Delimitation and description of 19 new genera, a subgenus and a species of Salticidae (Araneae) of the world Author Prószyński, Jerzy text Ecologica Montenegrina 2016 2016-05-26 7 4 32 https://doi.org/10.37828/em.2016.7.1 journal article 10.37828/em.2016.7.1 2336-9744 13224403 urn:lsid:zoobank.org:pub:4171B7E1-BE6F-48ED-85B4-4DC2C232A273 Gen. Myrmagua Prószyński, 2016 gen. n. Figure 2F Type species . Myrmarachne guaranitica Galiano, 1969 . Etymology . Name combines words Myrmarachne and guaranitica , grammar gender assumed female. Diagnosis . "Pipes-like" sclerotized spermathecae very thin and long, stretching parallel along the median axis of epigyne and extending right to the posterior rim of epigyne, anteriorly terminated by small, transverse oval chambers with thin internal spines ( Fig. 2F ). The coils of copulatory ducts developed in the posterior third of epigyne, it is not clear from the published drawings whether are they membranous, or have somewhat thicker walls. Pocket narrow and long. The structure of epigyne is not comparable to any known S and C American genus of MYRMARACHNINES, resemble Asiatic genus Bocus Peckham & Peckham, 1892 , but there are no other premises for that comparison. Carapace low and broad, slightly constricted dorsally behind eyefield. Distribution . Argentina . More diagnostic documentation - see at: http://www.peckhamia.com/salticidae/q24- Myrmagua .html and, especially, Galiano (1969: 143 , Figs. 5-6 , 69-70). Remarks . Only single, damaged female specimen is known, described and drawn by Galiano (1969) , other characters are unknown. Classification as separate genus is tentative, due to the striking difference of internal structures of epigyne from all other genera, pending confirmation by new male and females specimens, none were found during last 48 years. Composition . Single species Myrmagua guaranitica ( Galiano, 1969 ) comb. n. (syn. Myrmarachne guaranitica Galiano, 1969 ).