DIVERSITY OF APHIDS (HEMIPTERA, APHIDOIDE A) IN CHILE

Since the review of Smith & Cermeli (1979) no overall update has been published on aphid species present in Chile. Introduced aphid species of the family Aphididae that should be incorporated to Smith & Cermeli (1979) are 41, while citations and descriptions of native species of Aphididae have increased by 14. In addition, information about Adelgid ae and Phylloxeridae is given. In this work the following species are cited by first time for Chile: Appendiseta robiniae (Gillette, 1907) ( Aphididae: Drepanosiphinae), Brachycaudus rumexicolens (Patch, 1917) ( Aphididae: Aphidinae), Eulachnus rileyi (Williams, 1910) (Aphididae: L achninae) and Rhopalosiphoninus latysiphon (Davidson, 1912) (Aphididae : Aphidinae). The analysis of the available information yields 135 spe cies reported to date, with only 31 native species (23%), that have be en described either from Chile or from neighbouring countries and subs equently found in Chile. The percentage of species endemic to Chile is 74.2% (23 species). The information is discussed in biogeographical t erms and some predictions about native aphid species richness in Chile are made.