Sennius yucatan, n. sp., a Redescription of S. infractus, and New Host Records for Other Sennius (Coleoptera: Bruchidae)

The new species Sennius yucatan Johnson, which breeds in the seeds of Senna atomaria (L.) Irwin and Barneby, is described, and Sennius infractus Johnson and King-solver is redescribed. Figures of the male genitalia, habitus, hind leg, and antenna are included for both species. Host records for 19 other species of Sennius are recorded. An analysis of the host records for use as taxonomic characters when compared with a, new classification of the legume subtribe Cassiinae revealed no new significant conclusions.