3.28. Huancabamba gen. nov.

Figs 4A, 11A, B, 18A-C, 24A, B, 29A

Type species.

Huancabamba kubricki gen. et. sp. nov. by present designation.

Diagnosis.

Huancabamba gen. nov. can be distinguished from all other Metasarcidae genera by the combination of following: Kappa-type DSS; male femur IV at least 1.6 longer than DS length and with low tubercles; ocularium with two low tubercles; area III with spines; coxa IV apex reaching area III; penis with more than 13 MS C; a dry-mark in depression of ocularium, carapace, and lateral region to ocularium.

Description.

Kappa-type DSS, with carapace very wide, constriction I weakly marked and coda undefined, coalescing with mid-bulge. Ocularium low, medially depressed. Ocularium with two low tubercles. Areas of dorsal scutum moderately tuberculate. Area I undivided. Area III armed with two high spines. Posterior margin of DS armed with a pair of high tubercles. Coda short, without constriction. Coxa IV reaching area III. Coxa IV unarmed (Fig. 4A). Femur IV about same size as dorsal scutum length (Figs 11A, B, 24A). More than 13 MS C. Penis stylus thin thickness. Penis VP thin thickness (Fig. 18A-C).

Derivatio nominis.

The genus name, a noun in the nominative singular, from Quechua, huanca (stone) + bamba (plain). It refers to Huancabamba depression, an interruption of the Andean Mountains, located between southern Ecuador and northern Peru. This depression constitutes a biogeographic barrier between the northern Andes and the central Andes. The name is a reference to this Metasarcidae genus occurred fartherst north. Gender: feminine.

Distribution.

(Fig. 29A) PERU. Cajamarca .

Species composition.

Huancabamba kubricki gen. et. sp. nov.