Hypaeus varzea sp. nov.

Figs 17–23

Type. Holotype: male from Comunidad Indígnera Monifue Amena, km 9.8, vía Leticia-Tarapacá, Leticia, Amazonas, Colombia, 70 m, 4.141667°S, 69.923256°W, X.2003, Tovar (MPUJ-ENT 46827).

Etymology. The species epithet is a noun in apposition that refers to the ecosystem where the species was collected.

Diagnosis. Males of H. varzea sp. nov. can be recognized from those of the remaining species of the genus by their large embolic projection (ep) in the male palpal bulb, wide and short RTA, together with the absence of the cheliceral mastidia (Figs 17–21).

Description. Male (holotype, MPUJ-ENT 46827). Total length: 6.75. Carapace yellowish orange, 3.40 long, 2.57 wide, 2.00 high. Ocular quadrangle with an anterior orange eyebrow, 1.49 long. Anterior eye row 2.21 wide, posterior 1.98 wide (Fig. 22). Sternum white, 1.33 long, 0.98 wide. Chelicerae orange, without mastidia (Fig. 21), and eight promarginal and five retromarginal teeth. Labium yellowish. Palp: embolus curved and a short rounded retroventral tibial apophysis (RvTA) (Figs 17–20). Legs 1342, all yellow and distally orange brown. Leg macrosetae: Femur, I d 2 di, p 0-1-1, r 1 di; II d 2 di, p 0-1-1, r 1-1-1; III d 2di, p 0-1-1, r 0-1-1; IV d 2 di, p 1 di, r 1 di. Patella, III p 1 me; IV r 1me. Tibia, I–II v 2-2 -2, p 1-1-1; III v 2 -0-1, p 1-1-1, r 1-1-1; IV v 1 -0-1, p 0-1-0, r 1- 1-1. Metatarsus, I–II v 2-2; III v 2 -0-1, p 1-0-2, r 1-0-2; IV v 1 -0-1, p 1-0-2, r 1-1-1. Abdomen dorsally yellowish with four pairs of brown markings (Fig. 22); ventrally gray. Spinnerets long and brown.

Female. Unknown.

Comments. The male holotype was collected in a pitfall trap, in a várzea ecosystem, which corresponds to a seasonal wet floodplain forest inundated by white water rivers that occurs in the Amazon River Basin of South America. The specimen has a malformation in the left first- and in the right third legs, consisting of a reduction in size and macrosetae.

Distribution. Only known from its type locality, in the Amazonas department, Colombia (Fig. 23).