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Brazilian Journal of Biology

Print version ISSN 1519-6984On-line version ISSN 1678-4375


ALEXANDER, B.; FREITAS, J. M.  and  QUATE, L. W.. Some Psychodidae (Diptera) from Atlantic Forest in South-Eastern Brazil, with descriptions of Trichomyia dolichopogon sp. nov. and Trichomyia riodocensis sp. nov.. Braz. J. Biol. [online]. 2001, vol.61, n.3, pp.467-474. ISSN 1519-6984.

The family Psychodidae includes the medically important phlebotomine sand flies and four other subfamilies that have been little studied in the Neotropics. The authors here report the results of a trip to collect psychodids in Parque Estadual do Rio Doce, a national park in Minas Gerais that contains one of the largest surviving areas of Atlantic Forest in Brazil. Collections made by Malaise and CDC light traps as well as from diurnal resting sites included 15 species of Psychodinae and Trichomyiinae, among them Trichomyia dolichopogon sp. nov., T. riodocensis sp. nov. and 13 other species new to science but represented by females only. Twelve species of phlebotomine sand flies (Lutzomyia spp.) were also collected. Collections from an undisturbed area of the park were much richer faunistically than those from an area that was destroyed by fire in 1967 but had since regenerated, suggesting that recovery after environmental disturbances of this type may be prolonged. This pattern was not seen for phlebotomine sand flies, whose greater abundance and species richness in the disturbed section of the park may be related to their dependence on small mammal hosts, known to be more diverse in this type of habitat.

Keywords : Psychodidae; Psychodinae; Trichomyiinae; Phlebotominae; Trichomyia dolichopogon sp. nov.; T. riodocensis sp. nov.; Atlantic Forest; indicator species.

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