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Redescription of Tityus pictus Pocock, 1893 and Tityus smithii Pocock, 1893, with notes on the Tityus species from the Lesser Antilles (Scorpiones: Buthidae).

Author(s): Teruel, R.

Journal: Euscorpius
ISSN 1536-9307

Issue: 125;
Start page: 1;
Date: 2011;
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Keywords: Tityus | Lesser Antilles | scorpions | Buthidae

In the present paper, the taxonomic status of Tityus pictus Pocock, 1893 and all of its junior synonyms is revised. Tityus smithii Pocock, 1893 is restored as a valid species, and the subspecies Tityus smithii microdon Pocock, 1893 (currently T. pictus microdon) is regarded as its junior synonym. Both T. pictus and T. smithii are redescribed, supplementary information on their morphological variability are given, and their geographical distribution is up- dated, including a new locality record for the latter. Also, the taxonomic position and relationships of all Lesser Antillean species of the genus are clarified: it is demonstrated that T. exstinctus Lourenço, 1995 and Tityus insignis Pocock, 1889 are actually more closely related to T. pictus and T. smithii, and they all form a morphologically compact group of species which shows no clear affinities to any other species-group but “crassimanus” and “quisqueyanus”.
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