Key to species of Zemacrosaldula

Remark. Additionally helpful but not necessarily exclusive characters are provided between square brackets.

1 Body elongate-ovate (Figs 1–2). Dorsum mostly dull in appearance, with rather evenly distributed, short whitish pubescence. Lateral margins of pronotum uniformly dark or narrowly pale. Hemelytra with several individual or coalesced whitish markings (Figs 1–2, 11–12). Face pubescent (Figs 5–8). Male genitalia: parandria narrowly subtriangular, acuminate at tip, with evenly curved inner margins (Fig. 19); paramere without distinct processus sensualis (Figs 15–16); apical half of aedeagus with subelongate and bent anterolateral sclerite (Fig. 21); filum gonopori coiled 1.5 times (Fig. 24).............................................................. 2

- Body broad-ovate (stocky) (Figs 3–4). Dorsum shinier in appearance (at least head and pronotum contrastingly shiny), with sparser, less evenly distributed or reduced, short to very short whitish pubescence. Lateral margins of pronotum uniformly dark. Hemelytra with few individual (not coalesced) whitish markings (Figs 3–4, 13–14). Face pubescent (Fig. 9) or glabrous (Fig. 10). Male genitalia: parandria broadly subtriangular, obtusely rounded at tip, with angular inner margins (Fig. 20); paramere with distinct processus sensualis (Figs 17–18); apical half of aedeagus with Y-shaped anterolateral sclerite (Fig. 22); filum gonopori coiled 1.25 times (Fig. 25)........... 3

2 Antennae: segment II at least 2.4x longer than segment I. Pronotum: lateral margins uniformly dark or narrowly pale. Hemelytra with several, often coalesced, whitish markings (Figs 1, 11). Male paramere: processus hamatus acuminate and slightly upturned at tip (Fig. 15). [Distribution: North Island and northeastern South Island.].............................................................................. Z. australis (White)

- Antennae: segment II at most 2.2x longer than segment I. Pronotum: lateral margins uniformly dark. Hemelytra with several individual (not coalesced) whitish markings (Figs 2, 12). Male paramere: processus hamatus narrowly rounded and subrectilinear at tip (Fig. 16). [Distribution: southernmost areas and west coast of the South Island.]................................................................ Z. kapekape new species

3 Face pubescent (Fig. 9); slightly to moderately contrasted in colour (with partially pale transverse swelling, maxillary plates, anteclypeus). Dorsum (Fig. 3) moderately shiny (especially head, pronotum, scutellum), with short, somewhat sparse and unevenly distributed whitish pubescence. Hemelytra with clavus and corium largely pruinose. Underside of thorax mostly pubescent. Male paramere (Fig. 17): processus sensualis well developed; processus hamatus narrowly rounded at tip. [Hemelytra (Fig. 13): corium frequently with a pair of semilunate marks in basal third and a subquadrate medial mark at about midlength. Distribution: South Island, excluding southernmost areas and the west coast.]............................................... Z. whakarunga new species

- Face glabrous (Fig. 10); not contrasted in colour (entirely black or at most with transverse swelling slightly paler near sides or facial midline). Dorsum (Fig. 4) very shiny overall, with very short, very sparse (reduced) and quite unevenly distributed whitish pubescence. Hemelytra with clavus largely pruinose; corium partially pruinose (inner endocorium, subbasal exocorium). Underside of thorax mostly glabrous. Male paramere (Fig. 18): processus sensualis slightly developed; processus hamatus broadly rounded at tip. [Hemelytra (Fig. 14): corium largely immaculate, frequently with a subquadrate medial mark subapically. Distribution: South Island west coast, in the vicinity of the Fox and Franz Josef glaciers.]................................... Z. pangare new species