The tribe Broscini in Mexico: Rawlinsius papillatus, new genus and new species (Insecta : Coleoptera : Carabidae), with notes on natural history and evolution
Rl. Davidson et Ge. Ball, The tribe Broscini in Mexico: Rawlinsius papillatus, new genus and new species (Insecta : Coleoptera : Carabidae), with notes on natural history and evolution, ANN CARN M, 67(4), 1998, pp. 349-378
Based on structural and ecological features of adults and larvae, particula
rly absence of standard fixed dorsal setae in adults, and the habitat of to
rrential mountain streams, Rawlinsius papillatus (type locality: Mexico, Gu
errero, Sierra Madre del Sur, 26 km NW El Paraiso, 1800 m) is described as
a new monobasic genus and species. This species is placed in the tribe Bros
cini, subtribe Broscina (Northern Hemisphere assemblage, excluding Axonya A
ndrewes and Broscodes Bolivar) on the basis of common possession of the uni
que set of features used to characterize these higher taxa. A key distingui
shes Rawlinsius from the other New World genera of Broscini. Separated wide
ly both morphologically and geographically from other New World Northern He
misphere Broscina, R. papillatus is postulated to be a relictual taxon, its
present isolation indicating past connections to a more broadly distribute
d northern broscine lineage.