Myrmecotypus O. Pickard-Cambridge, 1894

Pett, Brogan L., 2021, Description of a new species of Myrmecotypus (Araneae: Corinnidae Castianeirinae), the first of its genus known from Paraguay, with an updated key to species, Zootaxa 4999 (1), pp. 77-86 : 79

Genus Myrmecotypus O. Pickard-Cambridge, 1894

Type species. Myrmecotypus fuliginosus O. Pickard-Cambridge, 1894 (by original designation).

Diagnosis. Cephalic region wide (cephalic index range 64–89), carapace narrowed (carapace index ˂ 60), without thoracic groove but with slight depression instead; PER wider than AER and almost straight to moderately recurved (PLE situated close to lateral margin of cephalic area), AME larger than ALE, PME–PME greater than PME–PLE; abdomen only very slightly petiolated; tibia I ventral spines paired in 2–2, 3–2, 3–3 or 4–4 arrangement; trochanter IV notch usually absent, with only a tiny one, if present (reproduced from Perger & Rubio 2020 a).