Cissidium amboroense Darby 2015

Figs 4C, 6B, 7G, 47

Material examined

Holotype BOLIVIA • ♀; Santa Cruz dep., W. Amboro NP, Siberia Pass env.; 2450 m a.s.l.; 28 Nov. 2013; 17°50′12″ S, 64°42′08″ E; sifting litter; Winkler app. extr.; P. Baňař leg.; UASC.

Paratypes BOLIVIA • 2 ♀♀, 1 ♂; same collection data as for holotype; MMBC / BMNH • 1 ex.; “ GPS 31, BOL/ Nov 2013 /08; BOLIVIA 2013 Santa Cruz dep.”, W. Amboro NP, Siberia Pass env.; 17°50′25″ S, 64°41′58″ E; 2481 m a.s.l.; sifting litter; Winkler app. extr.; P. Baňař leg.; BMNH .

Supplementary description

The following description amplifies the type description of Darby (2015), in particular by adding more details of the meso- and metaventral characters, in order to conform with the present paper.

SIZE. Habitus (Fig. 47A), length 0.78 mm.

COLOUR. Dusky yellow, legs and antennae a little paler.

HEAD. Antennomeres III–XI length 0.38 mm, III–IX length 0.19 mm, X–XI length 0.19 mm; width across eyes 0.21 mm; mentum and submentum (Fig. 4C).

PRONOTUM. Length 0.31 mm, width, 0.20 mm, shining, pubescent; lateral margins slightly angled medially, concave to rectangular hind angles, bordered, the border continuing along the posterior margin, medial emargination before scutellum sinuous. (Fig. 47B).

ELYTRA. 0.47 mm long, 0.38 mm wide.

MESOVENTRITE. Medial extension of collar, broad, parallel-sided; mid-keel widest posteriorly, hind angles not reaching mesocoxal borders; keel long, with 4 setae, tapering narrowly to point at the base of the mesocoxae; mesoventral lateral margins evenly rounded without serrations; humeri toothed, posterior margin sloping strongly posteriad (Fig. 47C).

METAVENTRITE. Pubescent, length 1.10 mm, width across spines 0.85 mm, disc simple.

GENITALIA. Female spermatheca globular (Fig. 6B). Male aedeagus pointed, not so beak-shaped as many species and with 15 short, thick, blunt setae on ventrite VIII (Fig. 7G).

Remarks

The form of antennomere XI with a short median interruption and the sinuate posterior margin of the pronotum before the hind angles distinguish this species from the other Bolivian Cissidium .