Gypogyna amazonica Ruiz, sp. nov.

Figs 45–46, 63

Type material. Holotype: ♂ from Rio Tarumã-Mirim, Manaus, Amazonas, Brazil, 05.VIII.1979, J. Adis (IBSP 67104).

Etymology. The epithet is to be treated as a Latin adjective and refers to the Amazon forest, where the holotype was found.

Diagnosis. Among the three species, G. amazonica sp. nov. is more similar to G. forceps. In these two, male chelicerae extend almost parallelly forward (they are more divergent in G. mexicana sp. nov.), and the distal pair of promarginal teeth (DPT) is located near the articulation of the fang (as in Fig. 51) (DPT is more basal in G. mexicana; Fig. 52). Also, the abdomen in these two species does not have several pairs of dorsal dark spots, as in G. mexicana (Figs 53–56). The male of G. amazonica can be distinguished from that of G. forceps by the clear abdomen, without the typical color pattern of G. forceps, and by having a narrower cymbium (middle portion of cymbium is much wider in G. forceps). The female of G. amazonica is unknown.

Description. Male (holotype). Total length: 4.60. Carapace orange, 2.27 long, 1.54 wide, 0.97 high; intestinal diverticula can be seen within cephalic area through translucent cuticle. Ocular quadrangle 1.15 long. Anterior eye row 1.24 wide and posterior 1.19 wide. Labium, endites and sternum clear. Chelicera orange, as described to G. forceps. Palp as described for the genus (Figs 45–46). Legs 4312, yellow. Length: I 3.99 (1.32 + 1.15 + 1.52), II 3.73 (1.09 + 1.49 + 1.15), III 4.20 (1.45 + 1.61 + 1.14), IV 4.46 (1.65 + 1.38 + 1.43). Abdomen entirely clear, only with a pair of light areas in the middle, almost giving the impression of a constriction, and a small dark spot over the anal tubercle. Spinnerets brown.

Female. Unknown.

Distribution. Known only from the type locality (Fig. 63).