Alpaida O. Pickard-Cambridge, 1889

Alpaida O. Pickard-Cambridge, 1889 View in CoL

Type species. Alpaida conica O. Pickard-Cambridge, 1889 View in CoL

Diagnosis. Adapted from Levi (1988) and Baptista et al. (2025). Males and females of Alpaida are recognized by the glabrous body, exhibiting varying color shades, mostly red, orange, yellow or green, in living specimens. Males of Alpaida resemble those of Edricus O. Pickard-Cambridge, 1890 and Wagneriana F. Pickard-Cambridge, 1904 by having palp bearing radix, embolus and terminal apophysis fused into one sclerite ( Fig. 5 View FIGURE5 ); and a mushroom- or cap-shaped conductor lobe (termed paramedian apophysis by Levi (1988)) ( Figs 5 View FIGURE5 , 8A View FIGURE 8 , 11A View FIGURE 11 ) attached to the conductor, as in Edricus . Males of Alpaida can be distinguished from those of Edricus by the wide carapace ( Figs 1A View FIGURE 1 , 4A View FIGURE 4 , 6A View FIGURE 6 , 9A View FIGURE 9 ), clypeus relatively low and usually by the smaller and simpler median apophysis and larger and more complex terminal apophysis ( Figs 3A View FIGURE 3 , 5 View FIGURE5 , 10A View FIGURE 10 ); and differ from those of Wagneriana by the glabrous orange carapace, the smaller and simpler median apophysis and the conductor lobe mushroom- or cap-shaped ( Figs 5 View FIGURE5 , 8A View FIGURE 8 , 11A View FIGURE 11 ). Females of Alpaida have a wide head with eyes ringed in black ( Figs 2A View FIGURE 2 , 7A View FIGURE 7 , 10A View FIGURE 10 ) and the epigyne is usually a transverse sclerotized structure with a triangular median scape, posterior lips, and copulatory openings located on each side between the posterior plate and the lips ( Figs 3B, C View FIGURE 3 , 8B, C View FIGURE 8 , 11B, C View FIGURE 11 ).

Description. See Levi (1988).