Cr. Lugoortiz et Wp. Mccafferty, FIRST REPORT AND NEW SPECIES OF THE GENUS APOBAETIS (EPHEMEROPTERA, BAETIDAE) FROM SOUTH-AMERICA, Aquatic insects, 19(4), 1997, pp. 243-246
Apobaetis (Ephemeroptera: Baetidae) is reviewed and newly reported fro
m South America. Apobaetis signifer, sp. n., is described from larvae
from Brazil and Paraguay. Larvae of the new species are distinguished
by short, two-segmented maxillary palps and abdominal coloration. The
South American species is apparently plesiotypic relative to known Nea
rctic congeners, suggesting a Neotropical center of origin for Apobaet
is.