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species

Tetrixocephalus willemsei Gurney & Liebermann, 1963

Tetrixocephalus willemsei Gurney & Liebermann, 1963: female. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: female. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: male. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 30. male, head, frontal view. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 28. male, head and pronotum, dorsal view. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 29. male, head and pronotum, lateral view. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 31. female, head and pronotum, dorsal view. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 32. female, head and pronotum, lateral view. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 19. spermatheca. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 18. male subgenital plate. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 37. cingulum and endophallus, lateral view. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 38. cingulum and endophallus, dorsal view. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 39D. epiphallus, caudal view. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 39A. epiphallus, cephalic view. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 39C. epiphallus, dorsal view. (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 39B. Epiphallus (lateral view). (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 35. Epiphallus, ectophallus and aedeagus apex (dorsal view). (Otu).
Tetrixocephalus willemsei Gurney & Liebermann, 1963: Fig. 36. epiphallus, ectophallus and aedeagus apex, lateral view. (Otu).
CollectionObject 1597693; 71684269-43f5-49ac-94b0-3c4f0c45e77c: Image Carbonell, C.S. female, lateral view (allotype). (CollectionObject).
CollectionObject 1597693; 71684269-43f5-49ac-94b0-3c4f0c45e77c: Image Carbonell, C.S. label (allotype). (CollectionObject).

Nomenclature (7)

  • Tetrixocephalus willemsei Gurney & Liebermann, 1963: 131.

    Holotype; male; 2159a595-b9c3-41ac-ad76-478f0406e332; deposited at: National Museum of Natural History, Smithsonian Institution (USNM); Argentina: Neuquén: Zapala: Laguna Blanca

  • Tetrixocephalus willemsei Gurney & Liebermann, 1963 in Ronderos, 1970: 30.
  • ... Show all ... (3)
  • Tetrixocephalus willemsei Gurney & Liebermann, 1963 in Montemayor, Melo, Scattolini, Pocco, del Río, Dellapé, Scheibler, Roig, Cazorla & Dellapé, 2017
  • Tetrixocephalus willemsei Gurney & Liebermann, 1963 in Hemp, Ritchie, Cigliano, Heller, Warchalowska-Sliwa, Grzywacz, Linde, Uluar, Oumarou-Ngoute & Song, 2025: 492.

Nomenclature references (7)

  • Gurney, A.B. & Liebermann, J. (1963) Grasshoppers of the tribe Ommexechini: a key to genera, a new Argentine genus, and notes on others (Orthoptera: Acrididae). Proceedings of the Biological Society of Washington, 76, 127–138. Available at http://www.biodiversitylibrary.org/item/107599#page/151/mode/1up
  • Hemp, C., Ritchie, J.M., Cigliano, M.M., Heller, K.-G., Warchalowska-Sliwa, E., Grzywacz, B., Linde, J.B., Uluar, O., Oumarou-Ngoute, C. & Song, H. (2025) Out of sight, out of mind? Ixalidiidae, a new family of African forest grasshoppers (Orthoptera, Acridoidea) revealed by molecular phylogenetics and genital morphology. Zoosystema, 47(24), 489–553. https://doi.org/10.5252/zoosystema2025v47a24
  • ... Show all ... (3)
  • Mesa, A. (1973) Los cromosomas de algunas especies de acridios y proscópidos chilenos. Trabajos del V Congreso Latinoamericano de Zoologia, 1, 150–161.
  • Montemayor, S.I., Melo, M.C., Scattolini, M.C., Pocco, M.E., del Río, M.G., Dellapé, G., Scheibler, E.E., Roig, S.A., Cazorla, C.G. & Dellapé, P.M. (2017) The fate of endemic insects of the Andean region under the effect of global warming. PLOS One, 12(10 e0186655). Available at http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0186655
  • Ronderos, R.A. (1970) Dos nuevas especies del género Tetrixocephalus Gurney y Liebermann (Orthoptera: Acrididae, Ommexechinae). Revista de la Sociedad Entomológica Argentina, 32(1-4), 23–33. Available at http://www.biotaxa.org/RSEA/article/view/41970
  • Ronderos, R.A. (1974) Notas para una revisión de la subfamilia Omexechinae. 5. Los géneros Calcitrena Eades y Tetrixocephalus Gurney & Liebermann (Orthoptera: Acrididae, Omexechini). Acrida, 3(3), 205–221.
  • Ronderos, R.A. (1979) La familia Ommexechidae (Orthoptera: Acridoidea). Acrida, 8(4), 241–273.

Descendants and synonyms

Gender, form, and etymology
Etymology:

Named for the late friend of the authors, C.J. M. Willemse (1889–1962) of Eygelshoven, The Netherlands, a devoted student of Orthoptera, notably the Acridoidea of Southeastern Asia.

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