Osflintia manu, new genus, new species, of long-horned caddisfly (Leptoceridae: Triplectidinae: Grumichellini) is described and illustrated from southeastern Peru. The phylogeny of Grumichellini Morse (Leptoceridae: Triplectidinae) is revisited and hypotheses of homology of some morphological characters are reconsidered. The monophyly of the tribe is corroborated and the phylogenetic relationships of its included genera are inferred to be (Triplexa (Gracilipsodes ((Grumichella, Amazonatolica) (Atanatolica, Osflintia, n. gen.)))) from adult and larval characters. Diagnostic characters of the new genus include the following: reduced tibial spur formula (2, 2, 2), loss of forewing crossvein sc-r1, hind wing discoidal cell closed, hind wing fork IV present, pair of long setae on tergum IX of the male genitalia, and pair of processes on the apex of segment X.
Bibliographical noteFunding Information:
We are grateful to Dr Oliver S. Flint, Jr. (Smithsonian Institution) who most generously called the attention of the junior author to this specimen almost 20 years ago. We also thank Dr Ana Maria Pes (INPA) for the loan of specimens and Dr Claudio Froehlich (Universidade de São Paulo) and Dr Roger Blahnik (University of Minnesota) for their helpful comments and suggestions on the manuscript. This work was supported by two CNPq fellowships (Brazilian Council of Scientific and Technological Development, 141367/2004-0 and SWE 201382/2007-5) to ARC. This material is based upon work supported by the National Science Foundation under Grant No. 0117772.
- New genus
- New species