Ilargus macrocornis sp. nov.

Figs 67–70, 144

Type material. Holotype: male, ECUADOR: Morona Santiago: Cordillera de Cutucú; road from Patuca to Santiago, 2.8058° S, 78.2462° W, elev. 1000 m, 13 July 2004, coll. Maddison, Agnarsson, Iturralde, Salazar, WPM#04–040 (UBC-SEM AR00152, QCAZ).

Etymology. The specific epithet is from the combination of macro- (long, large) and cornis (horned), referring to the large spur on the front surface of the male chelicera.

Diagnosis. Differs from other species by the presence of a large spur on the front surface of the male chelicera (Fig. 70).

Description. Male (holotype, UBC-SEM AR00152). Carapace length 1.7; abdomen length 1.7. Chelicera (Fig. 70): red brown; front surface with a long curved spur proximally. Palp (Figs 68–69): tibia and cymbium yellow brown, other segments cream. Embolus long and coiled for less a circle, with a short and thin lamella; proximal tegular lobe large; retrolateral tibial apophysis finger-like; ventral tibial bump absent. Measurements of legs: I 4.2, II 2.9, III 3.3, IV 3.8. Color in alcohol (Fig. 67): carapace dark brown, eye area with guanine deposits, behind eye area with a medial and two marginal yellowish stripes; abdomen dark brown, with many silvery white speckles and a large leaf-like marking medially; legs yellowish to dark brown.

Female. Unknown.