Eupalaestrus weijenberghi (Thorel, 1894)

Distribution: Uruguay

Adult male.

Two unequal tibial apophyses of leg I (RKCP 0401), ventral view.

Male palpal bulb with four apical keels PS, PI, A, R and one subapical SA; PS, PI, A and R keels are convergent, R keel is not pronounced, SA keel represent a denticulate row extending approximately for an apical half of the embolus, prolateral view (RKCP 0401). According Bertani, 2001 the denticulate row of SA keel in E. weijenberghi is extended for more than half of the embolus. Terminology follows Bertani, 2000.

Male palpal bulb with four apical keels PS, PI, A, R and one subapical SA; PS, PI, A and R keels are convergent, R keel is not pronounced, SA keel represent a denticulate row extending approximately for an apical half of the embolus, retrolateral view (RKCP 0401). According Bertani, 2001 the denticulate row of SA keel in E. weijenberghi is extended for more than half of the embolus. Terminology follows Bertani, 2000.

Adult female.

Spermathecae of adult fe male.

Notes: Males of Eupalaestrus weijenberghi lack scopulae on retrolateral face of femur IV differently from the other representatives of the genus. The males of E. weijenberghi have no incrassate tibium IV in spite of the fact that this character is one of the diagnostic characters of the genus Eupalaestrus Pocock, 1901 (Pérez-Miles et al., 1996). Schmidt, 2003 states that both sexes of E. weijenberghi lack scopulae on retrolateral face of femur IV and incrassate tibia IV.

  Literature cited:

Bertani R. (2000) Male palpal bulbs and homologous features in Theraphosinae (Araneae, Theraphosidae). The Journal of Arachnology, 28:29-42.

Pérez-Miles F., Lucas S. M., Da Silva P. I. , Bertani R. (1996) Systematic revision and cladistic analysis of Theraphosinae (Araneae: Theraphosidae). Mygalomorph, 1 (3): 48.

Schmidt G. (2003) Die Vogelspinnen, 1. Auflage. Westarp Wissenschaften, Hohenwarsleben: 137.