(Figs. 125–129, 220)

Description. Male postabdomen: Sternite 5 as described for the species group. Surstylus with anterodorsal corner strongly projecting, acute, with a striated raised ridge along anterior edge, ventral tooth narrow, with a medial tooth, anteroventral corner rounded (Fig. 126). Pregonite indistinct, fully fused with postgonite. Postgonite with lobes barely separated, anterior lobe quadrate, posterior lobe pointed, long, with a narrow tab projecting from interior face. Basiphallus narrow, with long epiphallus and preepiphallus. Distiphallus with small, setose dorsal knob (Fig. 125).

Female postabdomen: Tergites 6–7 and sternites 6–7 wider than long, moderately sclerotized, covered with microtomentum. Tergites with 3 posterior strips, sternites with 2 posterior strips. Tergite 8 shiny, widest anteriorly, strongly pinched medially, anterior and posterior margins emarginated medially, anterior corners nearly meeting sternite 8 laterally. Epiproct with short anterior arms, covered with microtomentum except arms, with 1 pair of setae and a medial unpaired seta (Fig. 127). Cerci narrow. Sclerites of sternite 8 narrow anteriorly, becoming gradually wider posteriorly, microtomentum covering posterior quarter, apices rounded and without hooks. Hypoproct depressed antero-medially (Fig. 128). Spermathecae round, apical invagination meeting basal invagination, sclerotized duct short (Fig. 129).

Type material. Holotype ♂: ECUADOR: Napo: Quito–Baeza road, Papallacta, 3200 m, elfin forest, above thermal spgs., pan traps, 16–21 Feb 1983, L. Masner, debu01033869 (QCAZ). Paratypes: same data as holotype (24 ♂, 11 ♀, DEBU, QCAZ); Baeza, 27 km NW, 2700 m, dung trap, 2–6 Mar 1976, S. Peck (4 ♀, DEBU); Baeza, 42 km NW, 3300 m, carrion trap, 2–6 Mar 1976, S. Peck (2 ♂, DEBU); as above but dung trap (1 ♂, 1 ♀, USNM); Papallacta, above thermal springs, 3200 m, elfin forest, pan traps, 16–21 Feb 1983, L. Masner (4 ♂, DEBU); Azuay: Cerro Tinajillas, 3100 m, 18–21 Mar 1965, L.E. Peña (1 ♂, CNCI); Carchi: Guandera For. Res., 15 km E San Gabriel, 3400 m, sweeping forest trail, 1 Nov 1999, S.A. Marshall (1 ♂, 2 ♀, DEBU); as above but hand collected (2 ♀, DEBU); as above but 3300 m, trail to station, sweeping (2 ♂, 1 ♀, DEBU); Troya, 2950 m, 11–13 Jun 1965, L.E. Peña (1 ♂, CNCI); Pichincha: Tandapi, 34.5 km E, 2835 m, bamboo shrub, dung trap, 24–29 Jun 1975, S. Peck (3 ♀, DEBU); Tandapi, 35 km E, bamboo, 24–29 Jun 1975, S. Peck (1 ♂, 1 ♀, DEBU). COLOMBIA: Norte de Santander: above Pamplona, 2743 m, dung trap, 9–13 May 1974, S. Peck (1 ♂, 1 ♀, DEBU). BOLIVIA: La Paz: Chuspipata, 16°17.5'S 67°49.6'W, 3100 m, 19 Mar 2001, A. Friedberg (1 ♂, USNM).

Comments. The species name honours Stewart Peck, a prolific and generous collector who obtained many of the specimens used in this revision, including part of the type series of this species.