Schellenberg’s soldier bug - Oechalia schellenbergii (Guérin, 1831)
(Native to New Zealand)
ADULT: Main diagnostic characters
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SIZE: 9-12 mm. COLOUR: Brownish yellow, with several pale and dark markings.
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ROSTRUM (beak): First segment thick, directed away from head, exposed, at most with its base lying between bucculae (ridges underneath head)
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HUMERI (pronotum hind corners) pointed like a spine. SIDES OF ABDOMEN with hind corner of segments pointed like a black-tipped spine.
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THORAX UNDERSIDE without ear-shaped scent gland opening between mid and hind legs. ABDOMEN UNDERSIDE with strong spine, extended forward as far as mid legs.
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.