and Iberic Sierras). Biogeographical and ecological observations. Among the 33 species collected, the most typical of the crenal zone are: P. (P.) latimucro, S. (N.) carpathicum, and S. (N.) oligotuberculatum that live at very high altitude; S. (N.) vernum, S. (N.) brevidens, S. (N.) quasidecolletum and S. (E.) petricolum in high mountain ous regions; S. (N.) costatum, S. (R.) lamachi and P. (P.) tomosvaryi at lower elevations and in the zone of the foothills. Species that live at low elevations in the Alps and Pyrenees can develop at higher altitudes in Andalusia (Spain) or High Atlas (Morocco), for exemple: S. (N.) costatum, S. (S.) intermedium, S. (R.) lamachi. © Gauthier-Villars, 1993.