INVESTIGADORES
COSCARON Maria Del carmen
artículos
Título:
Cladistics of the assasin bug genus Melanolestes Stål (Heteroptera: Reduviidae).
Autor/es:
COSCARON, M.C.; MORRONE, J.J.
Revista:
PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON
Editorial:
ENTOMOL SOC WASHINGTON
Referencias:
Lugar: Washington; Año: 1997 p. 55 - 59
ISSN:
0013-8797
Resumen:
Melanolestes Stål is a
monophyletic genus of nine species, two Nearctic and seven Neotropical. A
cladistic analysis of the genus was carried out using 28 characters. The
cladograms were rooted with the genus Peirates
Serville. The analysis yielded 20 equally parsimonious cladograms, with 34
steps, CI = 0.52, and RI = 0.44. A siccessive weighting procedure resulted in
one cladogram with 77 steps, CI = 0.84, and RI = 0.87. The distribution of Melanolestes coincides in part with a
previous study on Peiratinae, that showed that the vormer continuous Amazonian
forest was separated into two parts by a diagonal line of open areas. In
addition, the two Nearctic species M.
picicornis and M. picipes are
sister-taxa, so a single dispersal event accounts for the presence of Melanolestes in the Nearctic.