Published January 3, 2025
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TABLE 4 in Deciphering a Chilean harvestmen enigma: what is Parabalta bicornis (Gervais, 1849) comb. nov. (Opiliones: Gonyleptidae: Pachylinae)
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TABLE 4. Comparison of diagnostic characters between male Parabalta bicornis comb. nov. versus P. reedii (cf. PérezGonzález et al. 2022: fig. 2) and P. cristobalia (cf. Roewer 1943: pl. 2, figs. 14, 14 a).
| Parabalta bicornis | Parabalta reedii / Parabalta cristobalia | |
|---|---|---|
| Cx IV: prolateral apophysis | bifid, short, diagonally oriented | simple, curved tip, points backwards |
| TrIV: prolateral apophysis | small, ax-like | bilobate, distal lobe is short and parallel to border (P. reedii) or large, finger-like, pointing sideways (P. cristobalia) |
| TrIV: apical prodorsal finger-like apophysis | large, oriented upwards, inclined medially | oriented sideways, either short (P. reedii), or long and parallel to the former apophysis (P. cristobalia) |
| FeIV: prodorsal basal apophyses | 1–2, conic + acute granules | none |
| FeIV: retrodorsal apophysis | large; followed by small apophyses of decreasing size | either large (P. reedii) or small (P. cristobalia), it is only followed by granulation on the medial side |
| FeIV: proventral row of tubercles / apophyses | only a row of tubercles, no subapical apophysis | a large subapical apophysis pointing sideways, either alone or with 2–3 smaller ones in a row |
| PaIV: ventral acute apophyses | two | one (P. reedii) or two (P. cristobalia) |
| Ti IV: ventral acute apophyses | one basal, three distal, a large gap in between (2–3 rudimentary tubercles may exist) | one basal, three distal, in between one or two additional |
Notes
Published as part of Acosta, Luis E., 2025, Deciphering a Chilean harvestmen enigma: what is Parabalta bicornis (Gervais, 1849) comb. nov. (Opiliones: Gonyleptidae: Pachylinae), pp. 203 in Zootaxa 5563 (1) on page 203, DOI: 10.11646/zootaxa.5563.1.13, http://zenodo.org/record/14595841
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References
- Roewer, C. F. (1943) Uber Gonyleptiden. Weitere Weberknechte (Arachn., Opil.) XI. Senckenbergiana biologica, 26 (1 - 3), 12 - 68.