Ceratomontia

Belongs within: Triaenonychidae.

Ceratomontia is a genus of harvestmen that has been described from South America and Africa. An analysis of Ceratomontia by Mendes & Kury (2008) suggested that it is paraphyletic to the African genera Monomontia and Austromontia, with the African species analysed (C. capensis, C. minor and C. tabulae) closer to the African species than to South American species. South American Ceratomontia have an undivided ventral plate on the penis and five setae on each side of the stylus whereas African species have a cleft ventral plate and four pairs of setae on the stylus (Derkarabetian et al. 2021).

Characters (Mendes & Kury 2008): Median spine of eyemound continuous with eyemound; mesotergal areas well defined; pedipalpal femur with ventral band of small granules; tarsus I with two tarsomeres, distal tarsomere incrassate; tarsus II with less than six tarsomeres; penis with disto-ventral projections on dorso-lateral plate, stylus enfolded by dorsal plate.

<==Ceratomontia Roewer 1915PP-G23
    |--+--C. mendocina Maury & Roig-Alsina 1985MK08
    |  `--+--C. argentina Canals 1939MK08
    |     |--C. brasiliana Maury 1999MK08
    |     `--C. centralis Maury & Roig-Alsina 1985MK08
    `--+--*C. capensis Roewer 1915MK08
       `--+--+--C. minor Lawrence 1931MK08
          |  `--C. tabulae Lawrence 1931MK08
          `--+--+--Planimontia Kauri 1961DB21, S92
             |  |    `--*P. goodnightorum Kauri 1961 [=P. goodnighti]S92
             |  `--Rostromontia Staręga 1992DB21, KMS14
             |       |--*R. truncata Lawrence 1931S92
             |       |--R. capensis Lawrence 1931GV09
             |       `--R. granulifera Lawrence 1931 [=R. granulifer]S92
             `--+--Austromontia Staręga 1992MK08, KMS14
                |    |  i. s.: A. caledonica Lawrence 1931KMS14
                |    |         A. formosa Lawrence 1963KMS14
                |    |         A. litoralis Lawrence 1934KMS14
                |    |--+--*A. silvatica Lawrence 1931KMS14, MK08
                |    |  `--A. bidentata Lawrence 1934MK08
                |    `--+--A. capensis Lawrence 1931MK08
                |       `--+--‘Monomontia’ lawrencei Kauri 1950MK08
                |          `--‘Monomontia’ rugosa Lawrence 1937MK08
                `--Monomontia Staręga 1992MK08, KMS14
                     |--*M. atra Lawrence 1931KMS14
                     |--M. aquilonaris Lawrence 1963KMS14
                     |--M. aspera Lawrence 1939KMS14
                     |--M. brincki Kauri 1961MK08
                     |--M. corticola Lawrence 1938MK08
                     |--M. cristiceps Lawrence 1963KMS14
                     |--M. curvirostris Lawrence 1938KMS14
                     |--M. flava Lawrence 1933KMS14
                     |--M. granifrons Lawrence 1938KMS14
                     |--M. intermedia Lawrence 1938KMS14
                     |--M. krausi Kauri 1961KMS14
                     |--M. montensis Lawrence 1938KMS14
                     |--M. neglecta Schönhofer 2008KMS14
                     |--M. rattrayi Lawrence 1931KMS14
                     |--M. transvaalica Lawrence 1963KMS14
                     `--M. versicolor Lawrence 1963KMS14

Ceratomontia incertae sedis:
  C. annae Lawrence 1934KMS14
  C. cheliplus Roewer 1931KMS14 [incl. C. hewitti Lawrence 1931S92]
  C. fluvialis Lawrence 1931KMS14
  C. irregularis Lawrence 1931KMS14
  C. karooensis Lawrence 1931KMS14
  C. namaqua Lawrence 1934KMS14
  C. nasuta Lawrence 1934KMS14
  C. pusilla Lawrence 1934KMS14
  C. reticulata Lawrence 1934KMS14
  C. rumpiana Lawrence 1937KMS14 [=C. natalensis msK61]
  C. ruricola Lawrence 1934KMS14
  C. sanguinea Lawrence 1934KMS14
  C. setosa Lawrence 1931KMS14
  C. starengai Porto & Pérez-González 2023PP-G23
  C. thornei Lawrence 1934DB21 [=C. thorniS92]
  C. werneri Roewer 1931KMS14

*Type species of generic name indicated

References

[DB21] Derkarabetian, S., C. M. Baker, M. Hedin, C. E. Prieto & G. Giribet. 2021. Phylogenomic re-evaluation of Triaenonychoidea (Opiliones: Laniatores), and systematics of Triaenonychidae, including new families, genera and species. Invertebrate Systematics 35: 133–157.

[GV09] Giribet, G., L. Vogt, A. Pérez González, P. Sharma & A. B. Kury. 2009. A multilocus approach to harvestman (Arachnida: Opiliones) phylogeny with emphasis on biogeography and the systematics of Laniatores. Cladistics 25: 1–30.

[K61] Kauri, H. 1961. Opiliones. In: Hanström, B., P. Brinck & G. Rudebeck (eds) South African Animal Life: Results of the Lund University Expedition in 1950–1951 vol. 8 pp. 9–197. Almqvist & Wiksell: Uppsala.

[KMS14] Kury, A. B., A. C. Mendes & D. R. Souza. 2014. World checklist of Opiliones species (Arachnida). Part 1: Laniatores—Travunioidea and Triaenonychoidea. Biodiversity Data Journal 2: e4094.

[MK08] Mendes, A. C., & A. B. Kury. 2008. Intercontinental Triaenonychidae—the case of Ceratomontia (Opiliones, Insidiatores). Journal of Arachnology 36 (2): 273–279.

[PP-G23] Porto, W., & A. Pérez-González. 2023. The newest and the oldest species in the same vial: description of a new species of Ceratomontia Roewer, 1915 and redescription of Ceratomontia capensis Roewer, 1915 (Opiliones: Laniatores: Triaenonychidae). Zootaxa 5357 (1): 131–138.

[S92] Staręga, W. 1992. An annotated check-list of Afrotropical harvestmen, excluding the Phalangiidae (Opiliones). Annals of the Natal Museum 33 (2): 271–336.