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Volume 80, 1952
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Asopinae

1. Posterior angles of pronotum projecting as large spines, posterior angles of connexivum in each segment produced backwards as small black spines; apex of scutellum narrowly rounded; mesosternum with strong median groove, without median keel; metathoracic scent-gland orifice slit-like, inconspicuous, without any raised plate; anterior abdominal spine large, reaching to middle coxae; rostrum reaching only to middle coxae; length, 11–12 mm. Oechalia consocialis (Boisduval) (Figs. 7, 19, 31 43, 52)
Posterior angles of pronotum not spined in N.Z. forms, posterior angles of connexivum projecting but not produced back as spines; apex of scutellum broadly rounded; mesosternum without median groove, with low median keel; metathoracic scent-gland orifice conspicuous, its spout continued on to a prominent raised plate, anterior abdominal spine small, not reaching to anterior end of hind coxae; rostrum reaching to hind coxae; length of ♀, 85–15 mm. Cermatulus nasalis (Westwood) 2
2 Sides of pronotum straight or nearly straight, if somewhat sinuate in middle then posterior half in line or nearly in line with anterior half; N. Z. specimens without metallic greenish reflections; disc of tylus with well-defined punctures; sides of posterior half of basal rostral segment not greatly flattened, usually strongly convex 3
Sides of pronotum strongly sinuate in middle, posterior half projecting outward at a marked angle to anterior half, with metallic greenish or bronzy reflections on dorsal surface of abdomen, disc of mesosternum, and usually on dorsal surface of head, pronotum and scutellum; disc of tylus with few, shallow or obsolete punctures; sides of posterior half of basal rostral segment strongly flattened or even concave; anterolateral margin of juga with most of the curve lateral and without the nearly transverse anterior margin of subsp. nasalis and apex of head thus less bluntly and more narrowly rounded (Fig. 9), apex of scutellum off-white or creamish-yellow; recorded only from the Three Kings Island, N. Z. C. nasalis subsp. turbotti Woodward (Figs. 9, 34)
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3. Pronotum with main anterior part sloping down on a markedly different plane from that of posterior part, and thus appearing rather strongly declivous in front; posterior pronotal angles moderately prominent and projecting notably beyond bases of hemelytra; apex of head broadly and rather bluntly rounded, with anterior margin of juga nearly transverse (Fig 8); apex of scutellum brown or orange-brown; punctation of pronotum deep and coarse; in ♀, width of pronotum between posterior angles 2.3–2.45 times median length, post. W. : ant. W = 2.4–2.55 (in ♂, 2.2–2.3 and 2.3–2.4); punctation of ventral surface of metathorax coarse, in posterior division adjacent punctures touching or less than one puncture width apart; antennae more than half as long as body (c 0.6 times); length of ♀ 10.5–12.5 mm., of ♂ 9–10 mm.; widespread C. nasalis subsp. nasalis (Westwood) (Figs. 8, 20, 32, 44, 53)
Pronotum with main anterior part not forming a markedly different plane from that of posterior part, and thus flatter, more gradually curved, and not appearing strongly declivous in front; posterior pronotal angles not prominent, not or scarcely projecting beyond bases of hemelytra; apex of head moderately broadly rounded; apex of scutellum yellow or cream; punctation of pronotum deep but comparatively fine; in ♀, width of pronotum between posterior angles 2.1 times median length, post. W. ant. W. = 2.1–2.2; punctation of ventral surface of metathorax deep but rather fine, adjacent punctures rarely touching, mostly with at least one puncture width between them, antennae shorter, barely half as long as body, length of ♀, 8.5–10 mm, of restricted alpine distribution C. nasalis hudsoni subsp. nov. (Figs. 15, 33)
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