On the occurrence of Steinernema glaseri (Steiner, 1929) (Steinernematidae) and Heterorhabditis bacteriophora Poinar, 1976 (Heterorhabditidae) in Catalogne, Spain.

Summary - Infective stages of Sleinemema glaseri (Steiner, 1929) (Steinernematidae) and Helerorhabdilis baCleriophora Poinar, 1975 (Heterorhabditidae: Nematoda) were found in soil samples in Cabrils, Caralogne, Spain. The popu1ations of both ento­ mophagous nematodes present the same morphological and morphomerric characters as those of the original description and other known populations. The presence of S. glaseri is reported for the first time outside the Nearctic and NeotropicaJ regions. Laboratory tests show that the isolated populations of entomophagous nematodes are highly pathogenic among insects induced diseases in regional crops. Resume - Presence tU! Steinernema glaseri (Steiner) 1929) (Steinernernatidae) et d'Heterorhabditis bacteriophora Poinar} 1975 (Heterorhabditidae) cl Cabrils} Catalogne} Espagne - Des larves infestantes de Sleine17lema glaseri (Steiner, 1929) (Steinernematidae) et d'HelerOThabdilis blUleriophora Poinar, 1975 (Heterorhabditidae: Nematoda) ont ete observees dans des echantillons de sol recoltes a Cabrils, Catalogne, Espagne. Les populations des deux nematodes, presentent des caracteristiques morphologiques et morphomerriques semblables a celles deja connues. S. glaseri est signale pour la premiere fois hors des regions nearctique et neorropicale. Des essais effectues au laboratoire demonrrent que ces nematodes sont rres pathogenes vis-a-vis de divers insectes ravageurs des cultures communes de la region.