Habronattus arcalorus sp. n. All specimens from Davis Mountains, Texas except Fig. 12, from Cañon City, Colorado. (10–11 paratype male W328) 10 left palp, ventral view 11 left palp, retrolateral view. 12 epigynum, ventral view, paratype female W332. Scale bar = 0.1 mm. 4 third leg femur, patella and tibia 13–18 living male 19–20 living females. 21 male in courtship pose. All photos credit W. P. Maddison.