Abstract
The Wattius species occurring in the West Indies are revised for the first time. Wattius cucullatus (Pascoe), previously reported from Cuba, is diagnosed and restricted to Brazil. Wattius asperulus (Pascoe), currently a synonym of Wattius cucullatus, from Colombia is diagnosed and resurrected. All species found in the West Indies are endemic to the islands and form a single informal species-group. Three species are described: Wattius andersoni sp. n. from Cuba, Wattius emmabaconae sp. n. from Hispaniola (Dominican Republic), and Wattius viatorus sp. n. from Cuba and the Bahamas, and lectotypes are designated for Calymmus cucullatus Pascoe and Calymmus asperulus Pascoe. A key to the West Indian species is provided.
Highlights
The New World component of the tribe Toxicini currently contains three genera, Diceroderes Solier (1 species, plus 4 species in press), Ozolais Pascoe (11 species), and Wattius Kaszab (5 extant species, one fossil), all in the subtribe Eudysantina Bouchard, Lawrence, Davies and Newton
Wattius was proposed by Kaszab (1982) as a name for the New World species previously in Calymmus Pascoe to separate them from the New Caledonian Calymmus berardi (Montrouzier, 1860)
No specimens have been collected on fungus; Doyen (1988) described putative Wattius cucullatus (Pascoe, 1871) larvae collected from fungus, with no adults present, in Jalisco, Mexico
Summary
The New World component of the tribe Toxicini currently contains three genera, Diceroderes Solier (1 species, plus 4 species in press), Ozolais Pascoe (11 species), and Wattius Kaszab (5 extant species, one fossil), all in the subtribe Eudysantina Bouchard, Lawrence, Davies and Newton. Wattius was proposed by Kaszab (1982) as a name for the New World species previously in Calymmus Pascoe to separate them from the New Caledonian Calymmus berardi (Montrouzier, 1860). Wattius is restricted to the Americas and includes all known Eudysantina species with a single pronotal horn. Of the New World genera, all Ozolais species lack pronotal horns, but several species (including O. tuberculifera) have one or two cephalic horns in the males; all Diceroderes have two pronotal horns; and all Wattius have a single pronotal horn that occurs in both sexes. No specimens have been collected on fungus; Doyen (1988) described putative Wattius cucullatus (Pascoe, 1871) larvae collected from fungus, with no adults present, in Jalisco, Mexico
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