Australasian green shield bug - Glaucias amyoti (Dallas, 1851)
(Native to New Zealand)
ADULT: Main diagnostic characters
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SIZE: 12-17 mm (average 15 mm). COLOUR: Mostly green, sometimes with yellow, orange or brownish hue.
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HUMERI (pronotum hind corners) rounded, not extended laterally, nearly in line with sides of abdomen.
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SCUTELLUM (triangular shield) without markings along base.
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MESOSTERNAL CARINA (midline ridge underneath thorax between mid and hind legs) weakly developed.
NYMPH: Main diagnostic characters
Immature stink bugs or nymphs moult through five stages (instars) before becoming adults; the fifth stage or last instar nymph is documented below.
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BODY LENGTH: About 9 mm. COLOUR: Head, thorax, wing pads greenish, lightly outlined with black; antennae black; abdomen greenish (paler in front) with 3 large transverse black plates near midline and thin, elongate, black marks along sides; legs dark.
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BODY LENGTH: About 9 mm. COLOUR: Head, thorax, wing pads greenish amber, heavily outlined with black (thorax often nearly completely black); antennae black; abdomen yellowish green with 3 large transverse black plates near midline and oblong dark amber/black markings along sides; legs dark.
