Published October 4, 2023
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Table 4 in Phylogenetic analyses and description of a new species of black widow spider of the genus Latrodectus Walckenaer (Araneae, Theridiidae) from Mexico; one or more species?
Authors/Creators
- 1. Colección de Aracnología (CARCIB), Programa Académico de Planeación Ambiental y Conservación (PLAYCO), Centro de Investigaciones Biológicas del Noroeste (CIBNOR), S. C. Km 1 Carretera a San Juan de La Costa ́ El Comitán », La Paz, Baja California Sur, C. P. 23205, Mexico
Description
Table 4. Average linear measurements (mm) analyzed of male specimens from the putative species of Latrodectus Walckenaer, 1805 in Mexico recorded in this study. Values in parentheses represent minimum and maximum. “T” = length/width of carapace. “TT” = Tibia-Patella length of legs I or IV.
| Males | |||||
|---|---|---|---|---|---|
| L. mactans | L. occidentalis sp. nov. | Latrodectus sp. 1 | Latrodectus. sp. 2 | L. hesperus | |
| Carapace length | 2.28 | 2.11 (1.82–2.53) | 2.5–3.03 | 2.01 (1.46–2.5) | 1.8 (1.34–2.62) |
| Carapace width | 1.85 | 1.78 (1.5–2.075) | 2.2–2.656 | 1.68 (1.28–1.94) | 1.43 (1.1–2.02) |
| T coefficient | 1.232 | 1.19 (1.08–1.25) | 1.136–1.141 | 1.19 (1.06–1.3) | 1.25 (1.19–1.29) |
| Sternum length | 1.12 | 1.11 (1–1.2) | 1.4–1.68 | 1.1 (0.96–1.18) | 0.93 (0.78–1.16) |
| Sternum width | 1.12 | 1 (0.8–1.24) | 1.28–1.507 | 1 (0.6–1.28) | 0.89 (0.7–1.16) |
| Coefficient sternum | 1 | 1.23 (1.16–1.35) | 1.093–1.114 | 1 (0.75–1.09) | 1.13 (1.11–1.16) |
| Tibia-Patella I length | 5.625 | 5.77 (5.31–6.8) | 6.125–7.68 | 4.54 (3.56–5.68) | 4.64 (3.32–7.04) |
| Tibia-Patella I width | 0.36 | 0.34 (0.3–0.4) | 0.437–0.55 | 0.3 (0.22–0.36) | 0.29 (0.22–0.42) |
| Tibia-Patella I coefficient | 15.625 | 16.73 (15.8–18.01) | 13.963–14 | 13.86 (11–16.18) | 15.5 (15.09–15.83) |
| Femur I length | 5 | 5.34 (4.8–6.16) | 5.437–6.96 | 3.99 (3.12–5.12) | 4.24 (3.12–6.4) |
| Femur I width | 0.42 | 0.38 (0.36–0.46) | 0.562–0.675 | 0.4 (0.28–0.5) | 0.34 (0.24–0.54) |
| Femur I coefficient | 11.904 | 13.88 (13.21–15.45) | 9.666–10.311 | 9.91 (8.36–11.42) | 11.99 (11.19–12.85) |
| TT1 coefficient | 2.467 | 2.76 (2.56–2.95) | 2.45–2.533 | 2.26 (2.02–2.52) | 2.58 (2.37–2.68) |
| Tibia–Patella IV length | 4.35 | 4.20 (3.75–5) | 4.8–6.187 | 3.59 (2.65–4.56) | 3.46 (2.27–5.31) |
| Tibia–Patella IV width | 0.24 | 0.365 (0.3–0.44) | 0.487–0.562 | 0.33 (0.22–0.44) | 0.23 (0.22–0.26) |
| Tibia–Patella IV coefficient | 18.125 | 11.53 (10.93–12.5) | 9.846–11 | 10.22 (9.7–10.65) | 11.21 (10.34–12.07) |
| Femur IV length | 4.55 | 4.49 (4.05–5.37) | 4.95–6.16 | 3.8 (3.52–4.05) | 3.68 (2.45–5.68) |
| Femur IV width | 0.38 | 0.34 (0.24–0.44) | 0.475–0.575 | 0.36 (0.24–0.44) | 0.27 (0.22–0.42) |
| Femur IV coefficient | 11.973 | 13.35 (11.31–17.29) | 10.421–10.713 | 9.96 (8.85–11.45) | 12.64 (9.42–16.66) |
| TT4 coefficient | 1.907 | 2 (1.9–2.16) | 1.92–2.041 | 1.78 (1.63–1.95) | 1.89 (1.67–2.02) |
Notes
Published as part of Valdez-Mondragón, Alejandro & Cabrera-Espinosa, Luis A., 2023, Phylogenetic analyses and description of a new species of black widow spider of the genus Latrodectus Walckenaer (Araneae, Theridiidae) from Mexico; one or more species?, pp. 22 in European Journal of Taxonomy 897 on page 22, DOI: 10.5852/ejt.2023.897.2293, http://zenodo.org/record/8405868
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