The new Ischnocolinae genus
Catumiri is described. The species
Cenobiopelma argentinense (Mello-Leitão, 1934), considered a junior synonym of
Oligoxystre Vellard, 1924, is transferred to the present genus. Three new species are also described:
C. chicaoi n. sp., from south of Bahia, Una;
C. petropolium n. sp., from Petrópolis, Rio de Janeiro (type species); and
C. uruguayense n. sp., from Lavalleja, Uruguay. Diagnosis, zoogeographical distribution and an identification key are provided for all species.
Zootaxa 671: 1-14