Myrmecotypus O. Pickard-Cambridge, 1894

Perger, Robert & Rubio, Gonzalo D., 2021, A new species of Myrmecotypus Pickard-Cambridge spider (Araneae: Corinnidae: Castianeirinae) from the Bolivian orocline, imitating one of the world’s most aggressive ants, Insecta Mundi 2021 (860), pp. 1-8 : 2-3

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, AME larger than ALE, PME–PME greater than PME–PLE, PLE situated close to lateral margin of

cephalic area; 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 ( Perger and Rubio 2020a).