Animal remains were present in stomach contents of 6 of 13 fish species collected at 10 sites in freshwater streams on Moorea,French Polynesia. The eel Anguilla marmorata contained both freshwater and marine prey, and the eel Anguilla obscuracontained larvae of the pollution-tolerant rat-tailed maggots (Insecta : Diptera : Syrphidae). Fish stomachs contained prey notpreviously collected in these streams. There is clear habitat partitioning between the two most common stream fish. The spottedflagtail, Eleotris fusca, feeds benthically and stomachs contains large numbers of neritid and thiarid snails. The sleeper, Kuhliamarginata, feeds primarily on surface drift, with ants being the most common prey item. The freshwater fish of Moorea havefew parasites relative to those found in Hawaiian Island stream fishes.

About 70 insects and five mites regularly or occasionally infest the cotton crop in subtropical Africa. The economic importance of these pests varies according to the climate and cropping pattern in the region. Cotton aphid, Aphis gossypii Glover and yellow tea mite, Polyphagotarsonemus latus (Banks) as foliage feeders and three bollworms, Pectinophora gossypiella Saunders, Diparopsis watersi Roths, and Heliothis armigera Hbn., during boll formation and development, are major pests. Pesticides have been used extensively to suppress the pest populations and infestation levels in the crop. Natural enemies of certain pests occur in the region, nevertheless, their effectiveness in pest control is not well-known or fully exploited. Research on yield loss evaluation, pest ecology, varietal resistance and cultural practices is underway in several countries. Therefore, a global pest management in cotton is discussed in the context of local conditions and perspectives are highlighted.

La recherche de topotypes de Rhithrogena nivata (Eaton, 1871) a permis de retrouver cette espèce pour la première fois depuis sa description. Des imagos [math] et [math] ont été obtenues par élevage de larves. Les genitalia des [math] sont identiques à ceux du seul exemplaire restant de la série type (lectotype, British Museum). Les imagos sont redécrites.