Open Access

Teunis Jansen

• Westwoodilla Bate. 1862 is revised and 12 species are recognized as distinct, 2 of which, W. tone and W. helle. are described as new. New characters of taxonomic importance are described and illustrated. The many variable characters that have led to taxonomic confusion in the pas! are converted to morphometries and the intra- and interspecific variation are illustrated. This has led to a new understanding of the genus and a clarification of the "W. caecula complex". The type species Westwoodia caecula Bate. 1857 is redescribed and a neotype is designated. W. megalops (Sars, 1883) is resurrected. The junior synonymy of W. longidactyla Carausu, 1949 with W. caecula is supported by the find of Carausu's original unpublished notes and drawings. Notes on undescribed species are given. New drawings are provided for W. manta Griffiths, 1974, W. longimana Shoemaker, 1934, W. brevicalcar (Goes, 1865) and W. megalops. All species are diagnosed; new distributions are given and plotted on a map; and a key to the named species is included.