The Aradidae (Insecta, Hemiptera, Heteroptera) of Argentina Author Contreras, Eugenia Fernanda Author Coscarón, María Del Carmen text Zootaxa 2012 3500 1 35 journal article 10.5281/zenodo.215294 9e62896d-fcee-4263-a0bb-0c2a84fd1bad 1175-5326 215294 CBDF71F7-70A8-415F-83CA-3010E8B2E8B6 Key to the species of genus Iralunelus Burmeister of Argentina 1. Spiracles of 2º segment ventral and not visible from above........................ Iralunelus bergi Kormilev ( Fig 2 D) 1’. Spiracles of 2º segment lateral and visible from above......................................................... 2 2. Postocular tubercles moderately developed; male pygophore large, acorn shaped; paratergites 8º reach up to 2/3 of pygophore; crenulation of the sides edges of the abdomen sligthly blurry................ Iralunelus subdipterus Burmeister ( Fig 3 B) 2’. Postocular tubercles robust, male pygophore smaller; paratergites 8º reach up to 7/8 of pygophore; crenulation of the sides edges of the abdomen clear.............................................. Iralunelus monrosi Kormilev ( Fig 3 A)