A new species of the spider genus Wirada (Araneae, Theridiidae) from Mexico, with taxonomic notes on the genus and a key to the species Author Campuzano, Emmanuel F. Author Ibarra-Núñez, Guillermo text Zootaxa 2018 2018-08-09 4457 3 495 500 journal article 29059 10.11646/zootaxa.4457.3.13 7714f26f-36c1-42b0-8c0e-411215a89453 1175-5326 1457864 BBA4B95A-E83B-4A91-9948-7FB12A742E16 Wirada Keyserling, 1886 Type species: Wirada punctata Keyserling, 1886 Diagnosis. Wirada is close to Phoroncidia Westwood, 1835 by sharing a heavily sclerotized opisthosoma, sclerotized plates around spinnerets, a colulus replaced by two setae and an embolus shifted ectally, but it differs by having chitinous setiferous bridges on the carapace and sternum, and by the theridioid tegular apophysis embedded in the tegulum. Crustulina Menge, 1868 also has chitinous setiferous bridges on carapace and sternum, and embolus shifted ectally, but differs from Wirada by having an opisthosoma only partially sclerotized, a developed colulus, an apophysis in the cymbal distal promargin and a palpal conductor.