Nylanderia of the World Part III: Nylanderia in the West Indies Author Kallal, Robert J. text Zootaxa 2019 2019-08-23 4658 3 401 451 journal article 25929 10.11646/zootaxa.4658.3.1 70ec409b-10b2-459d-bd98-e3e45b41f3a9 1175-5326 3375930 140EC233-D961-4705-AAF6-A6874C2B52E9 Distinguishing Nylanderia from Morphologically Similar Genera in the West Indies A complete diagnosis of Nylanderia is provided by LaPolla et al . (2011a) . An updated key to the genera of the Prenolepis genus-group is provided by Williams & LaPolla (2016) . In the West Indies there are three Prenolepis genusgroup genera present: Nylanderia , Paratrechina , and Zatania LaPolla, Kallal & Brady, 2012 . The only Paratrechina species in the New World is P. longicornis , which is an invasive species from either Africa or Asia ( LaPolla et al . 2013 ; LaPolla & Fisher 2014 ). It is easily separated from Nylanderia by possessing a uniquely elongated mesosoma with a low propodeum (typically reaching only the mesonotal height in lateral view) and a long scape that is without macrosetae. Zatania is native to the West Indies ( LaPolla et al . 2012 ) and can be separated from Nylanderia based on mesosomal characteristics: Nylanderia possess deep and complete mesonotal and metanotal sutures that divide the posterior part of the mesosoma distinctly into the mesopleuron and propodeum; Zatania have shallow and incomplete mesosomal sutures ( Williams & LaPolla 2016 ). Additionally, most of the West Indian Zatania have 5 mandibular teeth. The exception is Z. cisipa ( Smith & Lavigne 1973 ) , which possesses 6 teeth ( LaPolla et al . 2012 ); all West Indian Nylanderia have 6 mandibular teeth.