HR: 1330h
AN: NB33A-03    [Abstracts]
TI: New Sericostomatid Caddisflies (Trichoptera) from the Brazilian Subregion
AU: * Holzenthal, R W
EM: holze001@umn.edu
AF: Department of Entomology, University of Minnesota, 219 Hodson Hall, 1980 Folwell Ave., St. Paul, MN 55108 United States
AU: Blahnik, R J
EM: blahn003@umn.edu
AF: Department of Entomology, University of Minnesota, 219 Hodson Hall, 1980 Folwell Ave., St. Paul, MN 55108 United States
AB: The caddisfly family Sericostomatidae, with 20 genera and almost 100 species, is nearly cosmopolitan in distribution, but is absent from the Australasian region, has only a single species in the Oriental region, and occurs only in the southernmost regions of Africa and South America. Within its distribution, it displays 4 centers of species diversity: the southeastern United States, Europe and the western Palearctic, South Africa, and southern Chile. Five genera occur in the Neotropics: Chiloecia (1 species), Grumicha (1 species), Myotrichia (1 species), Notidobiella (3 species), and Parasericostoma (10 species), all occurring in southern Chile, except Grumicha, from southeast Brazil and adjacent Argentina. Recent collecting throughout South America, but especially in SE Brazil, has resulted in the discovery of 4 new species and an extension of the family's range in South America well beyond the Chilean subregion. The new taxa include: 1 new species of Grumicha from southeastern Brazil, 2 new species of Notidobiella from SE Brazil and Ecuador, respectively, and a new species, probably representing a new genus, from Amazonian Brazil. Males, females, and immatures of these new species are described and illustrated. Biogeographical implications suggest both recent dispersal as well as more ancient Gondwanan vicariant patterns.
DE: 9810 New fields (not classifiable under other headings)
SC: North American Benthological Society [NB]
MN: 2005 Joint Assembly