Gorhamium unidentatum sp. nov.

Figs 2 C, 3 B, 4 C, 5 E – H, 6 F, G

Type material.

Holotype • male, “ Ecuador, 50 km SW Quito, San Francisco de las Pampas, Otonga res., 1500 m, 0 ° 25 ' S, 79 ° 00 ' W, 5–6. Dec 2010, Bolm lgt. “ (UPOL).

Diagnosis.

Pronotum black. Elytra bicolor orange-black with suture, longitudinal median oval spot, and triangular apical spot black. Phallus ball-shaped apically, ventromedial opening widest in basal third. Apex of each paramere fitted with a sharp laterally projected tooth, internal sac with a series of diminutive teeth (e, Fig. 6 G).

Description.

Body length: 6.4 mm, width across the humeri: 1.2 mm. Body black, only elytral sidebars orange (with whole suture, longitudinal median oval spot and triangular spot in apical quarter black, remaining sidebars orange (Fig. 2 C). Head mostly hidden by pronotum in dorsal view. Elytra slender, 4.5 × longer than humeral width (Fig. 2 C); primary costae 2 and 4 and basal 1 / 5 of primary costa 3 elevated; reticulate cells oval, strongly irregular, secondary costae 3 and 4 diminishing apically.

Male. Eyes medium-sized, interocular distance 1.3 × longer than eye diameter (Fig. 3 B). Antennae with antennomere 3 (= A 3) 1.3 × shorter than A 4, A 4 – A 10 subequal in length; antennal branches flattened, considerably lengthening medially, A 3 lamella 1.2 × longer than antennomere A 3 length, A 4 lamella 1.35 × longer than A 4 length, A 5 lamella 1.5 × longer than A 5 length (Fig. 4 C). Abdominal sternum VIII widely emarginated in distal third (Fig. 5 F), its proximal margin almost straight. Tergum X elongate, 1.7 × longer than sternum IX on the sides (Fig. 5 E). Phallus bent ventrally in distal 1 / 3, constricted subapically, apex ball-shaped; ventromedial opening widest in basal quarter (b, Fig. 6 G); dorsal hook shifted in distal quarter (c, Fig. 6 G). Parameres as long as 2 / 3 of phallus, with a single, laterally projected, apical tooth; ventrobasal parameral protrusions slender, joined medially in a ring-like bridge (d 3, Fig. 6 G).

Female. Unknown.

Etymology.

The specific name refers to the single sharp tooth at the apex of each paramere.

Distribution.

Ecuador.