Myrmecotypus O. Pickard-Cambridge, 1894

Perger, Robert & Rubio, Gonzalo D., 2021, Myrmecotypus haddadi sp. nov. - a new species of ant resembling sac spider from the Bolivian orocline (Araneae: Corinnidae: Castianeirinae), Zootaxa 4969 (1), pp. 54-60 : 55-56

publication ID	https://doi.org/10.11646/zootaxa.4969.1.2
publication LSID	lsid:zoobank.org:pub:57DCEB7B-B7DD-41BF-AECE-AD757C988EAC
DOI	https://doi.org/10.5281/zenodo.4813074
persistent identifier	https://treatment.plazi.org/id/C3023753-FFBD-F73A-ACD7-27B8FA4EE5CB
treatment provided by	Plazi (2021-05-10 10:14:47, last updated 2024-11-28 09:10:25)
scientific name	Myrmecotypus O. Pickard-Cambridge, 1894
status

Treatment

Genus Myrmecotypus O. Pickard-Cambridge, 1894 View in CoL

Type species: Myrmecotypus fuliginosus O. Pickard-Cambridge, 1894 View in CoL (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 & Rubio 2020a, 2021).

Key to the known Bolivian species of Myrmecotypus

1. Tibia I spination 3-3 or 5-5.............................................................................. 2

- Tibia I spination 4-4............................................................... M. niger Chickering, 1937 View in CoL

2. Carapace with shallow transverse constriction...............................................................3

- Carapace with deep transverse constriction................................... M. tahyinandu Perger & Rubio, 2020 View in CoL

3. Males.............................................................................................. 5

4. Females............................................................................................. 7

5. Embolus with at least one tegular projection near base........................................................ 6

- Embolus without tegular projection, twisted....................................... M. iguazu Rubio & Arbino, 2009 View in CoL

6. Embolus slightly curved................................................ M. rubrofemoratus Perger & Rubio, 2021 View in CoL

- Embolus cat claw-shaped................................................................ M. haddadi View in CoL sp. nov.

7. Epigyne openings rounded.............................................................................. 8

- Epigyne openings narrow, transverse............................................. M. iguazu Rubio & Arbino, 2009 View in CoL

8. Epigyne openings distal to spermathecae................................... M. rubrofemoratus Perger & Rubio, 2021 View in CoL

- Epigyne openings mediolateral to spermathecae.............................................. M. haddadi View in CoL sp. nov.

References

Perger, R. & Rubio, G. D. (2020 a) Contributions to the knowledge of Neotropical ant-like spiders: Myrmecotypus tahyinandu sp. n. from Bolivian Chiquitano forest, a new country record for M. niger, and indirect evidence for species-specific mimicry (Araneae: Corinnidae: Castianeirinae). Zootaxa, 4790 (1), 151 - 164. https: // doi. org / 10.11646 / zootaxa. 4790.1.9

Perger, R. & Rubio, G. 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, 0860, 1 - 8.

Rubio, G. D. & Arbino, M. O. (2009) The first Myrmecotypus O. P. - Cambridge (Araneae: Corinnidae) from Argentina: description of Myrmecotypus iguazu new species. Zootaxa, 2158 (1), 65 - 68. https: // doi. org / 10.11646 / zootaxa. 2158.1.6